appendix d cost back-up information · project — 7rt — 1. f^o^/b)!! hi — ^h./ii/ _. 41...
TRANSCRIPT
APPENDIX D
COST BACK-UP INFORMATION
TABLE 7-4 COST ESTIMATE ALTERNATIVE SML-3
DIRECT COSTS
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
TOTAL DIRECT COSTS $0
INDIRECT COSTS
TOTAL INDIRECT COSTS $0
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT) $0
ENVIRONMENTAL MONITORING AND REVIEW COSTS
Annual Monitoring GroundwaterSurface Water and Sediment (Includes 20 contingency) $125000
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS) $1551000
Five Year Site Reviews (includes 20 Contingency) $60000
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS) $129000
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-3 $1680000
WOODARD CURRAN (9509306) Feasibility Study 31000
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TABLE 7-8 COST ESTIMATE ALTERNATIVE SML-4A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Pilot Scale Reid Study Installation of 17 Injection wells
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater ExtractionDischarge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS
In Situ Chemical Oxidation injection Injection Well Maintenance
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 5 YEARS)
$75000 $85000
$92000 $453000 $164000
$869000
$174000
$1043000
$52000 $52000
$104000 $104000
$312000
51355000
$391000 $20000
$411000 $41000 $82000
$534000
$2190000
TABLE 7-8 COST ESTIMATE ALTERNATIVE SML-4A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
Monitoring 2 Extraction Wells (Quarterly) Maintenance (Annual)
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (730 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-4A (1) Costs for upgrades to pump station on Route 112 not included
$5000 $27000
$32000 $3000
$6000
$41000
5509000
$125000
$1551000
$60000
5129000
$5734000
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TABLE 7-9 COST ESTIMATE ALTERNATIVE SML-4B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Pilot Scale Field Study Installation of 17 Injection wells
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater ExtractionTreatmentDischarge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS In Situ Chemical Oxidation injection Injection Well Maintenance
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 5 YEARS)
$75000 $85000
$92000 $100000 $443000 $11000
$676000
$1482000
$296000
$1778000
$89000 $89000
$178000 $178000
$534000
52312000
$391000 $20000
$411000 $41000 $82000
$534000
52190000
TABLE 7-9 COST ESTIMATE ALTERNATIVE SML-4B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Tretment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (730 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-4B
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
S129000
$9359000
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[SUBTOTAL
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Saco Municipal Landfill Feasibility Study Saco Maine
Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
1 EQUIPMENT COSTS Item Quantity
(a) Extraction System Extraction Wells with Development (Level D) 2 Pumps with VFDs and Controls 2 Flow meters (2 magmeters) 2 Piezometers (Level D) 11 Piping (HOPE)
2 inch 1160
Subtotal Contractors Profit ( 10 of equipment cost) Extraction System Subtotal
(b) Treatment System
Flow meter (2 magmeter) Mix tank (400 gal) Mixer (1 HP) KMnO4 storage tank (3800 gal w sec cont) Mixer (3 HP) Chemical feed pump (120 gpd) NaOH storage tank (1 800 gal w sec cont) Chemical feed pump (70 gpd) Spare portable mixer (1 5 HP) Oxidation tank (2000 gal) Mixer (2 HP) Lamella separator (240 sq ft) 1 Transfer tank (400 gal) 1 Transfer and backwash pumps (2 HP) 3 Greensand Filters (3 ft diam) 2 HCI storage tank (2500 gal w sec cont) 1 Chemical feed pump (80 gpd) 1 Activated alumina colums (5 ft diam 120 cu ft) 2 GAC vessels (4 daim 1800 Ib GAC) 2 Backwash holding tank (7500 gal) 1 Clearwell (2000 gal) 1 Sludge holding tank (5500 gal) 1 Air Diaphragm Pumps - Press feed and sludge trans 2
Unit Unit Cost
ea $15000 ea $3300 ea $2300 ea $3000
LF $8
ea $2300 ea $770 ea $1500 ea $10120 ea $2300 ea $850 ea $6160 ea $790 ea $1800 ea $2800 ea $2200 ea $45000 ea $770 ea $3000 ea $8000 ea $9900 ea $790 ea $26800 ea $10296 ea $7600 ea $2800 ea $6300 ea $1000
Total Cost
$30000 $6600 $4600
$33000
$9280
$83480 $8350
$91830
$2300 $770
$1500 $10120
$2300 $850
$6160 $790
$1800 $2800 $2200
$45000 $770
$9000 $16000 $9900
$790 $53600 $20592
$7600 $2800 $6300 $2000
Pagel of 2
Saco Municipal Landfill Feasibility Study Saco Maine
Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
Air Compressor (3 HP) Polymer mixing tank (50 gal) Mixer (05 HP) Chemical feed pump- polymer (120 gpd) Static mixers - in-line 3 Sludge press (4 cu ft) Fork lift (for sludge bin and chemical handling) Building Costs (65L x 45W x 1 6H)
1111211
2925
ea ea ea ea ea ea ea
SF
$1700 $330 $1300 $850 $600 $24000 $23000 $50
$1700 $330 $1300 $850 $1200 $24000 $23000 $146250
Subtotal Contractors Profit ( 10 of equipment cost) Treatment System Subtotal
$402272 $40230
$442502
(c) Surface Water Discharge System 3 HOPE Pipe Infiltration Basin (150 x 150 x 5) Fence Swing Gate
10704167600
1
LF CY
LF Ea
$9 $10 $15 $400
$9630 $41667 $9000 $400
Subtotal Sales Tax ( 6 of equipment cost) Contractors Profit ( 10 of equipment cost) Discharge System Subtotal
$9630 $580 $960
$11170
EQUIPMENT SUBTOTAL $545502
2 INSTALLATION COSTS Instrumentation (15 of Equipment Subtotal) Electrical (15 of Equipment Subtotal) Process Piping (30 of Equipment Subtotal) HVAC System (7 of Equipment Subtotal) Labor (30 of Equipment Subtotal) Field Indirect (90 of Labor Cost)
$81825 $81825
$163651 $38185
$163651 $147286
INSTALLATION SUBTOTAL $676422
TOTAL CAPITAL COSTS Note Capital Costs are rounded to the nearest thousand
$1222000
Page 2 of 2
COST CATEGORIES
Labor (1 full-time operator) Electricity Other utilities (oil phone) Chemicals Maintenance 5 of capital Sludge disposal Monitoring OfficeSuppliesMiscdisposable items
TOTAL COST
ANNUAL COSTS
$73000 $9000 $5000
$47000 $27300 $13700 $17080 $5000
$197000
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM)
POWER ESTIMATE
2 Extraction pumps 2 Continuous mixers 4 Chemical Feed Pumps 1 Transfer Pump 1 Air Compressor HVACLights Miscellaneous
j bull bull H P shy
280300100200300300200
8 r HOURS ^ K W DAY
209 24 224 24 075 24 149 24 224 6 224 18 149 24
KWH DAY shy
50 54 18 36 13 40 36
ELECTRIC POWER SUMMARY HP KW
KWH DAY
KWH YEAR
TOTAL 1680 1253 247 90182
UNIT POWER COST SO 100 |
TOTAL ANNUAL POWER COST $9000 |
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Chemical Costs
QUANTITY CHEMICAL YEAR
Sodium Hydroxide (25) 30130 Hydrochloric Acid (30) 34488 Potassium Permanganate pure solid 6117 Polymer 22 GAC 1104
Subtotal Freight (10)
SUBTOTAL CHEMICALS
Sludge Costs
ITEM Wet Tonsyr 55 Unit Hauling and Tipping cost ($WT) $250 Sludge Disposal Cost (Syr) 513695 Assuming Sludge is disposed of as hazardous waste
UNITS
Gal Gal Lbs Lbs Lbs
UNIT COST
$040 $060 $160 $250 $300
ANNUAL COST
$12100 $20693 $9800
$100 $3300
$42693 $4269
$46962
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Monitoring Costs
1 Extraction Wells (Monitored Quarterly) No of Samples = 2
1 1
MSMSD =
4
Trip Blanks =Duplicates =
Eq Blanks = 0 Total =
Cost for VOC Analysis =Cost for Metals Analysis=
Monitoring Frequency =
Cost Subtotal =
0
$147 (for VOC Method 8260) $ 181 (for TAL Metals Method SW-846)
4 times per year
$5200 per year
2
QAQC =Total = 3
0
Cost for VOC Analysis =Cost for Metals Analysis =
Monitoring Frequency =
Cost Subtotal =
Total Cost =
Treatment System Sampling (Monthly) No of Samples= 3
$150 (for VOC Method 8260) $ 180 (for TAL Metals Method S W-846)
12 times per year
511880 per year
$17080 per year
Influent Criteria Flow r^70gpm Mn --li7 mgL As Fe Jgt 45 mgL pH ^-61 units
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Source 0101 MOD Modflow modelling by JRH w 15 safety factor
Average of wells 95-4SAB and 97-14S-1 and 2 shyAverage of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB
Alkalinity 3pmgLasCaCO3 Average of wells 95-4SAB and 97-14S-1 and 2 Benzene ^2uc Average of wells 95-4SAB
Effluent Criteria Mn 084 mgL As 005 mgL Benzene 5 ugL
Assumptions All metals in reduced state Linear titration curve between pH 45 and 105
Unit Processes Wells pumps and piping KMnO4 and NaOH rapid mix addition Oxidation tank w mixer Lamella inclined plate separator Transfer tank and pumps Manganese greensand filters HCI addition Activated alumina ion exchange Granular activated carbon vessels Backwash tank Sludge thickening tank Polymer mixing tank Sludge press Discharge piping
Wells pumps and piping Desired flow velocity in piping East well flow East well line diameter
Function Deliver groundwater to treatment Oxidize Fe Mn As pH adjust to 80 Oxidize Fe Mn As pH adjust to 80 Remove majority of Fe some Mn and As Shift from gravity to pressure operation Remove Fe Mn to less than 05 ppm Adjust pH to 60 Remove As to less than 30 ppb Remove VOCs Collect and settle backwash water to minimize volume Mix sludge with polymer for enhanced dewatering Prepare polymer for mixing with sludge Press sludge for disposal Convey clean water to discharge point
Notes 4 ftsec
23 gpm 2 inches
Page 1 of 6
Saco Landfill Groundwater Pump amp Treat System
Line length Depth to screen midpoint Additional head required Total head required Pump size required West well flow West well line diameter Line length Depth to screen midpoint Additional head required Total head required Pump size required
KMnO4 and NaOH and caustic Mix tank residence time Mix tank volume Tank diameter Tank height Actual tank volume w freeboard Dose KMnO4 required
KMnO4 solution strength
KMnO4 addition rate Desired storage time KMnO4 storage volume reqd
KMnO4 Tank diameter
KMnO4 tank height Actual tank volume w freeboard Desired pH Alk per pH unit (as CaCO3) Alkalinity lost in oxidation Total alkalinity required NaOH solution strength NaOH addition rate Desired storage time NaOH storage volume reqd NaOH tank diameter NaOH tank height Actual tank volume w freeboard
Conceptual Design 580 feet 60 feet 44to76bgs
50^ feet 25 feet elevation difference + 10 psi excess 110 feet 11 hp 47 gpm
2 inches 580 feet 32 feet 18to46bgs 50 feet 82 feet 17hp
addition Notes 5 mm Reasonable time for stable pH control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
57 mgL Dose 094 Iblb Fe 192 Iblb Mn 2 Iblb As
50000 mgL
008 gpm 116 gpd 17 IbMnday
30 days 3500 gallons
7 feet
131 feet Includes 1 ft freeboard 3790 gallons
80 units 177 mgL 35 meq 15 meq 149 Ib as CaCO3lb Fe 121 Iblb Mn 2 Iblb As 61 meq 75 N 25 (ww) NaOH approx = 75N
006 gpm 83 gpd 30 days
2500 gallons 7 feet
97 feet Includes 1 ft freeboard 2790 gallons
Page 2 of 6
Saco Landfill Ground water Pump amp Treat System
Oxidation tank Oxidation tank residence time Oxidation tank volume Tank diameter Tank height Actual tank volume w freeboard
Lamella inclined plate separator
Surface loading rate
Required surface area
Unit size Number of units Approx height Approx length Approx width
Transfer tank and pumps Transfer tank residence time Transfer tank volume Tank diameter Tank height Actual tank volume w freeboard Pump capacity Pump flow Pump horsepower
Manganese greensand filters
Surface loading rate
Required surface area Required diameter
Unit size provided Diameter provided Number of units
Activated alumina ion exchange Desired pH for act alumina HC1 required to offset NaOH
Conceptual Design Notes
25 min Reaction time of 5 to 30 minutes suggested in AWWA 1800 gallons
6 feet 95 feet Includes 1 ft freeboard
2010 gallons
04 gpmfr 04 to 06 gpmsq ft recommended by Parkson
175ft2
240ft2 Unit sizes of 240480 740 and 1150 sq ft available 1 unit
13 feet Dimensions from Parkson 11 feet 6 feet
Notes 5 min Reasonable time for stable pump control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
70 ft head 30 psi 70 gpm
21 HP
3 gpmft2 3 to 5 gpm per sq ft recommended in AWWA
23 ft2
27ft
28ft2
30ft 2 units Plan to alternate units can also run in series or parallel
Notes 60 units 61 meq
Page 3 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
HC1 required to achieve setpoint 25 meq Total acidity required 86 meq HCI solution strength 9NHC1 addition rate 007 gpmDesired storage time - 30 days HCI storage volume reqd 2900 gallons HCI tank diameter 7 feet HCI tank height 111 feet Actual tank volume w freeboard 3190 gallons
Act alum surface loading rate 1 gpmft2
Required surface area 70ft2
Required diameter 47ft
Unit size provided 79ft2
Diameter provided 50ft EBCT required 50 min Volume to satisfy EBCT 47 cu ft Bed volumes to breakthrough 10000 volumes Desired time to breakthrough 90 days Bed vol reqd for breakthrough 121 cu ft Controlling bed volume 121 cu ft Number of units 2 units
Granular Activated Carbon Carbon vessels required 2 units Flow rate 700 gpm Min vessel diameter 48 inches Mass of carbon in vessel 1700 Ibs Mass of carbon used per day 3 Ibs Life of vessel 15 years
Clearwell and backwash settling tanks Filter backwash rate 175 gpm Backwash cycles per day 2 cycles Backwash duration 10 minutes Settling tank hold time 2 days Settling tank volume required 7000 gallons Settling tank diameter 9 feet Settling tank height 157 feet Actual tank volume w freeboard 7480 gallons
20 deg Be = 30 soln = 92 N 94 gpd
Includes 1 ft freeboard
1 to 5 gpm per sq ft recommended in AWWA
FromAWWAp 615 Regenerate once per quarter Complicated task
Plan to alternate units can also run in series or parallel
Notes Plan to run in series
Based on use rate of 003 lb1000 gal from Calgon
Notes Assume 250 of forward flow rate
Includes 1 ft freeboard
Page 4 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Clearwell volume required Cleanvell tank diameter Clearwell tank height Actual tank volume w freeboard
Sludge storagethickening tank Mass of Fe removed
Mass of Mn removed
Mass of As removed
Misc other metals removed Total metals removed Cone of As in dry sludge Hazardous waste Settled sludge concentration Sludge specific gravity Settled sludge volume Sludge holding between presses Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard
Polymer day tank Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard Polymer dose Polymer use
Sludge press Pressed sludge concentration Sludge specific gravity
Pressed sludge volume Pressed sludge mass
1750 gallons 6 feet
93 feet 1960 gallons
38 Ibday 72 Ibday
23 Ibday
37 Ibday 01 Ibday 02 Ibday 11 Ibday
120 Ibday 980 mgkg Yes
20000 mgL 101 714 galday
7 days maximum
Includes bull=11 ft freeboard
Notes asFe as Fe(OH)3
as Mn includes Mn added with KMnO4
asMnO2
as As as As(OH) assumes 10 of Fe Mn total
Hazardous waste threshhold is 100 mgkg 2
5100 gallons 8 feet
145 feet 5480 gallons
30 gallons 2 feet
23 feet 50 gallons 10 mgL 22 Ibyear
400000 mgL 140
26 galday 300 Ibday
Includes 1 ft freeboard
Notes Polymer diluted in day tank dosed in-line w static mixer
Includes 1 ft freeboard
3 ftVday 45 tonmonth
Page 5 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Required press volume Length Width Height Initial press fill time AOD pump flow rate Compressed air flow rate HP required
Discharge piping Flow rate Desired flow velocity in piping East well line diameter Line length
4ft3
62ft 3 f t 41 ft
5 min 6 gpm
12 scfm 3hp
70 gpm 4 ftsec 3 inches
1070 feet
Assumes more than one press cycle per day as reqd Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI recommendation at peak 100 psi discharge (incorporates 2x correction for high viscosity) Assumes 4 cfmhp
Notes
Page 6 of 6
WOODARDlaquoSLCURRANEngineering bull Science bull Operations
CLIENT
PROJECT H^r^i i^d-ftli
41 HUTCHINS DRIVE DESIGNEDESIGNEDD BBYY Lbull ~~T7lSdltU t tvesampt DATE
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TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
$142000
$851000
$43000 $43000 $85000 $85000
$256000
$1107000
$5000 $40000 $27000
$72000 $7000
$14000
$93000
$509000
$125000
$1^51000
$60000
$129000
$3296000
Feasibility Study 31000
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TABLE 7-14 COST ESTIMATE ALTERNATIVE SML-5B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
$129000
$6919000
Feasibility Study 31000
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TABLE 7-4 COST ESTIMATE ALTERNATIVE SML-3
DIRECT COSTS
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
TOTAL DIRECT COSTS $0
INDIRECT COSTS
TOTAL INDIRECT COSTS $0
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT) $0
ENVIRONMENTAL MONITORING AND REVIEW COSTS
Annual Monitoring GroundwaterSurface Water and Sediment (Includes 20 contingency) $125000
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS) $1551000
Five Year Site Reviews (includes 20 Contingency) $60000
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS) $129000
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-3 $1680000
WOODARD CURRAN (9509306) Feasibility Study 31000
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TABLE 7-8 COST ESTIMATE ALTERNATIVE SML-4A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Pilot Scale Reid Study Installation of 17 Injection wells
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater ExtractionDischarge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS
In Situ Chemical Oxidation injection Injection Well Maintenance
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 5 YEARS)
$75000 $85000
$92000 $453000 $164000
$869000
$174000
$1043000
$52000 $52000
$104000 $104000
$312000
51355000
$391000 $20000
$411000 $41000 $82000
$534000
$2190000
TABLE 7-8 COST ESTIMATE ALTERNATIVE SML-4A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
Monitoring 2 Extraction Wells (Quarterly) Maintenance (Annual)
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (730 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-4A (1) Costs for upgrades to pump station on Route 112 not included
$5000 $27000
$32000 $3000
$6000
$41000
5509000
$125000
$1551000
$60000
5129000
$5734000
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TABLE 7-9 COST ESTIMATE ALTERNATIVE SML-4B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Pilot Scale Field Study Installation of 17 Injection wells
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater ExtractionTreatmentDischarge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS In Situ Chemical Oxidation injection Injection Well Maintenance
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 5 YEARS)
$75000 $85000
$92000 $100000 $443000 $11000
$676000
$1482000
$296000
$1778000
$89000 $89000
$178000 $178000
$534000
52312000
$391000 $20000
$411000 $41000 $82000
$534000
52190000
TABLE 7-9 COST ESTIMATE ALTERNATIVE SML-4B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Tretment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (730 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-4B
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
S129000
$9359000
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Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
1 EQUIPMENT COSTS Item Quantity
(a) Extraction System Extraction Wells with Development (Level D) 2 Pumps with VFDs and Controls 2 Flow meters (2 magmeters) 2 Piezometers (Level D) 11 Piping (HOPE)
2 inch 1160
Subtotal Contractors Profit ( 10 of equipment cost) Extraction System Subtotal
(b) Treatment System
Flow meter (2 magmeter) Mix tank (400 gal) Mixer (1 HP) KMnO4 storage tank (3800 gal w sec cont) Mixer (3 HP) Chemical feed pump (120 gpd) NaOH storage tank (1 800 gal w sec cont) Chemical feed pump (70 gpd) Spare portable mixer (1 5 HP) Oxidation tank (2000 gal) Mixer (2 HP) Lamella separator (240 sq ft) 1 Transfer tank (400 gal) 1 Transfer and backwash pumps (2 HP) 3 Greensand Filters (3 ft diam) 2 HCI storage tank (2500 gal w sec cont) 1 Chemical feed pump (80 gpd) 1 Activated alumina colums (5 ft diam 120 cu ft) 2 GAC vessels (4 daim 1800 Ib GAC) 2 Backwash holding tank (7500 gal) 1 Clearwell (2000 gal) 1 Sludge holding tank (5500 gal) 1 Air Diaphragm Pumps - Press feed and sludge trans 2
Unit Unit Cost
ea $15000 ea $3300 ea $2300 ea $3000
LF $8
ea $2300 ea $770 ea $1500 ea $10120 ea $2300 ea $850 ea $6160 ea $790 ea $1800 ea $2800 ea $2200 ea $45000 ea $770 ea $3000 ea $8000 ea $9900 ea $790 ea $26800 ea $10296 ea $7600 ea $2800 ea $6300 ea $1000
Total Cost
$30000 $6600 $4600
$33000
$9280
$83480 $8350
$91830
$2300 $770
$1500 $10120
$2300 $850
$6160 $790
$1800 $2800 $2200
$45000 $770
$9000 $16000 $9900
$790 $53600 $20592
$7600 $2800 $6300 $2000
Pagel of 2
Saco Municipal Landfill Feasibility Study Saco Maine
Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
Air Compressor (3 HP) Polymer mixing tank (50 gal) Mixer (05 HP) Chemical feed pump- polymer (120 gpd) Static mixers - in-line 3 Sludge press (4 cu ft) Fork lift (for sludge bin and chemical handling) Building Costs (65L x 45W x 1 6H)
1111211
2925
ea ea ea ea ea ea ea
SF
$1700 $330 $1300 $850 $600 $24000 $23000 $50
$1700 $330 $1300 $850 $1200 $24000 $23000 $146250
Subtotal Contractors Profit ( 10 of equipment cost) Treatment System Subtotal
$402272 $40230
$442502
(c) Surface Water Discharge System 3 HOPE Pipe Infiltration Basin (150 x 150 x 5) Fence Swing Gate
10704167600
1
LF CY
LF Ea
$9 $10 $15 $400
$9630 $41667 $9000 $400
Subtotal Sales Tax ( 6 of equipment cost) Contractors Profit ( 10 of equipment cost) Discharge System Subtotal
$9630 $580 $960
$11170
EQUIPMENT SUBTOTAL $545502
2 INSTALLATION COSTS Instrumentation (15 of Equipment Subtotal) Electrical (15 of Equipment Subtotal) Process Piping (30 of Equipment Subtotal) HVAC System (7 of Equipment Subtotal) Labor (30 of Equipment Subtotal) Field Indirect (90 of Labor Cost)
$81825 $81825
$163651 $38185
$163651 $147286
INSTALLATION SUBTOTAL $676422
TOTAL CAPITAL COSTS Note Capital Costs are rounded to the nearest thousand
$1222000
Page 2 of 2
COST CATEGORIES
Labor (1 full-time operator) Electricity Other utilities (oil phone) Chemicals Maintenance 5 of capital Sludge disposal Monitoring OfficeSuppliesMiscdisposable items
TOTAL COST
ANNUAL COSTS
$73000 $9000 $5000
$47000 $27300 $13700 $17080 $5000
$197000
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM)
POWER ESTIMATE
2 Extraction pumps 2 Continuous mixers 4 Chemical Feed Pumps 1 Transfer Pump 1 Air Compressor HVACLights Miscellaneous
j bull bull H P shy
280300100200300300200
8 r HOURS ^ K W DAY
209 24 224 24 075 24 149 24 224 6 224 18 149 24
KWH DAY shy
50 54 18 36 13 40 36
ELECTRIC POWER SUMMARY HP KW
KWH DAY
KWH YEAR
TOTAL 1680 1253 247 90182
UNIT POWER COST SO 100 |
TOTAL ANNUAL POWER COST $9000 |
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Chemical Costs
QUANTITY CHEMICAL YEAR
Sodium Hydroxide (25) 30130 Hydrochloric Acid (30) 34488 Potassium Permanganate pure solid 6117 Polymer 22 GAC 1104
Subtotal Freight (10)
SUBTOTAL CHEMICALS
Sludge Costs
ITEM Wet Tonsyr 55 Unit Hauling and Tipping cost ($WT) $250 Sludge Disposal Cost (Syr) 513695 Assuming Sludge is disposed of as hazardous waste
UNITS
Gal Gal Lbs Lbs Lbs
UNIT COST
$040 $060 $160 $250 $300
ANNUAL COST
$12100 $20693 $9800
$100 $3300
$42693 $4269
$46962
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Monitoring Costs
1 Extraction Wells (Monitored Quarterly) No of Samples = 2
1 1
MSMSD =
4
Trip Blanks =Duplicates =
Eq Blanks = 0 Total =
Cost for VOC Analysis =Cost for Metals Analysis=
Monitoring Frequency =
Cost Subtotal =
0
$147 (for VOC Method 8260) $ 181 (for TAL Metals Method SW-846)
4 times per year
$5200 per year
2
QAQC =Total = 3
0
Cost for VOC Analysis =Cost for Metals Analysis =
Monitoring Frequency =
Cost Subtotal =
Total Cost =
Treatment System Sampling (Monthly) No of Samples= 3
$150 (for VOC Method 8260) $ 180 (for TAL Metals Method S W-846)
12 times per year
511880 per year
$17080 per year
Influent Criteria Flow r^70gpm Mn --li7 mgL As Fe Jgt 45 mgL pH ^-61 units
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Source 0101 MOD Modflow modelling by JRH w 15 safety factor
Average of wells 95-4SAB and 97-14S-1 and 2 shyAverage of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB
Alkalinity 3pmgLasCaCO3 Average of wells 95-4SAB and 97-14S-1 and 2 Benzene ^2uc Average of wells 95-4SAB
Effluent Criteria Mn 084 mgL As 005 mgL Benzene 5 ugL
Assumptions All metals in reduced state Linear titration curve between pH 45 and 105
Unit Processes Wells pumps and piping KMnO4 and NaOH rapid mix addition Oxidation tank w mixer Lamella inclined plate separator Transfer tank and pumps Manganese greensand filters HCI addition Activated alumina ion exchange Granular activated carbon vessels Backwash tank Sludge thickening tank Polymer mixing tank Sludge press Discharge piping
Wells pumps and piping Desired flow velocity in piping East well flow East well line diameter
Function Deliver groundwater to treatment Oxidize Fe Mn As pH adjust to 80 Oxidize Fe Mn As pH adjust to 80 Remove majority of Fe some Mn and As Shift from gravity to pressure operation Remove Fe Mn to less than 05 ppm Adjust pH to 60 Remove As to less than 30 ppb Remove VOCs Collect and settle backwash water to minimize volume Mix sludge with polymer for enhanced dewatering Prepare polymer for mixing with sludge Press sludge for disposal Convey clean water to discharge point
Notes 4 ftsec
23 gpm 2 inches
Page 1 of 6
Saco Landfill Groundwater Pump amp Treat System
Line length Depth to screen midpoint Additional head required Total head required Pump size required West well flow West well line diameter Line length Depth to screen midpoint Additional head required Total head required Pump size required
KMnO4 and NaOH and caustic Mix tank residence time Mix tank volume Tank diameter Tank height Actual tank volume w freeboard Dose KMnO4 required
KMnO4 solution strength
KMnO4 addition rate Desired storage time KMnO4 storage volume reqd
KMnO4 Tank diameter
KMnO4 tank height Actual tank volume w freeboard Desired pH Alk per pH unit (as CaCO3) Alkalinity lost in oxidation Total alkalinity required NaOH solution strength NaOH addition rate Desired storage time NaOH storage volume reqd NaOH tank diameter NaOH tank height Actual tank volume w freeboard
Conceptual Design 580 feet 60 feet 44to76bgs
50^ feet 25 feet elevation difference + 10 psi excess 110 feet 11 hp 47 gpm
2 inches 580 feet 32 feet 18to46bgs 50 feet 82 feet 17hp
addition Notes 5 mm Reasonable time for stable pH control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
57 mgL Dose 094 Iblb Fe 192 Iblb Mn 2 Iblb As
50000 mgL
008 gpm 116 gpd 17 IbMnday
30 days 3500 gallons
7 feet
131 feet Includes 1 ft freeboard 3790 gallons
80 units 177 mgL 35 meq 15 meq 149 Ib as CaCO3lb Fe 121 Iblb Mn 2 Iblb As 61 meq 75 N 25 (ww) NaOH approx = 75N
006 gpm 83 gpd 30 days
2500 gallons 7 feet
97 feet Includes 1 ft freeboard 2790 gallons
Page 2 of 6
Saco Landfill Ground water Pump amp Treat System
Oxidation tank Oxidation tank residence time Oxidation tank volume Tank diameter Tank height Actual tank volume w freeboard
Lamella inclined plate separator
Surface loading rate
Required surface area
Unit size Number of units Approx height Approx length Approx width
Transfer tank and pumps Transfer tank residence time Transfer tank volume Tank diameter Tank height Actual tank volume w freeboard Pump capacity Pump flow Pump horsepower
Manganese greensand filters
Surface loading rate
Required surface area Required diameter
Unit size provided Diameter provided Number of units
Activated alumina ion exchange Desired pH for act alumina HC1 required to offset NaOH
Conceptual Design Notes
25 min Reaction time of 5 to 30 minutes suggested in AWWA 1800 gallons
6 feet 95 feet Includes 1 ft freeboard
2010 gallons
04 gpmfr 04 to 06 gpmsq ft recommended by Parkson
175ft2
240ft2 Unit sizes of 240480 740 and 1150 sq ft available 1 unit
13 feet Dimensions from Parkson 11 feet 6 feet
Notes 5 min Reasonable time for stable pump control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
70 ft head 30 psi 70 gpm
21 HP
3 gpmft2 3 to 5 gpm per sq ft recommended in AWWA
23 ft2
27ft
28ft2
30ft 2 units Plan to alternate units can also run in series or parallel
Notes 60 units 61 meq
Page 3 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
HC1 required to achieve setpoint 25 meq Total acidity required 86 meq HCI solution strength 9NHC1 addition rate 007 gpmDesired storage time - 30 days HCI storage volume reqd 2900 gallons HCI tank diameter 7 feet HCI tank height 111 feet Actual tank volume w freeboard 3190 gallons
Act alum surface loading rate 1 gpmft2
Required surface area 70ft2
Required diameter 47ft
Unit size provided 79ft2
Diameter provided 50ft EBCT required 50 min Volume to satisfy EBCT 47 cu ft Bed volumes to breakthrough 10000 volumes Desired time to breakthrough 90 days Bed vol reqd for breakthrough 121 cu ft Controlling bed volume 121 cu ft Number of units 2 units
Granular Activated Carbon Carbon vessels required 2 units Flow rate 700 gpm Min vessel diameter 48 inches Mass of carbon in vessel 1700 Ibs Mass of carbon used per day 3 Ibs Life of vessel 15 years
Clearwell and backwash settling tanks Filter backwash rate 175 gpm Backwash cycles per day 2 cycles Backwash duration 10 minutes Settling tank hold time 2 days Settling tank volume required 7000 gallons Settling tank diameter 9 feet Settling tank height 157 feet Actual tank volume w freeboard 7480 gallons
20 deg Be = 30 soln = 92 N 94 gpd
Includes 1 ft freeboard
1 to 5 gpm per sq ft recommended in AWWA
FromAWWAp 615 Regenerate once per quarter Complicated task
Plan to alternate units can also run in series or parallel
Notes Plan to run in series
Based on use rate of 003 lb1000 gal from Calgon
Notes Assume 250 of forward flow rate
Includes 1 ft freeboard
Page 4 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Clearwell volume required Cleanvell tank diameter Clearwell tank height Actual tank volume w freeboard
Sludge storagethickening tank Mass of Fe removed
Mass of Mn removed
Mass of As removed
Misc other metals removed Total metals removed Cone of As in dry sludge Hazardous waste Settled sludge concentration Sludge specific gravity Settled sludge volume Sludge holding between presses Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard
Polymer day tank Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard Polymer dose Polymer use
Sludge press Pressed sludge concentration Sludge specific gravity
Pressed sludge volume Pressed sludge mass
1750 gallons 6 feet
93 feet 1960 gallons
38 Ibday 72 Ibday
23 Ibday
37 Ibday 01 Ibday 02 Ibday 11 Ibday
120 Ibday 980 mgkg Yes
20000 mgL 101 714 galday
7 days maximum
Includes bull=11 ft freeboard
Notes asFe as Fe(OH)3
as Mn includes Mn added with KMnO4
asMnO2
as As as As(OH) assumes 10 of Fe Mn total
Hazardous waste threshhold is 100 mgkg 2
5100 gallons 8 feet
145 feet 5480 gallons
30 gallons 2 feet
23 feet 50 gallons 10 mgL 22 Ibyear
400000 mgL 140
26 galday 300 Ibday
Includes 1 ft freeboard
Notes Polymer diluted in day tank dosed in-line w static mixer
Includes 1 ft freeboard
3 ftVday 45 tonmonth
Page 5 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Required press volume Length Width Height Initial press fill time AOD pump flow rate Compressed air flow rate HP required
Discharge piping Flow rate Desired flow velocity in piping East well line diameter Line length
4ft3
62ft 3 f t 41 ft
5 min 6 gpm
12 scfm 3hp
70 gpm 4 ftsec 3 inches
1070 feet
Assumes more than one press cycle per day as reqd Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI recommendation at peak 100 psi discharge (incorporates 2x correction for high viscosity) Assumes 4 cfmhp
Notes
Page 6 of 6
WOODARDlaquoSLCURRANEngineering bull Science bull Operations
CLIENT
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TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
$142000
$851000
$43000 $43000 $85000 $85000
$256000
$1107000
$5000 $40000 $27000
$72000 $7000
$14000
$93000
$509000
$125000
$1^51000
$60000
$129000
$3296000
Feasibility Study 31000
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TABLE 7-14 COST ESTIMATE ALTERNATIVE SML-5B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
$129000
$6919000
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TABLE 7-8 COST ESTIMATE ALTERNATIVE SML-4A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Pilot Scale Reid Study Installation of 17 Injection wells
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater ExtractionDischarge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS
In Situ Chemical Oxidation injection Injection Well Maintenance
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 5 YEARS)
$75000 $85000
$92000 $453000 $164000
$869000
$174000
$1043000
$52000 $52000
$104000 $104000
$312000
51355000
$391000 $20000
$411000 $41000 $82000
$534000
$2190000
TABLE 7-8 COST ESTIMATE ALTERNATIVE SML-4A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
Monitoring 2 Extraction Wells (Quarterly) Maintenance (Annual)
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (730 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-4A (1) Costs for upgrades to pump station on Route 112 not included
$5000 $27000
$32000 $3000
$6000
$41000
5509000
$125000
$1551000
$60000
5129000
$5734000
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TABLE 7-9 COST ESTIMATE ALTERNATIVE SML-4B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Pilot Scale Field Study Installation of 17 Injection wells
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater ExtractionTreatmentDischarge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS In Situ Chemical Oxidation injection Injection Well Maintenance
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 5 YEARS)
$75000 $85000
$92000 $100000 $443000 $11000
$676000
$1482000
$296000
$1778000
$89000 $89000
$178000 $178000
$534000
52312000
$391000 $20000
$411000 $41000 $82000
$534000
52190000
TABLE 7-9 COST ESTIMATE ALTERNATIVE SML-4B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Tretment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (730 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-4B
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
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Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
1 EQUIPMENT COSTS Item Quantity
(a) Extraction System Extraction Wells with Development (Level D) 2 Pumps with VFDs and Controls 2 Flow meters (2 magmeters) 2 Piezometers (Level D) 11 Piping (HOPE)
2 inch 1160
Subtotal Contractors Profit ( 10 of equipment cost) Extraction System Subtotal
(b) Treatment System
Flow meter (2 magmeter) Mix tank (400 gal) Mixer (1 HP) KMnO4 storage tank (3800 gal w sec cont) Mixer (3 HP) Chemical feed pump (120 gpd) NaOH storage tank (1 800 gal w sec cont) Chemical feed pump (70 gpd) Spare portable mixer (1 5 HP) Oxidation tank (2000 gal) Mixer (2 HP) Lamella separator (240 sq ft) 1 Transfer tank (400 gal) 1 Transfer and backwash pumps (2 HP) 3 Greensand Filters (3 ft diam) 2 HCI storage tank (2500 gal w sec cont) 1 Chemical feed pump (80 gpd) 1 Activated alumina colums (5 ft diam 120 cu ft) 2 GAC vessels (4 daim 1800 Ib GAC) 2 Backwash holding tank (7500 gal) 1 Clearwell (2000 gal) 1 Sludge holding tank (5500 gal) 1 Air Diaphragm Pumps - Press feed and sludge trans 2
Unit Unit Cost
ea $15000 ea $3300 ea $2300 ea $3000
LF $8
ea $2300 ea $770 ea $1500 ea $10120 ea $2300 ea $850 ea $6160 ea $790 ea $1800 ea $2800 ea $2200 ea $45000 ea $770 ea $3000 ea $8000 ea $9900 ea $790 ea $26800 ea $10296 ea $7600 ea $2800 ea $6300 ea $1000
Total Cost
$30000 $6600 $4600
$33000
$9280
$83480 $8350
$91830
$2300 $770
$1500 $10120
$2300 $850
$6160 $790
$1800 $2800 $2200
$45000 $770
$9000 $16000 $9900
$790 $53600 $20592
$7600 $2800 $6300 $2000
Pagel of 2
Saco Municipal Landfill Feasibility Study Saco Maine
Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
Air Compressor (3 HP) Polymer mixing tank (50 gal) Mixer (05 HP) Chemical feed pump- polymer (120 gpd) Static mixers - in-line 3 Sludge press (4 cu ft) Fork lift (for sludge bin and chemical handling) Building Costs (65L x 45W x 1 6H)
1111211
2925
ea ea ea ea ea ea ea
SF
$1700 $330 $1300 $850 $600 $24000 $23000 $50
$1700 $330 $1300 $850 $1200 $24000 $23000 $146250
Subtotal Contractors Profit ( 10 of equipment cost) Treatment System Subtotal
$402272 $40230
$442502
(c) Surface Water Discharge System 3 HOPE Pipe Infiltration Basin (150 x 150 x 5) Fence Swing Gate
10704167600
1
LF CY
LF Ea
$9 $10 $15 $400
$9630 $41667 $9000 $400
Subtotal Sales Tax ( 6 of equipment cost) Contractors Profit ( 10 of equipment cost) Discharge System Subtotal
$9630 $580 $960
$11170
EQUIPMENT SUBTOTAL $545502
2 INSTALLATION COSTS Instrumentation (15 of Equipment Subtotal) Electrical (15 of Equipment Subtotal) Process Piping (30 of Equipment Subtotal) HVAC System (7 of Equipment Subtotal) Labor (30 of Equipment Subtotal) Field Indirect (90 of Labor Cost)
$81825 $81825
$163651 $38185
$163651 $147286
INSTALLATION SUBTOTAL $676422
TOTAL CAPITAL COSTS Note Capital Costs are rounded to the nearest thousand
$1222000
Page 2 of 2
COST CATEGORIES
Labor (1 full-time operator) Electricity Other utilities (oil phone) Chemicals Maintenance 5 of capital Sludge disposal Monitoring OfficeSuppliesMiscdisposable items
TOTAL COST
ANNUAL COSTS
$73000 $9000 $5000
$47000 $27300 $13700 $17080 $5000
$197000
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM)
POWER ESTIMATE
2 Extraction pumps 2 Continuous mixers 4 Chemical Feed Pumps 1 Transfer Pump 1 Air Compressor HVACLights Miscellaneous
j bull bull H P shy
280300100200300300200
8 r HOURS ^ K W DAY
209 24 224 24 075 24 149 24 224 6 224 18 149 24
KWH DAY shy
50 54 18 36 13 40 36
ELECTRIC POWER SUMMARY HP KW
KWH DAY
KWH YEAR
TOTAL 1680 1253 247 90182
UNIT POWER COST SO 100 |
TOTAL ANNUAL POWER COST $9000 |
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Chemical Costs
QUANTITY CHEMICAL YEAR
Sodium Hydroxide (25) 30130 Hydrochloric Acid (30) 34488 Potassium Permanganate pure solid 6117 Polymer 22 GAC 1104
Subtotal Freight (10)
SUBTOTAL CHEMICALS
Sludge Costs
ITEM Wet Tonsyr 55 Unit Hauling and Tipping cost ($WT) $250 Sludge Disposal Cost (Syr) 513695 Assuming Sludge is disposed of as hazardous waste
UNITS
Gal Gal Lbs Lbs Lbs
UNIT COST
$040 $060 $160 $250 $300
ANNUAL COST
$12100 $20693 $9800
$100 $3300
$42693 $4269
$46962
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Monitoring Costs
1 Extraction Wells (Monitored Quarterly) No of Samples = 2
1 1
MSMSD =
4
Trip Blanks =Duplicates =
Eq Blanks = 0 Total =
Cost for VOC Analysis =Cost for Metals Analysis=
Monitoring Frequency =
Cost Subtotal =
0
$147 (for VOC Method 8260) $ 181 (for TAL Metals Method SW-846)
4 times per year
$5200 per year
2
QAQC =Total = 3
0
Cost for VOC Analysis =Cost for Metals Analysis =
Monitoring Frequency =
Cost Subtotal =
Total Cost =
Treatment System Sampling (Monthly) No of Samples= 3
$150 (for VOC Method 8260) $ 180 (for TAL Metals Method S W-846)
12 times per year
511880 per year
$17080 per year
Influent Criteria Flow r^70gpm Mn --li7 mgL As Fe Jgt 45 mgL pH ^-61 units
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Source 0101 MOD Modflow modelling by JRH w 15 safety factor
Average of wells 95-4SAB and 97-14S-1 and 2 shyAverage of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB
Alkalinity 3pmgLasCaCO3 Average of wells 95-4SAB and 97-14S-1 and 2 Benzene ^2uc Average of wells 95-4SAB
Effluent Criteria Mn 084 mgL As 005 mgL Benzene 5 ugL
Assumptions All metals in reduced state Linear titration curve between pH 45 and 105
Unit Processes Wells pumps and piping KMnO4 and NaOH rapid mix addition Oxidation tank w mixer Lamella inclined plate separator Transfer tank and pumps Manganese greensand filters HCI addition Activated alumina ion exchange Granular activated carbon vessels Backwash tank Sludge thickening tank Polymer mixing tank Sludge press Discharge piping
Wells pumps and piping Desired flow velocity in piping East well flow East well line diameter
Function Deliver groundwater to treatment Oxidize Fe Mn As pH adjust to 80 Oxidize Fe Mn As pH adjust to 80 Remove majority of Fe some Mn and As Shift from gravity to pressure operation Remove Fe Mn to less than 05 ppm Adjust pH to 60 Remove As to less than 30 ppb Remove VOCs Collect and settle backwash water to minimize volume Mix sludge with polymer for enhanced dewatering Prepare polymer for mixing with sludge Press sludge for disposal Convey clean water to discharge point
Notes 4 ftsec
23 gpm 2 inches
Page 1 of 6
Saco Landfill Groundwater Pump amp Treat System
Line length Depth to screen midpoint Additional head required Total head required Pump size required West well flow West well line diameter Line length Depth to screen midpoint Additional head required Total head required Pump size required
KMnO4 and NaOH and caustic Mix tank residence time Mix tank volume Tank diameter Tank height Actual tank volume w freeboard Dose KMnO4 required
KMnO4 solution strength
KMnO4 addition rate Desired storage time KMnO4 storage volume reqd
KMnO4 Tank diameter
KMnO4 tank height Actual tank volume w freeboard Desired pH Alk per pH unit (as CaCO3) Alkalinity lost in oxidation Total alkalinity required NaOH solution strength NaOH addition rate Desired storage time NaOH storage volume reqd NaOH tank diameter NaOH tank height Actual tank volume w freeboard
Conceptual Design 580 feet 60 feet 44to76bgs
50^ feet 25 feet elevation difference + 10 psi excess 110 feet 11 hp 47 gpm
2 inches 580 feet 32 feet 18to46bgs 50 feet 82 feet 17hp
addition Notes 5 mm Reasonable time for stable pH control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
57 mgL Dose 094 Iblb Fe 192 Iblb Mn 2 Iblb As
50000 mgL
008 gpm 116 gpd 17 IbMnday
30 days 3500 gallons
7 feet
131 feet Includes 1 ft freeboard 3790 gallons
80 units 177 mgL 35 meq 15 meq 149 Ib as CaCO3lb Fe 121 Iblb Mn 2 Iblb As 61 meq 75 N 25 (ww) NaOH approx = 75N
006 gpm 83 gpd 30 days
2500 gallons 7 feet
97 feet Includes 1 ft freeboard 2790 gallons
Page 2 of 6
Saco Landfill Ground water Pump amp Treat System
Oxidation tank Oxidation tank residence time Oxidation tank volume Tank diameter Tank height Actual tank volume w freeboard
Lamella inclined plate separator
Surface loading rate
Required surface area
Unit size Number of units Approx height Approx length Approx width
Transfer tank and pumps Transfer tank residence time Transfer tank volume Tank diameter Tank height Actual tank volume w freeboard Pump capacity Pump flow Pump horsepower
Manganese greensand filters
Surface loading rate
Required surface area Required diameter
Unit size provided Diameter provided Number of units
Activated alumina ion exchange Desired pH for act alumina HC1 required to offset NaOH
Conceptual Design Notes
25 min Reaction time of 5 to 30 minutes suggested in AWWA 1800 gallons
6 feet 95 feet Includes 1 ft freeboard
2010 gallons
04 gpmfr 04 to 06 gpmsq ft recommended by Parkson
175ft2
240ft2 Unit sizes of 240480 740 and 1150 sq ft available 1 unit
13 feet Dimensions from Parkson 11 feet 6 feet
Notes 5 min Reasonable time for stable pump control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
70 ft head 30 psi 70 gpm
21 HP
3 gpmft2 3 to 5 gpm per sq ft recommended in AWWA
23 ft2
27ft
28ft2
30ft 2 units Plan to alternate units can also run in series or parallel
Notes 60 units 61 meq
Page 3 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
HC1 required to achieve setpoint 25 meq Total acidity required 86 meq HCI solution strength 9NHC1 addition rate 007 gpmDesired storage time - 30 days HCI storage volume reqd 2900 gallons HCI tank diameter 7 feet HCI tank height 111 feet Actual tank volume w freeboard 3190 gallons
Act alum surface loading rate 1 gpmft2
Required surface area 70ft2
Required diameter 47ft
Unit size provided 79ft2
Diameter provided 50ft EBCT required 50 min Volume to satisfy EBCT 47 cu ft Bed volumes to breakthrough 10000 volumes Desired time to breakthrough 90 days Bed vol reqd for breakthrough 121 cu ft Controlling bed volume 121 cu ft Number of units 2 units
Granular Activated Carbon Carbon vessels required 2 units Flow rate 700 gpm Min vessel diameter 48 inches Mass of carbon in vessel 1700 Ibs Mass of carbon used per day 3 Ibs Life of vessel 15 years
Clearwell and backwash settling tanks Filter backwash rate 175 gpm Backwash cycles per day 2 cycles Backwash duration 10 minutes Settling tank hold time 2 days Settling tank volume required 7000 gallons Settling tank diameter 9 feet Settling tank height 157 feet Actual tank volume w freeboard 7480 gallons
20 deg Be = 30 soln = 92 N 94 gpd
Includes 1 ft freeboard
1 to 5 gpm per sq ft recommended in AWWA
FromAWWAp 615 Regenerate once per quarter Complicated task
Plan to alternate units can also run in series or parallel
Notes Plan to run in series
Based on use rate of 003 lb1000 gal from Calgon
Notes Assume 250 of forward flow rate
Includes 1 ft freeboard
Page 4 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Clearwell volume required Cleanvell tank diameter Clearwell tank height Actual tank volume w freeboard
Sludge storagethickening tank Mass of Fe removed
Mass of Mn removed
Mass of As removed
Misc other metals removed Total metals removed Cone of As in dry sludge Hazardous waste Settled sludge concentration Sludge specific gravity Settled sludge volume Sludge holding between presses Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard
Polymer day tank Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard Polymer dose Polymer use
Sludge press Pressed sludge concentration Sludge specific gravity
Pressed sludge volume Pressed sludge mass
1750 gallons 6 feet
93 feet 1960 gallons
38 Ibday 72 Ibday
23 Ibday
37 Ibday 01 Ibday 02 Ibday 11 Ibday
120 Ibday 980 mgkg Yes
20000 mgL 101 714 galday
7 days maximum
Includes bull=11 ft freeboard
Notes asFe as Fe(OH)3
as Mn includes Mn added with KMnO4
asMnO2
as As as As(OH) assumes 10 of Fe Mn total
Hazardous waste threshhold is 100 mgkg 2
5100 gallons 8 feet
145 feet 5480 gallons
30 gallons 2 feet
23 feet 50 gallons 10 mgL 22 Ibyear
400000 mgL 140
26 galday 300 Ibday
Includes 1 ft freeboard
Notes Polymer diluted in day tank dosed in-line w static mixer
Includes 1 ft freeboard
3 ftVday 45 tonmonth
Page 5 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Required press volume Length Width Height Initial press fill time AOD pump flow rate Compressed air flow rate HP required
Discharge piping Flow rate Desired flow velocity in piping East well line diameter Line length
4ft3
62ft 3 f t 41 ft
5 min 6 gpm
12 scfm 3hp
70 gpm 4 ftsec 3 inches
1070 feet
Assumes more than one press cycle per day as reqd Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI recommendation at peak 100 psi discharge (incorporates 2x correction for high viscosity) Assumes 4 cfmhp
Notes
Page 6 of 6
WOODARDlaquoSLCURRANEngineering bull Science bull Operations
CLIENT
PROJECT H^r^i i^d-ftli
41 HUTCHINS DRIVE DESIGNEDESIGNEDD BBYY Lbull ~~T7lSdltU t tvesampt DATE
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TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
$142000
$851000
$43000 $43000 $85000 $85000
$256000
$1107000
$5000 $40000 $27000
$72000 $7000
$14000
$93000
$509000
$125000
$1^51000
$60000
$129000
$3296000
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TABLE 7-14 COST ESTIMATE ALTERNATIVE SML-5B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
$129000
$6919000
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TABLE 7-8 COST ESTIMATE ALTERNATIVE SML-4A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Pilot Scale Reid Study Installation of 17 Injection wells
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater ExtractionDischarge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS
In Situ Chemical Oxidation injection Injection Well Maintenance
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 5 YEARS)
$75000 $85000
$92000 $453000 $164000
$869000
$174000
$1043000
$52000 $52000
$104000 $104000
$312000
51355000
$391000 $20000
$411000 $41000 $82000
$534000
$2190000
TABLE 7-8 COST ESTIMATE ALTERNATIVE SML-4A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
Monitoring 2 Extraction Wells (Quarterly) Maintenance (Annual)
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (730 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-4A (1) Costs for upgrades to pump station on Route 112 not included
$5000 $27000
$32000 $3000
$6000
$41000
5509000
$125000
$1551000
$60000
5129000
$5734000
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TABLE 7-9 COST ESTIMATE ALTERNATIVE SML-4B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Pilot Scale Field Study Installation of 17 Injection wells
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater ExtractionTreatmentDischarge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS In Situ Chemical Oxidation injection Injection Well Maintenance
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 5 YEARS)
$75000 $85000
$92000 $100000 $443000 $11000
$676000
$1482000
$296000
$1778000
$89000 $89000
$178000 $178000
$534000
52312000
$391000 $20000
$411000 $41000 $82000
$534000
52190000
TABLE 7-9 COST ESTIMATE ALTERNATIVE SML-4B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Tretment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (730 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-4B
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
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Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
1 EQUIPMENT COSTS Item Quantity
(a) Extraction System Extraction Wells with Development (Level D) 2 Pumps with VFDs and Controls 2 Flow meters (2 magmeters) 2 Piezometers (Level D) 11 Piping (HOPE)
2 inch 1160
Subtotal Contractors Profit ( 10 of equipment cost) Extraction System Subtotal
(b) Treatment System
Flow meter (2 magmeter) Mix tank (400 gal) Mixer (1 HP) KMnO4 storage tank (3800 gal w sec cont) Mixer (3 HP) Chemical feed pump (120 gpd) NaOH storage tank (1 800 gal w sec cont) Chemical feed pump (70 gpd) Spare portable mixer (1 5 HP) Oxidation tank (2000 gal) Mixer (2 HP) Lamella separator (240 sq ft) 1 Transfer tank (400 gal) 1 Transfer and backwash pumps (2 HP) 3 Greensand Filters (3 ft diam) 2 HCI storage tank (2500 gal w sec cont) 1 Chemical feed pump (80 gpd) 1 Activated alumina colums (5 ft diam 120 cu ft) 2 GAC vessels (4 daim 1800 Ib GAC) 2 Backwash holding tank (7500 gal) 1 Clearwell (2000 gal) 1 Sludge holding tank (5500 gal) 1 Air Diaphragm Pumps - Press feed and sludge trans 2
Unit Unit Cost
ea $15000 ea $3300 ea $2300 ea $3000
LF $8
ea $2300 ea $770 ea $1500 ea $10120 ea $2300 ea $850 ea $6160 ea $790 ea $1800 ea $2800 ea $2200 ea $45000 ea $770 ea $3000 ea $8000 ea $9900 ea $790 ea $26800 ea $10296 ea $7600 ea $2800 ea $6300 ea $1000
Total Cost
$30000 $6600 $4600
$33000
$9280
$83480 $8350
$91830
$2300 $770
$1500 $10120
$2300 $850
$6160 $790
$1800 $2800 $2200
$45000 $770
$9000 $16000 $9900
$790 $53600 $20592
$7600 $2800 $6300 $2000
Pagel of 2
Saco Municipal Landfill Feasibility Study Saco Maine
Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
Air Compressor (3 HP) Polymer mixing tank (50 gal) Mixer (05 HP) Chemical feed pump- polymer (120 gpd) Static mixers - in-line 3 Sludge press (4 cu ft) Fork lift (for sludge bin and chemical handling) Building Costs (65L x 45W x 1 6H)
1111211
2925
ea ea ea ea ea ea ea
SF
$1700 $330 $1300 $850 $600 $24000 $23000 $50
$1700 $330 $1300 $850 $1200 $24000 $23000 $146250
Subtotal Contractors Profit ( 10 of equipment cost) Treatment System Subtotal
$402272 $40230
$442502
(c) Surface Water Discharge System 3 HOPE Pipe Infiltration Basin (150 x 150 x 5) Fence Swing Gate
10704167600
1
LF CY
LF Ea
$9 $10 $15 $400
$9630 $41667 $9000 $400
Subtotal Sales Tax ( 6 of equipment cost) Contractors Profit ( 10 of equipment cost) Discharge System Subtotal
$9630 $580 $960
$11170
EQUIPMENT SUBTOTAL $545502
2 INSTALLATION COSTS Instrumentation (15 of Equipment Subtotal) Electrical (15 of Equipment Subtotal) Process Piping (30 of Equipment Subtotal) HVAC System (7 of Equipment Subtotal) Labor (30 of Equipment Subtotal) Field Indirect (90 of Labor Cost)
$81825 $81825
$163651 $38185
$163651 $147286
INSTALLATION SUBTOTAL $676422
TOTAL CAPITAL COSTS Note Capital Costs are rounded to the nearest thousand
$1222000
Page 2 of 2
COST CATEGORIES
Labor (1 full-time operator) Electricity Other utilities (oil phone) Chemicals Maintenance 5 of capital Sludge disposal Monitoring OfficeSuppliesMiscdisposable items
TOTAL COST
ANNUAL COSTS
$73000 $9000 $5000
$47000 $27300 $13700 $17080 $5000
$197000
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM)
POWER ESTIMATE
2 Extraction pumps 2 Continuous mixers 4 Chemical Feed Pumps 1 Transfer Pump 1 Air Compressor HVACLights Miscellaneous
j bull bull H P shy
280300100200300300200
8 r HOURS ^ K W DAY
209 24 224 24 075 24 149 24 224 6 224 18 149 24
KWH DAY shy
50 54 18 36 13 40 36
ELECTRIC POWER SUMMARY HP KW
KWH DAY
KWH YEAR
TOTAL 1680 1253 247 90182
UNIT POWER COST SO 100 |
TOTAL ANNUAL POWER COST $9000 |
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Chemical Costs
QUANTITY CHEMICAL YEAR
Sodium Hydroxide (25) 30130 Hydrochloric Acid (30) 34488 Potassium Permanganate pure solid 6117 Polymer 22 GAC 1104
Subtotal Freight (10)
SUBTOTAL CHEMICALS
Sludge Costs
ITEM Wet Tonsyr 55 Unit Hauling and Tipping cost ($WT) $250 Sludge Disposal Cost (Syr) 513695 Assuming Sludge is disposed of as hazardous waste
UNITS
Gal Gal Lbs Lbs Lbs
UNIT COST
$040 $060 $160 $250 $300
ANNUAL COST
$12100 $20693 $9800
$100 $3300
$42693 $4269
$46962
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Monitoring Costs
1 Extraction Wells (Monitored Quarterly) No of Samples = 2
1 1
MSMSD =
4
Trip Blanks =Duplicates =
Eq Blanks = 0 Total =
Cost for VOC Analysis =Cost for Metals Analysis=
Monitoring Frequency =
Cost Subtotal =
0
$147 (for VOC Method 8260) $ 181 (for TAL Metals Method SW-846)
4 times per year
$5200 per year
2
QAQC =Total = 3
0
Cost for VOC Analysis =Cost for Metals Analysis =
Monitoring Frequency =
Cost Subtotal =
Total Cost =
Treatment System Sampling (Monthly) No of Samples= 3
$150 (for VOC Method 8260) $ 180 (for TAL Metals Method S W-846)
12 times per year
511880 per year
$17080 per year
Influent Criteria Flow r^70gpm Mn --li7 mgL As Fe Jgt 45 mgL pH ^-61 units
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Source 0101 MOD Modflow modelling by JRH w 15 safety factor
Average of wells 95-4SAB and 97-14S-1 and 2 shyAverage of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB
Alkalinity 3pmgLasCaCO3 Average of wells 95-4SAB and 97-14S-1 and 2 Benzene ^2uc Average of wells 95-4SAB
Effluent Criteria Mn 084 mgL As 005 mgL Benzene 5 ugL
Assumptions All metals in reduced state Linear titration curve between pH 45 and 105
Unit Processes Wells pumps and piping KMnO4 and NaOH rapid mix addition Oxidation tank w mixer Lamella inclined plate separator Transfer tank and pumps Manganese greensand filters HCI addition Activated alumina ion exchange Granular activated carbon vessels Backwash tank Sludge thickening tank Polymer mixing tank Sludge press Discharge piping
Wells pumps and piping Desired flow velocity in piping East well flow East well line diameter
Function Deliver groundwater to treatment Oxidize Fe Mn As pH adjust to 80 Oxidize Fe Mn As pH adjust to 80 Remove majority of Fe some Mn and As Shift from gravity to pressure operation Remove Fe Mn to less than 05 ppm Adjust pH to 60 Remove As to less than 30 ppb Remove VOCs Collect and settle backwash water to minimize volume Mix sludge with polymer for enhanced dewatering Prepare polymer for mixing with sludge Press sludge for disposal Convey clean water to discharge point
Notes 4 ftsec
23 gpm 2 inches
Page 1 of 6
Saco Landfill Groundwater Pump amp Treat System
Line length Depth to screen midpoint Additional head required Total head required Pump size required West well flow West well line diameter Line length Depth to screen midpoint Additional head required Total head required Pump size required
KMnO4 and NaOH and caustic Mix tank residence time Mix tank volume Tank diameter Tank height Actual tank volume w freeboard Dose KMnO4 required
KMnO4 solution strength
KMnO4 addition rate Desired storage time KMnO4 storage volume reqd
KMnO4 Tank diameter
KMnO4 tank height Actual tank volume w freeboard Desired pH Alk per pH unit (as CaCO3) Alkalinity lost in oxidation Total alkalinity required NaOH solution strength NaOH addition rate Desired storage time NaOH storage volume reqd NaOH tank diameter NaOH tank height Actual tank volume w freeboard
Conceptual Design 580 feet 60 feet 44to76bgs
50^ feet 25 feet elevation difference + 10 psi excess 110 feet 11 hp 47 gpm
2 inches 580 feet 32 feet 18to46bgs 50 feet 82 feet 17hp
addition Notes 5 mm Reasonable time for stable pH control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
57 mgL Dose 094 Iblb Fe 192 Iblb Mn 2 Iblb As
50000 mgL
008 gpm 116 gpd 17 IbMnday
30 days 3500 gallons
7 feet
131 feet Includes 1 ft freeboard 3790 gallons
80 units 177 mgL 35 meq 15 meq 149 Ib as CaCO3lb Fe 121 Iblb Mn 2 Iblb As 61 meq 75 N 25 (ww) NaOH approx = 75N
006 gpm 83 gpd 30 days
2500 gallons 7 feet
97 feet Includes 1 ft freeboard 2790 gallons
Page 2 of 6
Saco Landfill Ground water Pump amp Treat System
Oxidation tank Oxidation tank residence time Oxidation tank volume Tank diameter Tank height Actual tank volume w freeboard
Lamella inclined plate separator
Surface loading rate
Required surface area
Unit size Number of units Approx height Approx length Approx width
Transfer tank and pumps Transfer tank residence time Transfer tank volume Tank diameter Tank height Actual tank volume w freeboard Pump capacity Pump flow Pump horsepower
Manganese greensand filters
Surface loading rate
Required surface area Required diameter
Unit size provided Diameter provided Number of units
Activated alumina ion exchange Desired pH for act alumina HC1 required to offset NaOH
Conceptual Design Notes
25 min Reaction time of 5 to 30 minutes suggested in AWWA 1800 gallons
6 feet 95 feet Includes 1 ft freeboard
2010 gallons
04 gpmfr 04 to 06 gpmsq ft recommended by Parkson
175ft2
240ft2 Unit sizes of 240480 740 and 1150 sq ft available 1 unit
13 feet Dimensions from Parkson 11 feet 6 feet
Notes 5 min Reasonable time for stable pump control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
70 ft head 30 psi 70 gpm
21 HP
3 gpmft2 3 to 5 gpm per sq ft recommended in AWWA
23 ft2
27ft
28ft2
30ft 2 units Plan to alternate units can also run in series or parallel
Notes 60 units 61 meq
Page 3 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
HC1 required to achieve setpoint 25 meq Total acidity required 86 meq HCI solution strength 9NHC1 addition rate 007 gpmDesired storage time - 30 days HCI storage volume reqd 2900 gallons HCI tank diameter 7 feet HCI tank height 111 feet Actual tank volume w freeboard 3190 gallons
Act alum surface loading rate 1 gpmft2
Required surface area 70ft2
Required diameter 47ft
Unit size provided 79ft2
Diameter provided 50ft EBCT required 50 min Volume to satisfy EBCT 47 cu ft Bed volumes to breakthrough 10000 volumes Desired time to breakthrough 90 days Bed vol reqd for breakthrough 121 cu ft Controlling bed volume 121 cu ft Number of units 2 units
Granular Activated Carbon Carbon vessels required 2 units Flow rate 700 gpm Min vessel diameter 48 inches Mass of carbon in vessel 1700 Ibs Mass of carbon used per day 3 Ibs Life of vessel 15 years
Clearwell and backwash settling tanks Filter backwash rate 175 gpm Backwash cycles per day 2 cycles Backwash duration 10 minutes Settling tank hold time 2 days Settling tank volume required 7000 gallons Settling tank diameter 9 feet Settling tank height 157 feet Actual tank volume w freeboard 7480 gallons
20 deg Be = 30 soln = 92 N 94 gpd
Includes 1 ft freeboard
1 to 5 gpm per sq ft recommended in AWWA
FromAWWAp 615 Regenerate once per quarter Complicated task
Plan to alternate units can also run in series or parallel
Notes Plan to run in series
Based on use rate of 003 lb1000 gal from Calgon
Notes Assume 250 of forward flow rate
Includes 1 ft freeboard
Page 4 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Clearwell volume required Cleanvell tank diameter Clearwell tank height Actual tank volume w freeboard
Sludge storagethickening tank Mass of Fe removed
Mass of Mn removed
Mass of As removed
Misc other metals removed Total metals removed Cone of As in dry sludge Hazardous waste Settled sludge concentration Sludge specific gravity Settled sludge volume Sludge holding between presses Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard
Polymer day tank Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard Polymer dose Polymer use
Sludge press Pressed sludge concentration Sludge specific gravity
Pressed sludge volume Pressed sludge mass
1750 gallons 6 feet
93 feet 1960 gallons
38 Ibday 72 Ibday
23 Ibday
37 Ibday 01 Ibday 02 Ibday 11 Ibday
120 Ibday 980 mgkg Yes
20000 mgL 101 714 galday
7 days maximum
Includes bull=11 ft freeboard
Notes asFe as Fe(OH)3
as Mn includes Mn added with KMnO4
asMnO2
as As as As(OH) assumes 10 of Fe Mn total
Hazardous waste threshhold is 100 mgkg 2
5100 gallons 8 feet
145 feet 5480 gallons
30 gallons 2 feet
23 feet 50 gallons 10 mgL 22 Ibyear
400000 mgL 140
26 galday 300 Ibday
Includes 1 ft freeboard
Notes Polymer diluted in day tank dosed in-line w static mixer
Includes 1 ft freeboard
3 ftVday 45 tonmonth
Page 5 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Required press volume Length Width Height Initial press fill time AOD pump flow rate Compressed air flow rate HP required
Discharge piping Flow rate Desired flow velocity in piping East well line diameter Line length
4ft3
62ft 3 f t 41 ft
5 min 6 gpm
12 scfm 3hp
70 gpm 4 ftsec 3 inches
1070 feet
Assumes more than one press cycle per day as reqd Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI recommendation at peak 100 psi discharge (incorporates 2x correction for high viscosity) Assumes 4 cfmhp
Notes
Page 6 of 6
WOODARDlaquoSLCURRANEngineering bull Science bull Operations
CLIENT
PROJECT H^r^i i^d-ftli
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TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
$142000
$851000
$43000 $43000 $85000 $85000
$256000
$1107000
$5000 $40000 $27000
$72000 $7000
$14000
$93000
$509000
$125000
$1^51000
$60000
$129000
$3296000
Feasibility Study 31000
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(TREATMENTON-SITE DISCHARGE)
FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
$129000
$6919000
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TABLE 7-8 COST ESTIMATE ALTERNATIVE SML-4A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Pilot Scale Reid Study Installation of 17 Injection wells
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater ExtractionDischarge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS
In Situ Chemical Oxidation injection Injection Well Maintenance
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 5 YEARS)
$75000 $85000
$92000 $453000 $164000
$869000
$174000
$1043000
$52000 $52000
$104000 $104000
$312000
51355000
$391000 $20000
$411000 $41000 $82000
$534000
$2190000
TABLE 7-8 COST ESTIMATE ALTERNATIVE SML-4A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
Monitoring 2 Extraction Wells (Quarterly) Maintenance (Annual)
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (730 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-4A (1) Costs for upgrades to pump station on Route 112 not included
$5000 $27000
$32000 $3000
$6000
$41000
5509000
$125000
$1551000
$60000
5129000
$5734000
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TABLE 7-9 COST ESTIMATE ALTERNATIVE SML-4B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Pilot Scale Field Study Installation of 17 Injection wells
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater ExtractionTreatmentDischarge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS In Situ Chemical Oxidation injection Injection Well Maintenance
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 5 YEARS)
$75000 $85000
$92000 $100000 $443000 $11000
$676000
$1482000
$296000
$1778000
$89000 $89000
$178000 $178000
$534000
52312000
$391000 $20000
$411000 $41000 $82000
$534000
52190000
TABLE 7-9 COST ESTIMATE ALTERNATIVE SML-4B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Tretment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (730 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-4B
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
S129000
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Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
1 EQUIPMENT COSTS Item Quantity
(a) Extraction System Extraction Wells with Development (Level D) 2 Pumps with VFDs and Controls 2 Flow meters (2 magmeters) 2 Piezometers (Level D) 11 Piping (HOPE)
2 inch 1160
Subtotal Contractors Profit ( 10 of equipment cost) Extraction System Subtotal
(b) Treatment System
Flow meter (2 magmeter) Mix tank (400 gal) Mixer (1 HP) KMnO4 storage tank (3800 gal w sec cont) Mixer (3 HP) Chemical feed pump (120 gpd) NaOH storage tank (1 800 gal w sec cont) Chemical feed pump (70 gpd) Spare portable mixer (1 5 HP) Oxidation tank (2000 gal) Mixer (2 HP) Lamella separator (240 sq ft) 1 Transfer tank (400 gal) 1 Transfer and backwash pumps (2 HP) 3 Greensand Filters (3 ft diam) 2 HCI storage tank (2500 gal w sec cont) 1 Chemical feed pump (80 gpd) 1 Activated alumina colums (5 ft diam 120 cu ft) 2 GAC vessels (4 daim 1800 Ib GAC) 2 Backwash holding tank (7500 gal) 1 Clearwell (2000 gal) 1 Sludge holding tank (5500 gal) 1 Air Diaphragm Pumps - Press feed and sludge trans 2
Unit Unit Cost
ea $15000 ea $3300 ea $2300 ea $3000
LF $8
ea $2300 ea $770 ea $1500 ea $10120 ea $2300 ea $850 ea $6160 ea $790 ea $1800 ea $2800 ea $2200 ea $45000 ea $770 ea $3000 ea $8000 ea $9900 ea $790 ea $26800 ea $10296 ea $7600 ea $2800 ea $6300 ea $1000
Total Cost
$30000 $6600 $4600
$33000
$9280
$83480 $8350
$91830
$2300 $770
$1500 $10120
$2300 $850
$6160 $790
$1800 $2800 $2200
$45000 $770
$9000 $16000 $9900
$790 $53600 $20592
$7600 $2800 $6300 $2000
Pagel of 2
Saco Municipal Landfill Feasibility Study Saco Maine
Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
Air Compressor (3 HP) Polymer mixing tank (50 gal) Mixer (05 HP) Chemical feed pump- polymer (120 gpd) Static mixers - in-line 3 Sludge press (4 cu ft) Fork lift (for sludge bin and chemical handling) Building Costs (65L x 45W x 1 6H)
1111211
2925
ea ea ea ea ea ea ea
SF
$1700 $330 $1300 $850 $600 $24000 $23000 $50
$1700 $330 $1300 $850 $1200 $24000 $23000 $146250
Subtotal Contractors Profit ( 10 of equipment cost) Treatment System Subtotal
$402272 $40230
$442502
(c) Surface Water Discharge System 3 HOPE Pipe Infiltration Basin (150 x 150 x 5) Fence Swing Gate
10704167600
1
LF CY
LF Ea
$9 $10 $15 $400
$9630 $41667 $9000 $400
Subtotal Sales Tax ( 6 of equipment cost) Contractors Profit ( 10 of equipment cost) Discharge System Subtotal
$9630 $580 $960
$11170
EQUIPMENT SUBTOTAL $545502
2 INSTALLATION COSTS Instrumentation (15 of Equipment Subtotal) Electrical (15 of Equipment Subtotal) Process Piping (30 of Equipment Subtotal) HVAC System (7 of Equipment Subtotal) Labor (30 of Equipment Subtotal) Field Indirect (90 of Labor Cost)
$81825 $81825
$163651 $38185
$163651 $147286
INSTALLATION SUBTOTAL $676422
TOTAL CAPITAL COSTS Note Capital Costs are rounded to the nearest thousand
$1222000
Page 2 of 2
COST CATEGORIES
Labor (1 full-time operator) Electricity Other utilities (oil phone) Chemicals Maintenance 5 of capital Sludge disposal Monitoring OfficeSuppliesMiscdisposable items
TOTAL COST
ANNUAL COSTS
$73000 $9000 $5000
$47000 $27300 $13700 $17080 $5000
$197000
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM)
POWER ESTIMATE
2 Extraction pumps 2 Continuous mixers 4 Chemical Feed Pumps 1 Transfer Pump 1 Air Compressor HVACLights Miscellaneous
j bull bull H P shy
280300100200300300200
8 r HOURS ^ K W DAY
209 24 224 24 075 24 149 24 224 6 224 18 149 24
KWH DAY shy
50 54 18 36 13 40 36
ELECTRIC POWER SUMMARY HP KW
KWH DAY
KWH YEAR
TOTAL 1680 1253 247 90182
UNIT POWER COST SO 100 |
TOTAL ANNUAL POWER COST $9000 |
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Chemical Costs
QUANTITY CHEMICAL YEAR
Sodium Hydroxide (25) 30130 Hydrochloric Acid (30) 34488 Potassium Permanganate pure solid 6117 Polymer 22 GAC 1104
Subtotal Freight (10)
SUBTOTAL CHEMICALS
Sludge Costs
ITEM Wet Tonsyr 55 Unit Hauling and Tipping cost ($WT) $250 Sludge Disposal Cost (Syr) 513695 Assuming Sludge is disposed of as hazardous waste
UNITS
Gal Gal Lbs Lbs Lbs
UNIT COST
$040 $060 $160 $250 $300
ANNUAL COST
$12100 $20693 $9800
$100 $3300
$42693 $4269
$46962
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Monitoring Costs
1 Extraction Wells (Monitored Quarterly) No of Samples = 2
1 1
MSMSD =
4
Trip Blanks =Duplicates =
Eq Blanks = 0 Total =
Cost for VOC Analysis =Cost for Metals Analysis=
Monitoring Frequency =
Cost Subtotal =
0
$147 (for VOC Method 8260) $ 181 (for TAL Metals Method SW-846)
4 times per year
$5200 per year
2
QAQC =Total = 3
0
Cost for VOC Analysis =Cost for Metals Analysis =
Monitoring Frequency =
Cost Subtotal =
Total Cost =
Treatment System Sampling (Monthly) No of Samples= 3
$150 (for VOC Method 8260) $ 180 (for TAL Metals Method S W-846)
12 times per year
511880 per year
$17080 per year
Influent Criteria Flow r^70gpm Mn --li7 mgL As Fe Jgt 45 mgL pH ^-61 units
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Source 0101 MOD Modflow modelling by JRH w 15 safety factor
Average of wells 95-4SAB and 97-14S-1 and 2 shyAverage of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB
Alkalinity 3pmgLasCaCO3 Average of wells 95-4SAB and 97-14S-1 and 2 Benzene ^2uc Average of wells 95-4SAB
Effluent Criteria Mn 084 mgL As 005 mgL Benzene 5 ugL
Assumptions All metals in reduced state Linear titration curve between pH 45 and 105
Unit Processes Wells pumps and piping KMnO4 and NaOH rapid mix addition Oxidation tank w mixer Lamella inclined plate separator Transfer tank and pumps Manganese greensand filters HCI addition Activated alumina ion exchange Granular activated carbon vessels Backwash tank Sludge thickening tank Polymer mixing tank Sludge press Discharge piping
Wells pumps and piping Desired flow velocity in piping East well flow East well line diameter
Function Deliver groundwater to treatment Oxidize Fe Mn As pH adjust to 80 Oxidize Fe Mn As pH adjust to 80 Remove majority of Fe some Mn and As Shift from gravity to pressure operation Remove Fe Mn to less than 05 ppm Adjust pH to 60 Remove As to less than 30 ppb Remove VOCs Collect and settle backwash water to minimize volume Mix sludge with polymer for enhanced dewatering Prepare polymer for mixing with sludge Press sludge for disposal Convey clean water to discharge point
Notes 4 ftsec
23 gpm 2 inches
Page 1 of 6
Saco Landfill Groundwater Pump amp Treat System
Line length Depth to screen midpoint Additional head required Total head required Pump size required West well flow West well line diameter Line length Depth to screen midpoint Additional head required Total head required Pump size required
KMnO4 and NaOH and caustic Mix tank residence time Mix tank volume Tank diameter Tank height Actual tank volume w freeboard Dose KMnO4 required
KMnO4 solution strength
KMnO4 addition rate Desired storage time KMnO4 storage volume reqd
KMnO4 Tank diameter
KMnO4 tank height Actual tank volume w freeboard Desired pH Alk per pH unit (as CaCO3) Alkalinity lost in oxidation Total alkalinity required NaOH solution strength NaOH addition rate Desired storage time NaOH storage volume reqd NaOH tank diameter NaOH tank height Actual tank volume w freeboard
Conceptual Design 580 feet 60 feet 44to76bgs
50^ feet 25 feet elevation difference + 10 psi excess 110 feet 11 hp 47 gpm
2 inches 580 feet 32 feet 18to46bgs 50 feet 82 feet 17hp
addition Notes 5 mm Reasonable time for stable pH control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
57 mgL Dose 094 Iblb Fe 192 Iblb Mn 2 Iblb As
50000 mgL
008 gpm 116 gpd 17 IbMnday
30 days 3500 gallons
7 feet
131 feet Includes 1 ft freeboard 3790 gallons
80 units 177 mgL 35 meq 15 meq 149 Ib as CaCO3lb Fe 121 Iblb Mn 2 Iblb As 61 meq 75 N 25 (ww) NaOH approx = 75N
006 gpm 83 gpd 30 days
2500 gallons 7 feet
97 feet Includes 1 ft freeboard 2790 gallons
Page 2 of 6
Saco Landfill Ground water Pump amp Treat System
Oxidation tank Oxidation tank residence time Oxidation tank volume Tank diameter Tank height Actual tank volume w freeboard
Lamella inclined plate separator
Surface loading rate
Required surface area
Unit size Number of units Approx height Approx length Approx width
Transfer tank and pumps Transfer tank residence time Transfer tank volume Tank diameter Tank height Actual tank volume w freeboard Pump capacity Pump flow Pump horsepower
Manganese greensand filters
Surface loading rate
Required surface area Required diameter
Unit size provided Diameter provided Number of units
Activated alumina ion exchange Desired pH for act alumina HC1 required to offset NaOH
Conceptual Design Notes
25 min Reaction time of 5 to 30 minutes suggested in AWWA 1800 gallons
6 feet 95 feet Includes 1 ft freeboard
2010 gallons
04 gpmfr 04 to 06 gpmsq ft recommended by Parkson
175ft2
240ft2 Unit sizes of 240480 740 and 1150 sq ft available 1 unit
13 feet Dimensions from Parkson 11 feet 6 feet
Notes 5 min Reasonable time for stable pump control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
70 ft head 30 psi 70 gpm
21 HP
3 gpmft2 3 to 5 gpm per sq ft recommended in AWWA
23 ft2
27ft
28ft2
30ft 2 units Plan to alternate units can also run in series or parallel
Notes 60 units 61 meq
Page 3 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
HC1 required to achieve setpoint 25 meq Total acidity required 86 meq HCI solution strength 9NHC1 addition rate 007 gpmDesired storage time - 30 days HCI storage volume reqd 2900 gallons HCI tank diameter 7 feet HCI tank height 111 feet Actual tank volume w freeboard 3190 gallons
Act alum surface loading rate 1 gpmft2
Required surface area 70ft2
Required diameter 47ft
Unit size provided 79ft2
Diameter provided 50ft EBCT required 50 min Volume to satisfy EBCT 47 cu ft Bed volumes to breakthrough 10000 volumes Desired time to breakthrough 90 days Bed vol reqd for breakthrough 121 cu ft Controlling bed volume 121 cu ft Number of units 2 units
Granular Activated Carbon Carbon vessels required 2 units Flow rate 700 gpm Min vessel diameter 48 inches Mass of carbon in vessel 1700 Ibs Mass of carbon used per day 3 Ibs Life of vessel 15 years
Clearwell and backwash settling tanks Filter backwash rate 175 gpm Backwash cycles per day 2 cycles Backwash duration 10 minutes Settling tank hold time 2 days Settling tank volume required 7000 gallons Settling tank diameter 9 feet Settling tank height 157 feet Actual tank volume w freeboard 7480 gallons
20 deg Be = 30 soln = 92 N 94 gpd
Includes 1 ft freeboard
1 to 5 gpm per sq ft recommended in AWWA
FromAWWAp 615 Regenerate once per quarter Complicated task
Plan to alternate units can also run in series or parallel
Notes Plan to run in series
Based on use rate of 003 lb1000 gal from Calgon
Notes Assume 250 of forward flow rate
Includes 1 ft freeboard
Page 4 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Clearwell volume required Cleanvell tank diameter Clearwell tank height Actual tank volume w freeboard
Sludge storagethickening tank Mass of Fe removed
Mass of Mn removed
Mass of As removed
Misc other metals removed Total metals removed Cone of As in dry sludge Hazardous waste Settled sludge concentration Sludge specific gravity Settled sludge volume Sludge holding between presses Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard
Polymer day tank Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard Polymer dose Polymer use
Sludge press Pressed sludge concentration Sludge specific gravity
Pressed sludge volume Pressed sludge mass
1750 gallons 6 feet
93 feet 1960 gallons
38 Ibday 72 Ibday
23 Ibday
37 Ibday 01 Ibday 02 Ibday 11 Ibday
120 Ibday 980 mgkg Yes
20000 mgL 101 714 galday
7 days maximum
Includes bull=11 ft freeboard
Notes asFe as Fe(OH)3
as Mn includes Mn added with KMnO4
asMnO2
as As as As(OH) assumes 10 of Fe Mn total
Hazardous waste threshhold is 100 mgkg 2
5100 gallons 8 feet
145 feet 5480 gallons
30 gallons 2 feet
23 feet 50 gallons 10 mgL 22 Ibyear
400000 mgL 140
26 galday 300 Ibday
Includes 1 ft freeboard
Notes Polymer diluted in day tank dosed in-line w static mixer
Includes 1 ft freeboard
3 ftVday 45 tonmonth
Page 5 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Required press volume Length Width Height Initial press fill time AOD pump flow rate Compressed air flow rate HP required
Discharge piping Flow rate Desired flow velocity in piping East well line diameter Line length
4ft3
62ft 3 f t 41 ft
5 min 6 gpm
12 scfm 3hp
70 gpm 4 ftsec 3 inches
1070 feet
Assumes more than one press cycle per day as reqd Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI recommendation at peak 100 psi discharge (incorporates 2x correction for high viscosity) Assumes 4 cfmhp
Notes
Page 6 of 6
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TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
$142000
$851000
$43000 $43000 $85000 $85000
$256000
$1107000
$5000 $40000 $27000
$72000 $7000
$14000
$93000
$509000
$125000
$1^51000
$60000
$129000
$3296000
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TABLE 7-14 COST ESTIMATE ALTERNATIVE SML-5B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
$129000
$6919000
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TABLE 7-8 COST ESTIMATE ALTERNATIVE SML-4A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
Monitoring 2 Extraction Wells (Quarterly) Maintenance (Annual)
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (730 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-4A (1) Costs for upgrades to pump station on Route 112 not included
$5000 $27000
$32000 $3000
$6000
$41000
5509000
$125000
$1551000
$60000
5129000
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TABLE 7-9 COST ESTIMATE ALTERNATIVE SML-4B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Pilot Scale Field Study Installation of 17 Injection wells
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater ExtractionTreatmentDischarge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS In Situ Chemical Oxidation injection Injection Well Maintenance
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 5 YEARS)
$75000 $85000
$92000 $100000 $443000 $11000
$676000
$1482000
$296000
$1778000
$89000 $89000
$178000 $178000
$534000
52312000
$391000 $20000
$411000 $41000 $82000
$534000
52190000
TABLE 7-9 COST ESTIMATE ALTERNATIVE SML-4B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Tretment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (730 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-4B
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
S129000
$9359000
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Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
1 EQUIPMENT COSTS Item Quantity
(a) Extraction System Extraction Wells with Development (Level D) 2 Pumps with VFDs and Controls 2 Flow meters (2 magmeters) 2 Piezometers (Level D) 11 Piping (HOPE)
2 inch 1160
Subtotal Contractors Profit ( 10 of equipment cost) Extraction System Subtotal
(b) Treatment System
Flow meter (2 magmeter) Mix tank (400 gal) Mixer (1 HP) KMnO4 storage tank (3800 gal w sec cont) Mixer (3 HP) Chemical feed pump (120 gpd) NaOH storage tank (1 800 gal w sec cont) Chemical feed pump (70 gpd) Spare portable mixer (1 5 HP) Oxidation tank (2000 gal) Mixer (2 HP) Lamella separator (240 sq ft) 1 Transfer tank (400 gal) 1 Transfer and backwash pumps (2 HP) 3 Greensand Filters (3 ft diam) 2 HCI storage tank (2500 gal w sec cont) 1 Chemical feed pump (80 gpd) 1 Activated alumina colums (5 ft diam 120 cu ft) 2 GAC vessels (4 daim 1800 Ib GAC) 2 Backwash holding tank (7500 gal) 1 Clearwell (2000 gal) 1 Sludge holding tank (5500 gal) 1 Air Diaphragm Pumps - Press feed and sludge trans 2
Unit Unit Cost
ea $15000 ea $3300 ea $2300 ea $3000
LF $8
ea $2300 ea $770 ea $1500 ea $10120 ea $2300 ea $850 ea $6160 ea $790 ea $1800 ea $2800 ea $2200 ea $45000 ea $770 ea $3000 ea $8000 ea $9900 ea $790 ea $26800 ea $10296 ea $7600 ea $2800 ea $6300 ea $1000
Total Cost
$30000 $6600 $4600
$33000
$9280
$83480 $8350
$91830
$2300 $770
$1500 $10120
$2300 $850
$6160 $790
$1800 $2800 $2200
$45000 $770
$9000 $16000 $9900
$790 $53600 $20592
$7600 $2800 $6300 $2000
Pagel of 2
Saco Municipal Landfill Feasibility Study Saco Maine
Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
Air Compressor (3 HP) Polymer mixing tank (50 gal) Mixer (05 HP) Chemical feed pump- polymer (120 gpd) Static mixers - in-line 3 Sludge press (4 cu ft) Fork lift (for sludge bin and chemical handling) Building Costs (65L x 45W x 1 6H)
1111211
2925
ea ea ea ea ea ea ea
SF
$1700 $330 $1300 $850 $600 $24000 $23000 $50
$1700 $330 $1300 $850 $1200 $24000 $23000 $146250
Subtotal Contractors Profit ( 10 of equipment cost) Treatment System Subtotal
$402272 $40230
$442502
(c) Surface Water Discharge System 3 HOPE Pipe Infiltration Basin (150 x 150 x 5) Fence Swing Gate
10704167600
1
LF CY
LF Ea
$9 $10 $15 $400
$9630 $41667 $9000 $400
Subtotal Sales Tax ( 6 of equipment cost) Contractors Profit ( 10 of equipment cost) Discharge System Subtotal
$9630 $580 $960
$11170
EQUIPMENT SUBTOTAL $545502
2 INSTALLATION COSTS Instrumentation (15 of Equipment Subtotal) Electrical (15 of Equipment Subtotal) Process Piping (30 of Equipment Subtotal) HVAC System (7 of Equipment Subtotal) Labor (30 of Equipment Subtotal) Field Indirect (90 of Labor Cost)
$81825 $81825
$163651 $38185
$163651 $147286
INSTALLATION SUBTOTAL $676422
TOTAL CAPITAL COSTS Note Capital Costs are rounded to the nearest thousand
$1222000
Page 2 of 2
COST CATEGORIES
Labor (1 full-time operator) Electricity Other utilities (oil phone) Chemicals Maintenance 5 of capital Sludge disposal Monitoring OfficeSuppliesMiscdisposable items
TOTAL COST
ANNUAL COSTS
$73000 $9000 $5000
$47000 $27300 $13700 $17080 $5000
$197000
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM)
POWER ESTIMATE
2 Extraction pumps 2 Continuous mixers 4 Chemical Feed Pumps 1 Transfer Pump 1 Air Compressor HVACLights Miscellaneous
j bull bull H P shy
280300100200300300200
8 r HOURS ^ K W DAY
209 24 224 24 075 24 149 24 224 6 224 18 149 24
KWH DAY shy
50 54 18 36 13 40 36
ELECTRIC POWER SUMMARY HP KW
KWH DAY
KWH YEAR
TOTAL 1680 1253 247 90182
UNIT POWER COST SO 100 |
TOTAL ANNUAL POWER COST $9000 |
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Chemical Costs
QUANTITY CHEMICAL YEAR
Sodium Hydroxide (25) 30130 Hydrochloric Acid (30) 34488 Potassium Permanganate pure solid 6117 Polymer 22 GAC 1104
Subtotal Freight (10)
SUBTOTAL CHEMICALS
Sludge Costs
ITEM Wet Tonsyr 55 Unit Hauling and Tipping cost ($WT) $250 Sludge Disposal Cost (Syr) 513695 Assuming Sludge is disposed of as hazardous waste
UNITS
Gal Gal Lbs Lbs Lbs
UNIT COST
$040 $060 $160 $250 $300
ANNUAL COST
$12100 $20693 $9800
$100 $3300
$42693 $4269
$46962
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Monitoring Costs
1 Extraction Wells (Monitored Quarterly) No of Samples = 2
1 1
MSMSD =
4
Trip Blanks =Duplicates =
Eq Blanks = 0 Total =
Cost for VOC Analysis =Cost for Metals Analysis=
Monitoring Frequency =
Cost Subtotal =
0
$147 (for VOC Method 8260) $ 181 (for TAL Metals Method SW-846)
4 times per year
$5200 per year
2
QAQC =Total = 3
0
Cost for VOC Analysis =Cost for Metals Analysis =
Monitoring Frequency =
Cost Subtotal =
Total Cost =
Treatment System Sampling (Monthly) No of Samples= 3
$150 (for VOC Method 8260) $ 180 (for TAL Metals Method S W-846)
12 times per year
511880 per year
$17080 per year
Influent Criteria Flow r^70gpm Mn --li7 mgL As Fe Jgt 45 mgL pH ^-61 units
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Source 0101 MOD Modflow modelling by JRH w 15 safety factor
Average of wells 95-4SAB and 97-14S-1 and 2 shyAverage of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB
Alkalinity 3pmgLasCaCO3 Average of wells 95-4SAB and 97-14S-1 and 2 Benzene ^2uc Average of wells 95-4SAB
Effluent Criteria Mn 084 mgL As 005 mgL Benzene 5 ugL
Assumptions All metals in reduced state Linear titration curve between pH 45 and 105
Unit Processes Wells pumps and piping KMnO4 and NaOH rapid mix addition Oxidation tank w mixer Lamella inclined plate separator Transfer tank and pumps Manganese greensand filters HCI addition Activated alumina ion exchange Granular activated carbon vessels Backwash tank Sludge thickening tank Polymer mixing tank Sludge press Discharge piping
Wells pumps and piping Desired flow velocity in piping East well flow East well line diameter
Function Deliver groundwater to treatment Oxidize Fe Mn As pH adjust to 80 Oxidize Fe Mn As pH adjust to 80 Remove majority of Fe some Mn and As Shift from gravity to pressure operation Remove Fe Mn to less than 05 ppm Adjust pH to 60 Remove As to less than 30 ppb Remove VOCs Collect and settle backwash water to minimize volume Mix sludge with polymer for enhanced dewatering Prepare polymer for mixing with sludge Press sludge for disposal Convey clean water to discharge point
Notes 4 ftsec
23 gpm 2 inches
Page 1 of 6
Saco Landfill Groundwater Pump amp Treat System
Line length Depth to screen midpoint Additional head required Total head required Pump size required West well flow West well line diameter Line length Depth to screen midpoint Additional head required Total head required Pump size required
KMnO4 and NaOH and caustic Mix tank residence time Mix tank volume Tank diameter Tank height Actual tank volume w freeboard Dose KMnO4 required
KMnO4 solution strength
KMnO4 addition rate Desired storage time KMnO4 storage volume reqd
KMnO4 Tank diameter
KMnO4 tank height Actual tank volume w freeboard Desired pH Alk per pH unit (as CaCO3) Alkalinity lost in oxidation Total alkalinity required NaOH solution strength NaOH addition rate Desired storage time NaOH storage volume reqd NaOH tank diameter NaOH tank height Actual tank volume w freeboard
Conceptual Design 580 feet 60 feet 44to76bgs
50^ feet 25 feet elevation difference + 10 psi excess 110 feet 11 hp 47 gpm
2 inches 580 feet 32 feet 18to46bgs 50 feet 82 feet 17hp
addition Notes 5 mm Reasonable time for stable pH control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
57 mgL Dose 094 Iblb Fe 192 Iblb Mn 2 Iblb As
50000 mgL
008 gpm 116 gpd 17 IbMnday
30 days 3500 gallons
7 feet
131 feet Includes 1 ft freeboard 3790 gallons
80 units 177 mgL 35 meq 15 meq 149 Ib as CaCO3lb Fe 121 Iblb Mn 2 Iblb As 61 meq 75 N 25 (ww) NaOH approx = 75N
006 gpm 83 gpd 30 days
2500 gallons 7 feet
97 feet Includes 1 ft freeboard 2790 gallons
Page 2 of 6
Saco Landfill Ground water Pump amp Treat System
Oxidation tank Oxidation tank residence time Oxidation tank volume Tank diameter Tank height Actual tank volume w freeboard
Lamella inclined plate separator
Surface loading rate
Required surface area
Unit size Number of units Approx height Approx length Approx width
Transfer tank and pumps Transfer tank residence time Transfer tank volume Tank diameter Tank height Actual tank volume w freeboard Pump capacity Pump flow Pump horsepower
Manganese greensand filters
Surface loading rate
Required surface area Required diameter
Unit size provided Diameter provided Number of units
Activated alumina ion exchange Desired pH for act alumina HC1 required to offset NaOH
Conceptual Design Notes
25 min Reaction time of 5 to 30 minutes suggested in AWWA 1800 gallons
6 feet 95 feet Includes 1 ft freeboard
2010 gallons
04 gpmfr 04 to 06 gpmsq ft recommended by Parkson
175ft2
240ft2 Unit sizes of 240480 740 and 1150 sq ft available 1 unit
13 feet Dimensions from Parkson 11 feet 6 feet
Notes 5 min Reasonable time for stable pump control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
70 ft head 30 psi 70 gpm
21 HP
3 gpmft2 3 to 5 gpm per sq ft recommended in AWWA
23 ft2
27ft
28ft2
30ft 2 units Plan to alternate units can also run in series or parallel
Notes 60 units 61 meq
Page 3 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
HC1 required to achieve setpoint 25 meq Total acidity required 86 meq HCI solution strength 9NHC1 addition rate 007 gpmDesired storage time - 30 days HCI storage volume reqd 2900 gallons HCI tank diameter 7 feet HCI tank height 111 feet Actual tank volume w freeboard 3190 gallons
Act alum surface loading rate 1 gpmft2
Required surface area 70ft2
Required diameter 47ft
Unit size provided 79ft2
Diameter provided 50ft EBCT required 50 min Volume to satisfy EBCT 47 cu ft Bed volumes to breakthrough 10000 volumes Desired time to breakthrough 90 days Bed vol reqd for breakthrough 121 cu ft Controlling bed volume 121 cu ft Number of units 2 units
Granular Activated Carbon Carbon vessels required 2 units Flow rate 700 gpm Min vessel diameter 48 inches Mass of carbon in vessel 1700 Ibs Mass of carbon used per day 3 Ibs Life of vessel 15 years
Clearwell and backwash settling tanks Filter backwash rate 175 gpm Backwash cycles per day 2 cycles Backwash duration 10 minutes Settling tank hold time 2 days Settling tank volume required 7000 gallons Settling tank diameter 9 feet Settling tank height 157 feet Actual tank volume w freeboard 7480 gallons
20 deg Be = 30 soln = 92 N 94 gpd
Includes 1 ft freeboard
1 to 5 gpm per sq ft recommended in AWWA
FromAWWAp 615 Regenerate once per quarter Complicated task
Plan to alternate units can also run in series or parallel
Notes Plan to run in series
Based on use rate of 003 lb1000 gal from Calgon
Notes Assume 250 of forward flow rate
Includes 1 ft freeboard
Page 4 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Clearwell volume required Cleanvell tank diameter Clearwell tank height Actual tank volume w freeboard
Sludge storagethickening tank Mass of Fe removed
Mass of Mn removed
Mass of As removed
Misc other metals removed Total metals removed Cone of As in dry sludge Hazardous waste Settled sludge concentration Sludge specific gravity Settled sludge volume Sludge holding between presses Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard
Polymer day tank Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard Polymer dose Polymer use
Sludge press Pressed sludge concentration Sludge specific gravity
Pressed sludge volume Pressed sludge mass
1750 gallons 6 feet
93 feet 1960 gallons
38 Ibday 72 Ibday
23 Ibday
37 Ibday 01 Ibday 02 Ibday 11 Ibday
120 Ibday 980 mgkg Yes
20000 mgL 101 714 galday
7 days maximum
Includes bull=11 ft freeboard
Notes asFe as Fe(OH)3
as Mn includes Mn added with KMnO4
asMnO2
as As as As(OH) assumes 10 of Fe Mn total
Hazardous waste threshhold is 100 mgkg 2
5100 gallons 8 feet
145 feet 5480 gallons
30 gallons 2 feet
23 feet 50 gallons 10 mgL 22 Ibyear
400000 mgL 140
26 galday 300 Ibday
Includes 1 ft freeboard
Notes Polymer diluted in day tank dosed in-line w static mixer
Includes 1 ft freeboard
3 ftVday 45 tonmonth
Page 5 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Required press volume Length Width Height Initial press fill time AOD pump flow rate Compressed air flow rate HP required
Discharge piping Flow rate Desired flow velocity in piping East well line diameter Line length
4ft3
62ft 3 f t 41 ft
5 min 6 gpm
12 scfm 3hp
70 gpm 4 ftsec 3 inches
1070 feet
Assumes more than one press cycle per day as reqd Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI recommendation at peak 100 psi discharge (incorporates 2x correction for high viscosity) Assumes 4 cfmhp
Notes
Page 6 of 6
WOODARDlaquoSLCURRANEngineering bull Science bull Operations
CLIENT
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TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
$142000
$851000
$43000 $43000 $85000 $85000
$256000
$1107000
$5000 $40000 $27000
$72000 $7000
$14000
$93000
$509000
$125000
$1^51000
$60000
$129000
$3296000
Feasibility Study 31000
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TABLE 7-14 COST ESTIMATE ALTERNATIVE SML-5B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
$129000
$6919000
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TABLE 7-9 COST ESTIMATE ALTERNATIVE SML-4B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Pilot Scale Field Study Installation of 17 Injection wells
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater ExtractionTreatmentDischarge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS In Situ Chemical Oxidation injection Injection Well Maintenance
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 5 YEARS)
$75000 $85000
$92000 $100000 $443000 $11000
$676000
$1482000
$296000
$1778000
$89000 $89000
$178000 $178000
$534000
52312000
$391000 $20000
$411000 $41000 $82000
$534000
52190000
TABLE 7-9 COST ESTIMATE ALTERNATIVE SML-4B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Tretment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (730 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-4B
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
S129000
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Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
1 EQUIPMENT COSTS Item Quantity
(a) Extraction System Extraction Wells with Development (Level D) 2 Pumps with VFDs and Controls 2 Flow meters (2 magmeters) 2 Piezometers (Level D) 11 Piping (HOPE)
2 inch 1160
Subtotal Contractors Profit ( 10 of equipment cost) Extraction System Subtotal
(b) Treatment System
Flow meter (2 magmeter) Mix tank (400 gal) Mixer (1 HP) KMnO4 storage tank (3800 gal w sec cont) Mixer (3 HP) Chemical feed pump (120 gpd) NaOH storage tank (1 800 gal w sec cont) Chemical feed pump (70 gpd) Spare portable mixer (1 5 HP) Oxidation tank (2000 gal) Mixer (2 HP) Lamella separator (240 sq ft) 1 Transfer tank (400 gal) 1 Transfer and backwash pumps (2 HP) 3 Greensand Filters (3 ft diam) 2 HCI storage tank (2500 gal w sec cont) 1 Chemical feed pump (80 gpd) 1 Activated alumina colums (5 ft diam 120 cu ft) 2 GAC vessels (4 daim 1800 Ib GAC) 2 Backwash holding tank (7500 gal) 1 Clearwell (2000 gal) 1 Sludge holding tank (5500 gal) 1 Air Diaphragm Pumps - Press feed and sludge trans 2
Unit Unit Cost
ea $15000 ea $3300 ea $2300 ea $3000
LF $8
ea $2300 ea $770 ea $1500 ea $10120 ea $2300 ea $850 ea $6160 ea $790 ea $1800 ea $2800 ea $2200 ea $45000 ea $770 ea $3000 ea $8000 ea $9900 ea $790 ea $26800 ea $10296 ea $7600 ea $2800 ea $6300 ea $1000
Total Cost
$30000 $6600 $4600
$33000
$9280
$83480 $8350
$91830
$2300 $770
$1500 $10120
$2300 $850
$6160 $790
$1800 $2800 $2200
$45000 $770
$9000 $16000 $9900
$790 $53600 $20592
$7600 $2800 $6300 $2000
Pagel of 2
Saco Municipal Landfill Feasibility Study Saco Maine
Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
Air Compressor (3 HP) Polymer mixing tank (50 gal) Mixer (05 HP) Chemical feed pump- polymer (120 gpd) Static mixers - in-line 3 Sludge press (4 cu ft) Fork lift (for sludge bin and chemical handling) Building Costs (65L x 45W x 1 6H)
1111211
2925
ea ea ea ea ea ea ea
SF
$1700 $330 $1300 $850 $600 $24000 $23000 $50
$1700 $330 $1300 $850 $1200 $24000 $23000 $146250
Subtotal Contractors Profit ( 10 of equipment cost) Treatment System Subtotal
$402272 $40230
$442502
(c) Surface Water Discharge System 3 HOPE Pipe Infiltration Basin (150 x 150 x 5) Fence Swing Gate
10704167600
1
LF CY
LF Ea
$9 $10 $15 $400
$9630 $41667 $9000 $400
Subtotal Sales Tax ( 6 of equipment cost) Contractors Profit ( 10 of equipment cost) Discharge System Subtotal
$9630 $580 $960
$11170
EQUIPMENT SUBTOTAL $545502
2 INSTALLATION COSTS Instrumentation (15 of Equipment Subtotal) Electrical (15 of Equipment Subtotal) Process Piping (30 of Equipment Subtotal) HVAC System (7 of Equipment Subtotal) Labor (30 of Equipment Subtotal) Field Indirect (90 of Labor Cost)
$81825 $81825
$163651 $38185
$163651 $147286
INSTALLATION SUBTOTAL $676422
TOTAL CAPITAL COSTS Note Capital Costs are rounded to the nearest thousand
$1222000
Page 2 of 2
COST CATEGORIES
Labor (1 full-time operator) Electricity Other utilities (oil phone) Chemicals Maintenance 5 of capital Sludge disposal Monitoring OfficeSuppliesMiscdisposable items
TOTAL COST
ANNUAL COSTS
$73000 $9000 $5000
$47000 $27300 $13700 $17080 $5000
$197000
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM)
POWER ESTIMATE
2 Extraction pumps 2 Continuous mixers 4 Chemical Feed Pumps 1 Transfer Pump 1 Air Compressor HVACLights Miscellaneous
j bull bull H P shy
280300100200300300200
8 r HOURS ^ K W DAY
209 24 224 24 075 24 149 24 224 6 224 18 149 24
KWH DAY shy
50 54 18 36 13 40 36
ELECTRIC POWER SUMMARY HP KW
KWH DAY
KWH YEAR
TOTAL 1680 1253 247 90182
UNIT POWER COST SO 100 |
TOTAL ANNUAL POWER COST $9000 |
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Chemical Costs
QUANTITY CHEMICAL YEAR
Sodium Hydroxide (25) 30130 Hydrochloric Acid (30) 34488 Potassium Permanganate pure solid 6117 Polymer 22 GAC 1104
Subtotal Freight (10)
SUBTOTAL CHEMICALS
Sludge Costs
ITEM Wet Tonsyr 55 Unit Hauling and Tipping cost ($WT) $250 Sludge Disposal Cost (Syr) 513695 Assuming Sludge is disposed of as hazardous waste
UNITS
Gal Gal Lbs Lbs Lbs
UNIT COST
$040 $060 $160 $250 $300
ANNUAL COST
$12100 $20693 $9800
$100 $3300
$42693 $4269
$46962
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Monitoring Costs
1 Extraction Wells (Monitored Quarterly) No of Samples = 2
1 1
MSMSD =
4
Trip Blanks =Duplicates =
Eq Blanks = 0 Total =
Cost for VOC Analysis =Cost for Metals Analysis=
Monitoring Frequency =
Cost Subtotal =
0
$147 (for VOC Method 8260) $ 181 (for TAL Metals Method SW-846)
4 times per year
$5200 per year
2
QAQC =Total = 3
0
Cost for VOC Analysis =Cost for Metals Analysis =
Monitoring Frequency =
Cost Subtotal =
Total Cost =
Treatment System Sampling (Monthly) No of Samples= 3
$150 (for VOC Method 8260) $ 180 (for TAL Metals Method S W-846)
12 times per year
511880 per year
$17080 per year
Influent Criteria Flow r^70gpm Mn --li7 mgL As Fe Jgt 45 mgL pH ^-61 units
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Source 0101 MOD Modflow modelling by JRH w 15 safety factor
Average of wells 95-4SAB and 97-14S-1 and 2 shyAverage of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB
Alkalinity 3pmgLasCaCO3 Average of wells 95-4SAB and 97-14S-1 and 2 Benzene ^2uc Average of wells 95-4SAB
Effluent Criteria Mn 084 mgL As 005 mgL Benzene 5 ugL
Assumptions All metals in reduced state Linear titration curve between pH 45 and 105
Unit Processes Wells pumps and piping KMnO4 and NaOH rapid mix addition Oxidation tank w mixer Lamella inclined plate separator Transfer tank and pumps Manganese greensand filters HCI addition Activated alumina ion exchange Granular activated carbon vessels Backwash tank Sludge thickening tank Polymer mixing tank Sludge press Discharge piping
Wells pumps and piping Desired flow velocity in piping East well flow East well line diameter
Function Deliver groundwater to treatment Oxidize Fe Mn As pH adjust to 80 Oxidize Fe Mn As pH adjust to 80 Remove majority of Fe some Mn and As Shift from gravity to pressure operation Remove Fe Mn to less than 05 ppm Adjust pH to 60 Remove As to less than 30 ppb Remove VOCs Collect and settle backwash water to minimize volume Mix sludge with polymer for enhanced dewatering Prepare polymer for mixing with sludge Press sludge for disposal Convey clean water to discharge point
Notes 4 ftsec
23 gpm 2 inches
Page 1 of 6
Saco Landfill Groundwater Pump amp Treat System
Line length Depth to screen midpoint Additional head required Total head required Pump size required West well flow West well line diameter Line length Depth to screen midpoint Additional head required Total head required Pump size required
KMnO4 and NaOH and caustic Mix tank residence time Mix tank volume Tank diameter Tank height Actual tank volume w freeboard Dose KMnO4 required
KMnO4 solution strength
KMnO4 addition rate Desired storage time KMnO4 storage volume reqd
KMnO4 Tank diameter
KMnO4 tank height Actual tank volume w freeboard Desired pH Alk per pH unit (as CaCO3) Alkalinity lost in oxidation Total alkalinity required NaOH solution strength NaOH addition rate Desired storage time NaOH storage volume reqd NaOH tank diameter NaOH tank height Actual tank volume w freeboard
Conceptual Design 580 feet 60 feet 44to76bgs
50^ feet 25 feet elevation difference + 10 psi excess 110 feet 11 hp 47 gpm
2 inches 580 feet 32 feet 18to46bgs 50 feet 82 feet 17hp
addition Notes 5 mm Reasonable time for stable pH control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
57 mgL Dose 094 Iblb Fe 192 Iblb Mn 2 Iblb As
50000 mgL
008 gpm 116 gpd 17 IbMnday
30 days 3500 gallons
7 feet
131 feet Includes 1 ft freeboard 3790 gallons
80 units 177 mgL 35 meq 15 meq 149 Ib as CaCO3lb Fe 121 Iblb Mn 2 Iblb As 61 meq 75 N 25 (ww) NaOH approx = 75N
006 gpm 83 gpd 30 days
2500 gallons 7 feet
97 feet Includes 1 ft freeboard 2790 gallons
Page 2 of 6
Saco Landfill Ground water Pump amp Treat System
Oxidation tank Oxidation tank residence time Oxidation tank volume Tank diameter Tank height Actual tank volume w freeboard
Lamella inclined plate separator
Surface loading rate
Required surface area
Unit size Number of units Approx height Approx length Approx width
Transfer tank and pumps Transfer tank residence time Transfer tank volume Tank diameter Tank height Actual tank volume w freeboard Pump capacity Pump flow Pump horsepower
Manganese greensand filters
Surface loading rate
Required surface area Required diameter
Unit size provided Diameter provided Number of units
Activated alumina ion exchange Desired pH for act alumina HC1 required to offset NaOH
Conceptual Design Notes
25 min Reaction time of 5 to 30 minutes suggested in AWWA 1800 gallons
6 feet 95 feet Includes 1 ft freeboard
2010 gallons
04 gpmfr 04 to 06 gpmsq ft recommended by Parkson
175ft2
240ft2 Unit sizes of 240480 740 and 1150 sq ft available 1 unit
13 feet Dimensions from Parkson 11 feet 6 feet
Notes 5 min Reasonable time for stable pump control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
70 ft head 30 psi 70 gpm
21 HP
3 gpmft2 3 to 5 gpm per sq ft recommended in AWWA
23 ft2
27ft
28ft2
30ft 2 units Plan to alternate units can also run in series or parallel
Notes 60 units 61 meq
Page 3 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
HC1 required to achieve setpoint 25 meq Total acidity required 86 meq HCI solution strength 9NHC1 addition rate 007 gpmDesired storage time - 30 days HCI storage volume reqd 2900 gallons HCI tank diameter 7 feet HCI tank height 111 feet Actual tank volume w freeboard 3190 gallons
Act alum surface loading rate 1 gpmft2
Required surface area 70ft2
Required diameter 47ft
Unit size provided 79ft2
Diameter provided 50ft EBCT required 50 min Volume to satisfy EBCT 47 cu ft Bed volumes to breakthrough 10000 volumes Desired time to breakthrough 90 days Bed vol reqd for breakthrough 121 cu ft Controlling bed volume 121 cu ft Number of units 2 units
Granular Activated Carbon Carbon vessels required 2 units Flow rate 700 gpm Min vessel diameter 48 inches Mass of carbon in vessel 1700 Ibs Mass of carbon used per day 3 Ibs Life of vessel 15 years
Clearwell and backwash settling tanks Filter backwash rate 175 gpm Backwash cycles per day 2 cycles Backwash duration 10 minutes Settling tank hold time 2 days Settling tank volume required 7000 gallons Settling tank diameter 9 feet Settling tank height 157 feet Actual tank volume w freeboard 7480 gallons
20 deg Be = 30 soln = 92 N 94 gpd
Includes 1 ft freeboard
1 to 5 gpm per sq ft recommended in AWWA
FromAWWAp 615 Regenerate once per quarter Complicated task
Plan to alternate units can also run in series or parallel
Notes Plan to run in series
Based on use rate of 003 lb1000 gal from Calgon
Notes Assume 250 of forward flow rate
Includes 1 ft freeboard
Page 4 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Clearwell volume required Cleanvell tank diameter Clearwell tank height Actual tank volume w freeboard
Sludge storagethickening tank Mass of Fe removed
Mass of Mn removed
Mass of As removed
Misc other metals removed Total metals removed Cone of As in dry sludge Hazardous waste Settled sludge concentration Sludge specific gravity Settled sludge volume Sludge holding between presses Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard
Polymer day tank Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard Polymer dose Polymer use
Sludge press Pressed sludge concentration Sludge specific gravity
Pressed sludge volume Pressed sludge mass
1750 gallons 6 feet
93 feet 1960 gallons
38 Ibday 72 Ibday
23 Ibday
37 Ibday 01 Ibday 02 Ibday 11 Ibday
120 Ibday 980 mgkg Yes
20000 mgL 101 714 galday
7 days maximum
Includes bull=11 ft freeboard
Notes asFe as Fe(OH)3
as Mn includes Mn added with KMnO4
asMnO2
as As as As(OH) assumes 10 of Fe Mn total
Hazardous waste threshhold is 100 mgkg 2
5100 gallons 8 feet
145 feet 5480 gallons
30 gallons 2 feet
23 feet 50 gallons 10 mgL 22 Ibyear
400000 mgL 140
26 galday 300 Ibday
Includes 1 ft freeboard
Notes Polymer diluted in day tank dosed in-line w static mixer
Includes 1 ft freeboard
3 ftVday 45 tonmonth
Page 5 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Required press volume Length Width Height Initial press fill time AOD pump flow rate Compressed air flow rate HP required
Discharge piping Flow rate Desired flow velocity in piping East well line diameter Line length
4ft3
62ft 3 f t 41 ft
5 min 6 gpm
12 scfm 3hp
70 gpm 4 ftsec 3 inches
1070 feet
Assumes more than one press cycle per day as reqd Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI recommendation at peak 100 psi discharge (incorporates 2x correction for high viscosity) Assumes 4 cfmhp
Notes
Page 6 of 6
WOODARDlaquoSLCURRANEngineering bull Science bull Operations
CLIENT
PROJECT H^r^i i^d-ftli
41 HUTCHINS DRIVE DESIGNEDESIGNEDD BBYY Lbull ~~T7lSdltU t tvesampt DATE
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TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
$142000
$851000
$43000 $43000 $85000 $85000
$256000
$1107000
$5000 $40000 $27000
$72000 $7000
$14000
$93000
$509000
$125000
$1^51000
$60000
$129000
$3296000
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TABLE 7-14 COST ESTIMATE ALTERNATIVE SML-5B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
$129000
$6919000
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TABLE 7-9 COST ESTIMATE ALTERNATIVE SML-4B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Pilot Scale Field Study Installation of 17 Injection wells
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater ExtractionTreatmentDischarge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS In Situ Chemical Oxidation injection Injection Well Maintenance
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 5 YEARS)
$75000 $85000
$92000 $100000 $443000 $11000
$676000
$1482000
$296000
$1778000
$89000 $89000
$178000 $178000
$534000
52312000
$391000 $20000
$411000 $41000 $82000
$534000
52190000
TABLE 7-9 COST ESTIMATE ALTERNATIVE SML-4B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Tretment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (730 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-4B
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
S129000
$9359000
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Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
1 EQUIPMENT COSTS Item Quantity
(a) Extraction System Extraction Wells with Development (Level D) 2 Pumps with VFDs and Controls 2 Flow meters (2 magmeters) 2 Piezometers (Level D) 11 Piping (HOPE)
2 inch 1160
Subtotal Contractors Profit ( 10 of equipment cost) Extraction System Subtotal
(b) Treatment System
Flow meter (2 magmeter) Mix tank (400 gal) Mixer (1 HP) KMnO4 storage tank (3800 gal w sec cont) Mixer (3 HP) Chemical feed pump (120 gpd) NaOH storage tank (1 800 gal w sec cont) Chemical feed pump (70 gpd) Spare portable mixer (1 5 HP) Oxidation tank (2000 gal) Mixer (2 HP) Lamella separator (240 sq ft) 1 Transfer tank (400 gal) 1 Transfer and backwash pumps (2 HP) 3 Greensand Filters (3 ft diam) 2 HCI storage tank (2500 gal w sec cont) 1 Chemical feed pump (80 gpd) 1 Activated alumina colums (5 ft diam 120 cu ft) 2 GAC vessels (4 daim 1800 Ib GAC) 2 Backwash holding tank (7500 gal) 1 Clearwell (2000 gal) 1 Sludge holding tank (5500 gal) 1 Air Diaphragm Pumps - Press feed and sludge trans 2
Unit Unit Cost
ea $15000 ea $3300 ea $2300 ea $3000
LF $8
ea $2300 ea $770 ea $1500 ea $10120 ea $2300 ea $850 ea $6160 ea $790 ea $1800 ea $2800 ea $2200 ea $45000 ea $770 ea $3000 ea $8000 ea $9900 ea $790 ea $26800 ea $10296 ea $7600 ea $2800 ea $6300 ea $1000
Total Cost
$30000 $6600 $4600
$33000
$9280
$83480 $8350
$91830
$2300 $770
$1500 $10120
$2300 $850
$6160 $790
$1800 $2800 $2200
$45000 $770
$9000 $16000 $9900
$790 $53600 $20592
$7600 $2800 $6300 $2000
Pagel of 2
Saco Municipal Landfill Feasibility Study Saco Maine
Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
Air Compressor (3 HP) Polymer mixing tank (50 gal) Mixer (05 HP) Chemical feed pump- polymer (120 gpd) Static mixers - in-line 3 Sludge press (4 cu ft) Fork lift (for sludge bin and chemical handling) Building Costs (65L x 45W x 1 6H)
1111211
2925
ea ea ea ea ea ea ea
SF
$1700 $330 $1300 $850 $600 $24000 $23000 $50
$1700 $330 $1300 $850 $1200 $24000 $23000 $146250
Subtotal Contractors Profit ( 10 of equipment cost) Treatment System Subtotal
$402272 $40230
$442502
(c) Surface Water Discharge System 3 HOPE Pipe Infiltration Basin (150 x 150 x 5) Fence Swing Gate
10704167600
1
LF CY
LF Ea
$9 $10 $15 $400
$9630 $41667 $9000 $400
Subtotal Sales Tax ( 6 of equipment cost) Contractors Profit ( 10 of equipment cost) Discharge System Subtotal
$9630 $580 $960
$11170
EQUIPMENT SUBTOTAL $545502
2 INSTALLATION COSTS Instrumentation (15 of Equipment Subtotal) Electrical (15 of Equipment Subtotal) Process Piping (30 of Equipment Subtotal) HVAC System (7 of Equipment Subtotal) Labor (30 of Equipment Subtotal) Field Indirect (90 of Labor Cost)
$81825 $81825
$163651 $38185
$163651 $147286
INSTALLATION SUBTOTAL $676422
TOTAL CAPITAL COSTS Note Capital Costs are rounded to the nearest thousand
$1222000
Page 2 of 2
COST CATEGORIES
Labor (1 full-time operator) Electricity Other utilities (oil phone) Chemicals Maintenance 5 of capital Sludge disposal Monitoring OfficeSuppliesMiscdisposable items
TOTAL COST
ANNUAL COSTS
$73000 $9000 $5000
$47000 $27300 $13700 $17080 $5000
$197000
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM)
POWER ESTIMATE
2 Extraction pumps 2 Continuous mixers 4 Chemical Feed Pumps 1 Transfer Pump 1 Air Compressor HVACLights Miscellaneous
j bull bull H P shy
280300100200300300200
8 r HOURS ^ K W DAY
209 24 224 24 075 24 149 24 224 6 224 18 149 24
KWH DAY shy
50 54 18 36 13 40 36
ELECTRIC POWER SUMMARY HP KW
KWH DAY
KWH YEAR
TOTAL 1680 1253 247 90182
UNIT POWER COST SO 100 |
TOTAL ANNUAL POWER COST $9000 |
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Chemical Costs
QUANTITY CHEMICAL YEAR
Sodium Hydroxide (25) 30130 Hydrochloric Acid (30) 34488 Potassium Permanganate pure solid 6117 Polymer 22 GAC 1104
Subtotal Freight (10)
SUBTOTAL CHEMICALS
Sludge Costs
ITEM Wet Tonsyr 55 Unit Hauling and Tipping cost ($WT) $250 Sludge Disposal Cost (Syr) 513695 Assuming Sludge is disposed of as hazardous waste
UNITS
Gal Gal Lbs Lbs Lbs
UNIT COST
$040 $060 $160 $250 $300
ANNUAL COST
$12100 $20693 $9800
$100 $3300
$42693 $4269
$46962
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Monitoring Costs
1 Extraction Wells (Monitored Quarterly) No of Samples = 2
1 1
MSMSD =
4
Trip Blanks =Duplicates =
Eq Blanks = 0 Total =
Cost for VOC Analysis =Cost for Metals Analysis=
Monitoring Frequency =
Cost Subtotal =
0
$147 (for VOC Method 8260) $ 181 (for TAL Metals Method SW-846)
4 times per year
$5200 per year
2
QAQC =Total = 3
0
Cost for VOC Analysis =Cost for Metals Analysis =
Monitoring Frequency =
Cost Subtotal =
Total Cost =
Treatment System Sampling (Monthly) No of Samples= 3
$150 (for VOC Method 8260) $ 180 (for TAL Metals Method S W-846)
12 times per year
511880 per year
$17080 per year
Influent Criteria Flow r^70gpm Mn --li7 mgL As Fe Jgt 45 mgL pH ^-61 units
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Source 0101 MOD Modflow modelling by JRH w 15 safety factor
Average of wells 95-4SAB and 97-14S-1 and 2 shyAverage of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB
Alkalinity 3pmgLasCaCO3 Average of wells 95-4SAB and 97-14S-1 and 2 Benzene ^2uc Average of wells 95-4SAB
Effluent Criteria Mn 084 mgL As 005 mgL Benzene 5 ugL
Assumptions All metals in reduced state Linear titration curve between pH 45 and 105
Unit Processes Wells pumps and piping KMnO4 and NaOH rapid mix addition Oxidation tank w mixer Lamella inclined plate separator Transfer tank and pumps Manganese greensand filters HCI addition Activated alumina ion exchange Granular activated carbon vessels Backwash tank Sludge thickening tank Polymer mixing tank Sludge press Discharge piping
Wells pumps and piping Desired flow velocity in piping East well flow East well line diameter
Function Deliver groundwater to treatment Oxidize Fe Mn As pH adjust to 80 Oxidize Fe Mn As pH adjust to 80 Remove majority of Fe some Mn and As Shift from gravity to pressure operation Remove Fe Mn to less than 05 ppm Adjust pH to 60 Remove As to less than 30 ppb Remove VOCs Collect and settle backwash water to minimize volume Mix sludge with polymer for enhanced dewatering Prepare polymer for mixing with sludge Press sludge for disposal Convey clean water to discharge point
Notes 4 ftsec
23 gpm 2 inches
Page 1 of 6
Saco Landfill Groundwater Pump amp Treat System
Line length Depth to screen midpoint Additional head required Total head required Pump size required West well flow West well line diameter Line length Depth to screen midpoint Additional head required Total head required Pump size required
KMnO4 and NaOH and caustic Mix tank residence time Mix tank volume Tank diameter Tank height Actual tank volume w freeboard Dose KMnO4 required
KMnO4 solution strength
KMnO4 addition rate Desired storage time KMnO4 storage volume reqd
KMnO4 Tank diameter
KMnO4 tank height Actual tank volume w freeboard Desired pH Alk per pH unit (as CaCO3) Alkalinity lost in oxidation Total alkalinity required NaOH solution strength NaOH addition rate Desired storage time NaOH storage volume reqd NaOH tank diameter NaOH tank height Actual tank volume w freeboard
Conceptual Design 580 feet 60 feet 44to76bgs
50^ feet 25 feet elevation difference + 10 psi excess 110 feet 11 hp 47 gpm
2 inches 580 feet 32 feet 18to46bgs 50 feet 82 feet 17hp
addition Notes 5 mm Reasonable time for stable pH control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
57 mgL Dose 094 Iblb Fe 192 Iblb Mn 2 Iblb As
50000 mgL
008 gpm 116 gpd 17 IbMnday
30 days 3500 gallons
7 feet
131 feet Includes 1 ft freeboard 3790 gallons
80 units 177 mgL 35 meq 15 meq 149 Ib as CaCO3lb Fe 121 Iblb Mn 2 Iblb As 61 meq 75 N 25 (ww) NaOH approx = 75N
006 gpm 83 gpd 30 days
2500 gallons 7 feet
97 feet Includes 1 ft freeboard 2790 gallons
Page 2 of 6
Saco Landfill Ground water Pump amp Treat System
Oxidation tank Oxidation tank residence time Oxidation tank volume Tank diameter Tank height Actual tank volume w freeboard
Lamella inclined plate separator
Surface loading rate
Required surface area
Unit size Number of units Approx height Approx length Approx width
Transfer tank and pumps Transfer tank residence time Transfer tank volume Tank diameter Tank height Actual tank volume w freeboard Pump capacity Pump flow Pump horsepower
Manganese greensand filters
Surface loading rate
Required surface area Required diameter
Unit size provided Diameter provided Number of units
Activated alumina ion exchange Desired pH for act alumina HC1 required to offset NaOH
Conceptual Design Notes
25 min Reaction time of 5 to 30 minutes suggested in AWWA 1800 gallons
6 feet 95 feet Includes 1 ft freeboard
2010 gallons
04 gpmfr 04 to 06 gpmsq ft recommended by Parkson
175ft2
240ft2 Unit sizes of 240480 740 and 1150 sq ft available 1 unit
13 feet Dimensions from Parkson 11 feet 6 feet
Notes 5 min Reasonable time for stable pump control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
70 ft head 30 psi 70 gpm
21 HP
3 gpmft2 3 to 5 gpm per sq ft recommended in AWWA
23 ft2
27ft
28ft2
30ft 2 units Plan to alternate units can also run in series or parallel
Notes 60 units 61 meq
Page 3 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
HC1 required to achieve setpoint 25 meq Total acidity required 86 meq HCI solution strength 9NHC1 addition rate 007 gpmDesired storage time - 30 days HCI storage volume reqd 2900 gallons HCI tank diameter 7 feet HCI tank height 111 feet Actual tank volume w freeboard 3190 gallons
Act alum surface loading rate 1 gpmft2
Required surface area 70ft2
Required diameter 47ft
Unit size provided 79ft2
Diameter provided 50ft EBCT required 50 min Volume to satisfy EBCT 47 cu ft Bed volumes to breakthrough 10000 volumes Desired time to breakthrough 90 days Bed vol reqd for breakthrough 121 cu ft Controlling bed volume 121 cu ft Number of units 2 units
Granular Activated Carbon Carbon vessels required 2 units Flow rate 700 gpm Min vessel diameter 48 inches Mass of carbon in vessel 1700 Ibs Mass of carbon used per day 3 Ibs Life of vessel 15 years
Clearwell and backwash settling tanks Filter backwash rate 175 gpm Backwash cycles per day 2 cycles Backwash duration 10 minutes Settling tank hold time 2 days Settling tank volume required 7000 gallons Settling tank diameter 9 feet Settling tank height 157 feet Actual tank volume w freeboard 7480 gallons
20 deg Be = 30 soln = 92 N 94 gpd
Includes 1 ft freeboard
1 to 5 gpm per sq ft recommended in AWWA
FromAWWAp 615 Regenerate once per quarter Complicated task
Plan to alternate units can also run in series or parallel
Notes Plan to run in series
Based on use rate of 003 lb1000 gal from Calgon
Notes Assume 250 of forward flow rate
Includes 1 ft freeboard
Page 4 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Clearwell volume required Cleanvell tank diameter Clearwell tank height Actual tank volume w freeboard
Sludge storagethickening tank Mass of Fe removed
Mass of Mn removed
Mass of As removed
Misc other metals removed Total metals removed Cone of As in dry sludge Hazardous waste Settled sludge concentration Sludge specific gravity Settled sludge volume Sludge holding between presses Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard
Polymer day tank Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard Polymer dose Polymer use
Sludge press Pressed sludge concentration Sludge specific gravity
Pressed sludge volume Pressed sludge mass
1750 gallons 6 feet
93 feet 1960 gallons
38 Ibday 72 Ibday
23 Ibday
37 Ibday 01 Ibday 02 Ibday 11 Ibday
120 Ibday 980 mgkg Yes
20000 mgL 101 714 galday
7 days maximum
Includes bull=11 ft freeboard
Notes asFe as Fe(OH)3
as Mn includes Mn added with KMnO4
asMnO2
as As as As(OH) assumes 10 of Fe Mn total
Hazardous waste threshhold is 100 mgkg 2
5100 gallons 8 feet
145 feet 5480 gallons
30 gallons 2 feet
23 feet 50 gallons 10 mgL 22 Ibyear
400000 mgL 140
26 galday 300 Ibday
Includes 1 ft freeboard
Notes Polymer diluted in day tank dosed in-line w static mixer
Includes 1 ft freeboard
3 ftVday 45 tonmonth
Page 5 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Required press volume Length Width Height Initial press fill time AOD pump flow rate Compressed air flow rate HP required
Discharge piping Flow rate Desired flow velocity in piping East well line diameter Line length
4ft3
62ft 3 f t 41 ft
5 min 6 gpm
12 scfm 3hp
70 gpm 4 ftsec 3 inches
1070 feet
Assumes more than one press cycle per day as reqd Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI recommendation at peak 100 psi discharge (incorporates 2x correction for high viscosity) Assumes 4 cfmhp
Notes
Page 6 of 6
WOODARDlaquoSLCURRANEngineering bull Science bull Operations
CLIENT
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TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
$142000
$851000
$43000 $43000 $85000 $85000
$256000
$1107000
$5000 $40000 $27000
$72000 $7000
$14000
$93000
$509000
$125000
$1^51000
$60000
$129000
$3296000
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TABLE 7-14 COST ESTIMATE ALTERNATIVE SML-5B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
$129000
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TABLE 7-9 COST ESTIMATE ALTERNATIVE SML-4B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Pilot Scale Field Study Installation of 17 Injection wells
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater ExtractionTreatmentDischarge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS In Situ Chemical Oxidation injection Injection Well Maintenance
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 5 YEARS)
$75000 $85000
$92000 $100000 $443000 $11000
$676000
$1482000
$296000
$1778000
$89000 $89000
$178000 $178000
$534000
52312000
$391000 $20000
$411000 $41000 $82000
$534000
52190000
TABLE 7-9 COST ESTIMATE ALTERNATIVE SML-4B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Tretment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (730 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-4B
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
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$9359000
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Saco Municipal Landfill Feasibility Study Saco Maine
Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
1 EQUIPMENT COSTS Item Quantity
(a) Extraction System Extraction Wells with Development (Level D) 2 Pumps with VFDs and Controls 2 Flow meters (2 magmeters) 2 Piezometers (Level D) 11 Piping (HOPE)
2 inch 1160
Subtotal Contractors Profit ( 10 of equipment cost) Extraction System Subtotal
(b) Treatment System
Flow meter (2 magmeter) Mix tank (400 gal) Mixer (1 HP) KMnO4 storage tank (3800 gal w sec cont) Mixer (3 HP) Chemical feed pump (120 gpd) NaOH storage tank (1 800 gal w sec cont) Chemical feed pump (70 gpd) Spare portable mixer (1 5 HP) Oxidation tank (2000 gal) Mixer (2 HP) Lamella separator (240 sq ft) 1 Transfer tank (400 gal) 1 Transfer and backwash pumps (2 HP) 3 Greensand Filters (3 ft diam) 2 HCI storage tank (2500 gal w sec cont) 1 Chemical feed pump (80 gpd) 1 Activated alumina colums (5 ft diam 120 cu ft) 2 GAC vessels (4 daim 1800 Ib GAC) 2 Backwash holding tank (7500 gal) 1 Clearwell (2000 gal) 1 Sludge holding tank (5500 gal) 1 Air Diaphragm Pumps - Press feed and sludge trans 2
Unit Unit Cost
ea $15000 ea $3300 ea $2300 ea $3000
LF $8
ea $2300 ea $770 ea $1500 ea $10120 ea $2300 ea $850 ea $6160 ea $790 ea $1800 ea $2800 ea $2200 ea $45000 ea $770 ea $3000 ea $8000 ea $9900 ea $790 ea $26800 ea $10296 ea $7600 ea $2800 ea $6300 ea $1000
Total Cost
$30000 $6600 $4600
$33000
$9280
$83480 $8350
$91830
$2300 $770
$1500 $10120
$2300 $850
$6160 $790
$1800 $2800 $2200
$45000 $770
$9000 $16000 $9900
$790 $53600 $20592
$7600 $2800 $6300 $2000
Pagel of 2
Saco Municipal Landfill Feasibility Study Saco Maine
Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
Air Compressor (3 HP) Polymer mixing tank (50 gal) Mixer (05 HP) Chemical feed pump- polymer (120 gpd) Static mixers - in-line 3 Sludge press (4 cu ft) Fork lift (for sludge bin and chemical handling) Building Costs (65L x 45W x 1 6H)
1111211
2925
ea ea ea ea ea ea ea
SF
$1700 $330 $1300 $850 $600 $24000 $23000 $50
$1700 $330 $1300 $850 $1200 $24000 $23000 $146250
Subtotal Contractors Profit ( 10 of equipment cost) Treatment System Subtotal
$402272 $40230
$442502
(c) Surface Water Discharge System 3 HOPE Pipe Infiltration Basin (150 x 150 x 5) Fence Swing Gate
10704167600
1
LF CY
LF Ea
$9 $10 $15 $400
$9630 $41667 $9000 $400
Subtotal Sales Tax ( 6 of equipment cost) Contractors Profit ( 10 of equipment cost) Discharge System Subtotal
$9630 $580 $960
$11170
EQUIPMENT SUBTOTAL $545502
2 INSTALLATION COSTS Instrumentation (15 of Equipment Subtotal) Electrical (15 of Equipment Subtotal) Process Piping (30 of Equipment Subtotal) HVAC System (7 of Equipment Subtotal) Labor (30 of Equipment Subtotal) Field Indirect (90 of Labor Cost)
$81825 $81825
$163651 $38185
$163651 $147286
INSTALLATION SUBTOTAL $676422
TOTAL CAPITAL COSTS Note Capital Costs are rounded to the nearest thousand
$1222000
Page 2 of 2
COST CATEGORIES
Labor (1 full-time operator) Electricity Other utilities (oil phone) Chemicals Maintenance 5 of capital Sludge disposal Monitoring OfficeSuppliesMiscdisposable items
TOTAL COST
ANNUAL COSTS
$73000 $9000 $5000
$47000 $27300 $13700 $17080 $5000
$197000
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM)
POWER ESTIMATE
2 Extraction pumps 2 Continuous mixers 4 Chemical Feed Pumps 1 Transfer Pump 1 Air Compressor HVACLights Miscellaneous
j bull bull H P shy
280300100200300300200
8 r HOURS ^ K W DAY
209 24 224 24 075 24 149 24 224 6 224 18 149 24
KWH DAY shy
50 54 18 36 13 40 36
ELECTRIC POWER SUMMARY HP KW
KWH DAY
KWH YEAR
TOTAL 1680 1253 247 90182
UNIT POWER COST SO 100 |
TOTAL ANNUAL POWER COST $9000 |
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Chemical Costs
QUANTITY CHEMICAL YEAR
Sodium Hydroxide (25) 30130 Hydrochloric Acid (30) 34488 Potassium Permanganate pure solid 6117 Polymer 22 GAC 1104
Subtotal Freight (10)
SUBTOTAL CHEMICALS
Sludge Costs
ITEM Wet Tonsyr 55 Unit Hauling and Tipping cost ($WT) $250 Sludge Disposal Cost (Syr) 513695 Assuming Sludge is disposed of as hazardous waste
UNITS
Gal Gal Lbs Lbs Lbs
UNIT COST
$040 $060 $160 $250 $300
ANNUAL COST
$12100 $20693 $9800
$100 $3300
$42693 $4269
$46962
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Monitoring Costs
1 Extraction Wells (Monitored Quarterly) No of Samples = 2
1 1
MSMSD =
4
Trip Blanks =Duplicates =
Eq Blanks = 0 Total =
Cost for VOC Analysis =Cost for Metals Analysis=
Monitoring Frequency =
Cost Subtotal =
0
$147 (for VOC Method 8260) $ 181 (for TAL Metals Method SW-846)
4 times per year
$5200 per year
2
QAQC =Total = 3
0
Cost for VOC Analysis =Cost for Metals Analysis =
Monitoring Frequency =
Cost Subtotal =
Total Cost =
Treatment System Sampling (Monthly) No of Samples= 3
$150 (for VOC Method 8260) $ 180 (for TAL Metals Method S W-846)
12 times per year
511880 per year
$17080 per year
Influent Criteria Flow r^70gpm Mn --li7 mgL As Fe Jgt 45 mgL pH ^-61 units
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Source 0101 MOD Modflow modelling by JRH w 15 safety factor
Average of wells 95-4SAB and 97-14S-1 and 2 shyAverage of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB
Alkalinity 3pmgLasCaCO3 Average of wells 95-4SAB and 97-14S-1 and 2 Benzene ^2uc Average of wells 95-4SAB
Effluent Criteria Mn 084 mgL As 005 mgL Benzene 5 ugL
Assumptions All metals in reduced state Linear titration curve between pH 45 and 105
Unit Processes Wells pumps and piping KMnO4 and NaOH rapid mix addition Oxidation tank w mixer Lamella inclined plate separator Transfer tank and pumps Manganese greensand filters HCI addition Activated alumina ion exchange Granular activated carbon vessels Backwash tank Sludge thickening tank Polymer mixing tank Sludge press Discharge piping
Wells pumps and piping Desired flow velocity in piping East well flow East well line diameter
Function Deliver groundwater to treatment Oxidize Fe Mn As pH adjust to 80 Oxidize Fe Mn As pH adjust to 80 Remove majority of Fe some Mn and As Shift from gravity to pressure operation Remove Fe Mn to less than 05 ppm Adjust pH to 60 Remove As to less than 30 ppb Remove VOCs Collect and settle backwash water to minimize volume Mix sludge with polymer for enhanced dewatering Prepare polymer for mixing with sludge Press sludge for disposal Convey clean water to discharge point
Notes 4 ftsec
23 gpm 2 inches
Page 1 of 6
Saco Landfill Groundwater Pump amp Treat System
Line length Depth to screen midpoint Additional head required Total head required Pump size required West well flow West well line diameter Line length Depth to screen midpoint Additional head required Total head required Pump size required
KMnO4 and NaOH and caustic Mix tank residence time Mix tank volume Tank diameter Tank height Actual tank volume w freeboard Dose KMnO4 required
KMnO4 solution strength
KMnO4 addition rate Desired storage time KMnO4 storage volume reqd
KMnO4 Tank diameter
KMnO4 tank height Actual tank volume w freeboard Desired pH Alk per pH unit (as CaCO3) Alkalinity lost in oxidation Total alkalinity required NaOH solution strength NaOH addition rate Desired storage time NaOH storage volume reqd NaOH tank diameter NaOH tank height Actual tank volume w freeboard
Conceptual Design 580 feet 60 feet 44to76bgs
50^ feet 25 feet elevation difference + 10 psi excess 110 feet 11 hp 47 gpm
2 inches 580 feet 32 feet 18to46bgs 50 feet 82 feet 17hp
addition Notes 5 mm Reasonable time for stable pH control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
57 mgL Dose 094 Iblb Fe 192 Iblb Mn 2 Iblb As
50000 mgL
008 gpm 116 gpd 17 IbMnday
30 days 3500 gallons
7 feet
131 feet Includes 1 ft freeboard 3790 gallons
80 units 177 mgL 35 meq 15 meq 149 Ib as CaCO3lb Fe 121 Iblb Mn 2 Iblb As 61 meq 75 N 25 (ww) NaOH approx = 75N
006 gpm 83 gpd 30 days
2500 gallons 7 feet
97 feet Includes 1 ft freeboard 2790 gallons
Page 2 of 6
Saco Landfill Ground water Pump amp Treat System
Oxidation tank Oxidation tank residence time Oxidation tank volume Tank diameter Tank height Actual tank volume w freeboard
Lamella inclined plate separator
Surface loading rate
Required surface area
Unit size Number of units Approx height Approx length Approx width
Transfer tank and pumps Transfer tank residence time Transfer tank volume Tank diameter Tank height Actual tank volume w freeboard Pump capacity Pump flow Pump horsepower
Manganese greensand filters
Surface loading rate
Required surface area Required diameter
Unit size provided Diameter provided Number of units
Activated alumina ion exchange Desired pH for act alumina HC1 required to offset NaOH
Conceptual Design Notes
25 min Reaction time of 5 to 30 minutes suggested in AWWA 1800 gallons
6 feet 95 feet Includes 1 ft freeboard
2010 gallons
04 gpmfr 04 to 06 gpmsq ft recommended by Parkson
175ft2
240ft2 Unit sizes of 240480 740 and 1150 sq ft available 1 unit
13 feet Dimensions from Parkson 11 feet 6 feet
Notes 5 min Reasonable time for stable pump control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
70 ft head 30 psi 70 gpm
21 HP
3 gpmft2 3 to 5 gpm per sq ft recommended in AWWA
23 ft2
27ft
28ft2
30ft 2 units Plan to alternate units can also run in series or parallel
Notes 60 units 61 meq
Page 3 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
HC1 required to achieve setpoint 25 meq Total acidity required 86 meq HCI solution strength 9NHC1 addition rate 007 gpmDesired storage time - 30 days HCI storage volume reqd 2900 gallons HCI tank diameter 7 feet HCI tank height 111 feet Actual tank volume w freeboard 3190 gallons
Act alum surface loading rate 1 gpmft2
Required surface area 70ft2
Required diameter 47ft
Unit size provided 79ft2
Diameter provided 50ft EBCT required 50 min Volume to satisfy EBCT 47 cu ft Bed volumes to breakthrough 10000 volumes Desired time to breakthrough 90 days Bed vol reqd for breakthrough 121 cu ft Controlling bed volume 121 cu ft Number of units 2 units
Granular Activated Carbon Carbon vessels required 2 units Flow rate 700 gpm Min vessel diameter 48 inches Mass of carbon in vessel 1700 Ibs Mass of carbon used per day 3 Ibs Life of vessel 15 years
Clearwell and backwash settling tanks Filter backwash rate 175 gpm Backwash cycles per day 2 cycles Backwash duration 10 minutes Settling tank hold time 2 days Settling tank volume required 7000 gallons Settling tank diameter 9 feet Settling tank height 157 feet Actual tank volume w freeboard 7480 gallons
20 deg Be = 30 soln = 92 N 94 gpd
Includes 1 ft freeboard
1 to 5 gpm per sq ft recommended in AWWA
FromAWWAp 615 Regenerate once per quarter Complicated task
Plan to alternate units can also run in series or parallel
Notes Plan to run in series
Based on use rate of 003 lb1000 gal from Calgon
Notes Assume 250 of forward flow rate
Includes 1 ft freeboard
Page 4 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Clearwell volume required Cleanvell tank diameter Clearwell tank height Actual tank volume w freeboard
Sludge storagethickening tank Mass of Fe removed
Mass of Mn removed
Mass of As removed
Misc other metals removed Total metals removed Cone of As in dry sludge Hazardous waste Settled sludge concentration Sludge specific gravity Settled sludge volume Sludge holding between presses Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard
Polymer day tank Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard Polymer dose Polymer use
Sludge press Pressed sludge concentration Sludge specific gravity
Pressed sludge volume Pressed sludge mass
1750 gallons 6 feet
93 feet 1960 gallons
38 Ibday 72 Ibday
23 Ibday
37 Ibday 01 Ibday 02 Ibday 11 Ibday
120 Ibday 980 mgkg Yes
20000 mgL 101 714 galday
7 days maximum
Includes bull=11 ft freeboard
Notes asFe as Fe(OH)3
as Mn includes Mn added with KMnO4
asMnO2
as As as As(OH) assumes 10 of Fe Mn total
Hazardous waste threshhold is 100 mgkg 2
5100 gallons 8 feet
145 feet 5480 gallons
30 gallons 2 feet
23 feet 50 gallons 10 mgL 22 Ibyear
400000 mgL 140
26 galday 300 Ibday
Includes 1 ft freeboard
Notes Polymer diluted in day tank dosed in-line w static mixer
Includes 1 ft freeboard
3 ftVday 45 tonmonth
Page 5 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Required press volume Length Width Height Initial press fill time AOD pump flow rate Compressed air flow rate HP required
Discharge piping Flow rate Desired flow velocity in piping East well line diameter Line length
4ft3
62ft 3 f t 41 ft
5 min 6 gpm
12 scfm 3hp
70 gpm 4 ftsec 3 inches
1070 feet
Assumes more than one press cycle per day as reqd Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI recommendation at peak 100 psi discharge (incorporates 2x correction for high viscosity) Assumes 4 cfmhp
Notes
Page 6 of 6
WOODARDlaquoSLCURRANEngineering bull Science bull Operations
CLIENT
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TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
$142000
$851000
$43000 $43000 $85000 $85000
$256000
$1107000
$5000 $40000 $27000
$72000 $7000
$14000
$93000
$509000
$125000
$1^51000
$60000
$129000
$3296000
Feasibility Study 31000
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TABLE 7-14 COST ESTIMATE ALTERNATIVE SML-5B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
$129000
$6919000
Feasibility Study 31000
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(TREATMENTON-SITE DISCHARGE)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Pilot Scale Field Study Installation of 17 Injection wells
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater ExtractionTreatmentDischarge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS In Situ Chemical Oxidation injection Injection Well Maintenance
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 5 YEARS)
$75000 $85000
$92000 $100000 $443000 $11000
$676000
$1482000
$296000
$1778000
$89000 $89000
$178000 $178000
$534000
52312000
$391000 $20000
$411000 $41000 $82000
$534000
52190000
TABLE 7-9 COST ESTIMATE ALTERNATIVE SML-4B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Tretment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (730 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-4B
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
S129000
$9359000
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Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
1 EQUIPMENT COSTS Item Quantity
(a) Extraction System Extraction Wells with Development (Level D) 2 Pumps with VFDs and Controls 2 Flow meters (2 magmeters) 2 Piezometers (Level D) 11 Piping (HOPE)
2 inch 1160
Subtotal Contractors Profit ( 10 of equipment cost) Extraction System Subtotal
(b) Treatment System
Flow meter (2 magmeter) Mix tank (400 gal) Mixer (1 HP) KMnO4 storage tank (3800 gal w sec cont) Mixer (3 HP) Chemical feed pump (120 gpd) NaOH storage tank (1 800 gal w sec cont) Chemical feed pump (70 gpd) Spare portable mixer (1 5 HP) Oxidation tank (2000 gal) Mixer (2 HP) Lamella separator (240 sq ft) 1 Transfer tank (400 gal) 1 Transfer and backwash pumps (2 HP) 3 Greensand Filters (3 ft diam) 2 HCI storage tank (2500 gal w sec cont) 1 Chemical feed pump (80 gpd) 1 Activated alumina colums (5 ft diam 120 cu ft) 2 GAC vessels (4 daim 1800 Ib GAC) 2 Backwash holding tank (7500 gal) 1 Clearwell (2000 gal) 1 Sludge holding tank (5500 gal) 1 Air Diaphragm Pumps - Press feed and sludge trans 2
Unit Unit Cost
ea $15000 ea $3300 ea $2300 ea $3000
LF $8
ea $2300 ea $770 ea $1500 ea $10120 ea $2300 ea $850 ea $6160 ea $790 ea $1800 ea $2800 ea $2200 ea $45000 ea $770 ea $3000 ea $8000 ea $9900 ea $790 ea $26800 ea $10296 ea $7600 ea $2800 ea $6300 ea $1000
Total Cost
$30000 $6600 $4600
$33000
$9280
$83480 $8350
$91830
$2300 $770
$1500 $10120
$2300 $850
$6160 $790
$1800 $2800 $2200
$45000 $770
$9000 $16000 $9900
$790 $53600 $20592
$7600 $2800 $6300 $2000
Pagel of 2
Saco Municipal Landfill Feasibility Study Saco Maine
Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
Air Compressor (3 HP) Polymer mixing tank (50 gal) Mixer (05 HP) Chemical feed pump- polymer (120 gpd) Static mixers - in-line 3 Sludge press (4 cu ft) Fork lift (for sludge bin and chemical handling) Building Costs (65L x 45W x 1 6H)
1111211
2925
ea ea ea ea ea ea ea
SF
$1700 $330 $1300 $850 $600 $24000 $23000 $50
$1700 $330 $1300 $850 $1200 $24000 $23000 $146250
Subtotal Contractors Profit ( 10 of equipment cost) Treatment System Subtotal
$402272 $40230
$442502
(c) Surface Water Discharge System 3 HOPE Pipe Infiltration Basin (150 x 150 x 5) Fence Swing Gate
10704167600
1
LF CY
LF Ea
$9 $10 $15 $400
$9630 $41667 $9000 $400
Subtotal Sales Tax ( 6 of equipment cost) Contractors Profit ( 10 of equipment cost) Discharge System Subtotal
$9630 $580 $960
$11170
EQUIPMENT SUBTOTAL $545502
2 INSTALLATION COSTS Instrumentation (15 of Equipment Subtotal) Electrical (15 of Equipment Subtotal) Process Piping (30 of Equipment Subtotal) HVAC System (7 of Equipment Subtotal) Labor (30 of Equipment Subtotal) Field Indirect (90 of Labor Cost)
$81825 $81825
$163651 $38185
$163651 $147286
INSTALLATION SUBTOTAL $676422
TOTAL CAPITAL COSTS Note Capital Costs are rounded to the nearest thousand
$1222000
Page 2 of 2
COST CATEGORIES
Labor (1 full-time operator) Electricity Other utilities (oil phone) Chemicals Maintenance 5 of capital Sludge disposal Monitoring OfficeSuppliesMiscdisposable items
TOTAL COST
ANNUAL COSTS
$73000 $9000 $5000
$47000 $27300 $13700 $17080 $5000
$197000
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM)
POWER ESTIMATE
2 Extraction pumps 2 Continuous mixers 4 Chemical Feed Pumps 1 Transfer Pump 1 Air Compressor HVACLights Miscellaneous
j bull bull H P shy
280300100200300300200
8 r HOURS ^ K W DAY
209 24 224 24 075 24 149 24 224 6 224 18 149 24
KWH DAY shy
50 54 18 36 13 40 36
ELECTRIC POWER SUMMARY HP KW
KWH DAY
KWH YEAR
TOTAL 1680 1253 247 90182
UNIT POWER COST SO 100 |
TOTAL ANNUAL POWER COST $9000 |
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Chemical Costs
QUANTITY CHEMICAL YEAR
Sodium Hydroxide (25) 30130 Hydrochloric Acid (30) 34488 Potassium Permanganate pure solid 6117 Polymer 22 GAC 1104
Subtotal Freight (10)
SUBTOTAL CHEMICALS
Sludge Costs
ITEM Wet Tonsyr 55 Unit Hauling and Tipping cost ($WT) $250 Sludge Disposal Cost (Syr) 513695 Assuming Sludge is disposed of as hazardous waste
UNITS
Gal Gal Lbs Lbs Lbs
UNIT COST
$040 $060 $160 $250 $300
ANNUAL COST
$12100 $20693 $9800
$100 $3300
$42693 $4269
$46962
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Monitoring Costs
1 Extraction Wells (Monitored Quarterly) No of Samples = 2
1 1
MSMSD =
4
Trip Blanks =Duplicates =
Eq Blanks = 0 Total =
Cost for VOC Analysis =Cost for Metals Analysis=
Monitoring Frequency =
Cost Subtotal =
0
$147 (for VOC Method 8260) $ 181 (for TAL Metals Method SW-846)
4 times per year
$5200 per year
2
QAQC =Total = 3
0
Cost for VOC Analysis =Cost for Metals Analysis =
Monitoring Frequency =
Cost Subtotal =
Total Cost =
Treatment System Sampling (Monthly) No of Samples= 3
$150 (for VOC Method 8260) $ 180 (for TAL Metals Method S W-846)
12 times per year
511880 per year
$17080 per year
Influent Criteria Flow r^70gpm Mn --li7 mgL As Fe Jgt 45 mgL pH ^-61 units
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Source 0101 MOD Modflow modelling by JRH w 15 safety factor
Average of wells 95-4SAB and 97-14S-1 and 2 shyAverage of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB
Alkalinity 3pmgLasCaCO3 Average of wells 95-4SAB and 97-14S-1 and 2 Benzene ^2uc Average of wells 95-4SAB
Effluent Criteria Mn 084 mgL As 005 mgL Benzene 5 ugL
Assumptions All metals in reduced state Linear titration curve between pH 45 and 105
Unit Processes Wells pumps and piping KMnO4 and NaOH rapid mix addition Oxidation tank w mixer Lamella inclined plate separator Transfer tank and pumps Manganese greensand filters HCI addition Activated alumina ion exchange Granular activated carbon vessels Backwash tank Sludge thickening tank Polymer mixing tank Sludge press Discharge piping
Wells pumps and piping Desired flow velocity in piping East well flow East well line diameter
Function Deliver groundwater to treatment Oxidize Fe Mn As pH adjust to 80 Oxidize Fe Mn As pH adjust to 80 Remove majority of Fe some Mn and As Shift from gravity to pressure operation Remove Fe Mn to less than 05 ppm Adjust pH to 60 Remove As to less than 30 ppb Remove VOCs Collect and settle backwash water to minimize volume Mix sludge with polymer for enhanced dewatering Prepare polymer for mixing with sludge Press sludge for disposal Convey clean water to discharge point
Notes 4 ftsec
23 gpm 2 inches
Page 1 of 6
Saco Landfill Groundwater Pump amp Treat System
Line length Depth to screen midpoint Additional head required Total head required Pump size required West well flow West well line diameter Line length Depth to screen midpoint Additional head required Total head required Pump size required
KMnO4 and NaOH and caustic Mix tank residence time Mix tank volume Tank diameter Tank height Actual tank volume w freeboard Dose KMnO4 required
KMnO4 solution strength
KMnO4 addition rate Desired storage time KMnO4 storage volume reqd
KMnO4 Tank diameter
KMnO4 tank height Actual tank volume w freeboard Desired pH Alk per pH unit (as CaCO3) Alkalinity lost in oxidation Total alkalinity required NaOH solution strength NaOH addition rate Desired storage time NaOH storage volume reqd NaOH tank diameter NaOH tank height Actual tank volume w freeboard
Conceptual Design 580 feet 60 feet 44to76bgs
50^ feet 25 feet elevation difference + 10 psi excess 110 feet 11 hp 47 gpm
2 inches 580 feet 32 feet 18to46bgs 50 feet 82 feet 17hp
addition Notes 5 mm Reasonable time for stable pH control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
57 mgL Dose 094 Iblb Fe 192 Iblb Mn 2 Iblb As
50000 mgL
008 gpm 116 gpd 17 IbMnday
30 days 3500 gallons
7 feet
131 feet Includes 1 ft freeboard 3790 gallons
80 units 177 mgL 35 meq 15 meq 149 Ib as CaCO3lb Fe 121 Iblb Mn 2 Iblb As 61 meq 75 N 25 (ww) NaOH approx = 75N
006 gpm 83 gpd 30 days
2500 gallons 7 feet
97 feet Includes 1 ft freeboard 2790 gallons
Page 2 of 6
Saco Landfill Ground water Pump amp Treat System
Oxidation tank Oxidation tank residence time Oxidation tank volume Tank diameter Tank height Actual tank volume w freeboard
Lamella inclined plate separator
Surface loading rate
Required surface area
Unit size Number of units Approx height Approx length Approx width
Transfer tank and pumps Transfer tank residence time Transfer tank volume Tank diameter Tank height Actual tank volume w freeboard Pump capacity Pump flow Pump horsepower
Manganese greensand filters
Surface loading rate
Required surface area Required diameter
Unit size provided Diameter provided Number of units
Activated alumina ion exchange Desired pH for act alumina HC1 required to offset NaOH
Conceptual Design Notes
25 min Reaction time of 5 to 30 minutes suggested in AWWA 1800 gallons
6 feet 95 feet Includes 1 ft freeboard
2010 gallons
04 gpmfr 04 to 06 gpmsq ft recommended by Parkson
175ft2
240ft2 Unit sizes of 240480 740 and 1150 sq ft available 1 unit
13 feet Dimensions from Parkson 11 feet 6 feet
Notes 5 min Reasonable time for stable pump control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
70 ft head 30 psi 70 gpm
21 HP
3 gpmft2 3 to 5 gpm per sq ft recommended in AWWA
23 ft2
27ft
28ft2
30ft 2 units Plan to alternate units can also run in series or parallel
Notes 60 units 61 meq
Page 3 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
HC1 required to achieve setpoint 25 meq Total acidity required 86 meq HCI solution strength 9NHC1 addition rate 007 gpmDesired storage time - 30 days HCI storage volume reqd 2900 gallons HCI tank diameter 7 feet HCI tank height 111 feet Actual tank volume w freeboard 3190 gallons
Act alum surface loading rate 1 gpmft2
Required surface area 70ft2
Required diameter 47ft
Unit size provided 79ft2
Diameter provided 50ft EBCT required 50 min Volume to satisfy EBCT 47 cu ft Bed volumes to breakthrough 10000 volumes Desired time to breakthrough 90 days Bed vol reqd for breakthrough 121 cu ft Controlling bed volume 121 cu ft Number of units 2 units
Granular Activated Carbon Carbon vessels required 2 units Flow rate 700 gpm Min vessel diameter 48 inches Mass of carbon in vessel 1700 Ibs Mass of carbon used per day 3 Ibs Life of vessel 15 years
Clearwell and backwash settling tanks Filter backwash rate 175 gpm Backwash cycles per day 2 cycles Backwash duration 10 minutes Settling tank hold time 2 days Settling tank volume required 7000 gallons Settling tank diameter 9 feet Settling tank height 157 feet Actual tank volume w freeboard 7480 gallons
20 deg Be = 30 soln = 92 N 94 gpd
Includes 1 ft freeboard
1 to 5 gpm per sq ft recommended in AWWA
FromAWWAp 615 Regenerate once per quarter Complicated task
Plan to alternate units can also run in series or parallel
Notes Plan to run in series
Based on use rate of 003 lb1000 gal from Calgon
Notes Assume 250 of forward flow rate
Includes 1 ft freeboard
Page 4 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Clearwell volume required Cleanvell tank diameter Clearwell tank height Actual tank volume w freeboard
Sludge storagethickening tank Mass of Fe removed
Mass of Mn removed
Mass of As removed
Misc other metals removed Total metals removed Cone of As in dry sludge Hazardous waste Settled sludge concentration Sludge specific gravity Settled sludge volume Sludge holding between presses Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard
Polymer day tank Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard Polymer dose Polymer use
Sludge press Pressed sludge concentration Sludge specific gravity
Pressed sludge volume Pressed sludge mass
1750 gallons 6 feet
93 feet 1960 gallons
38 Ibday 72 Ibday
23 Ibday
37 Ibday 01 Ibday 02 Ibday 11 Ibday
120 Ibday 980 mgkg Yes
20000 mgL 101 714 galday
7 days maximum
Includes bull=11 ft freeboard
Notes asFe as Fe(OH)3
as Mn includes Mn added with KMnO4
asMnO2
as As as As(OH) assumes 10 of Fe Mn total
Hazardous waste threshhold is 100 mgkg 2
5100 gallons 8 feet
145 feet 5480 gallons
30 gallons 2 feet
23 feet 50 gallons 10 mgL 22 Ibyear
400000 mgL 140
26 galday 300 Ibday
Includes 1 ft freeboard
Notes Polymer diluted in day tank dosed in-line w static mixer
Includes 1 ft freeboard
3 ftVday 45 tonmonth
Page 5 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Required press volume Length Width Height Initial press fill time AOD pump flow rate Compressed air flow rate HP required
Discharge piping Flow rate Desired flow velocity in piping East well line diameter Line length
4ft3
62ft 3 f t 41 ft
5 min 6 gpm
12 scfm 3hp
70 gpm 4 ftsec 3 inches
1070 feet
Assumes more than one press cycle per day as reqd Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI recommendation at peak 100 psi discharge (incorporates 2x correction for high viscosity) Assumes 4 cfmhp
Notes
Page 6 of 6
WOODARDlaquoSLCURRANEngineering bull Science bull Operations
CLIENT
PROJECT H^r^i i^d-ftli
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TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
$142000
$851000
$43000 $43000 $85000 $85000
$256000
$1107000
$5000 $40000 $27000
$72000 $7000
$14000
$93000
$509000
$125000
$1^51000
$60000
$129000
$3296000
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TABLE 7-14 COST ESTIMATE ALTERNATIVE SML-5B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
$129000
$6919000
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TABLE 7-9 COST ESTIMATE ALTERNATIVE SML-4B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Tretment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on OampM Costs
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (730 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-4B
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
S129000
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Saco Municipal Landfill Feasibility Study Saco Maine
Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
1 EQUIPMENT COSTS Item Quantity
(a) Extraction System Extraction Wells with Development (Level D) 2 Pumps with VFDs and Controls 2 Flow meters (2 magmeters) 2 Piezometers (Level D) 11 Piping (HOPE)
2 inch 1160
Subtotal Contractors Profit ( 10 of equipment cost) Extraction System Subtotal
(b) Treatment System
Flow meter (2 magmeter) Mix tank (400 gal) Mixer (1 HP) KMnO4 storage tank (3800 gal w sec cont) Mixer (3 HP) Chemical feed pump (120 gpd) NaOH storage tank (1 800 gal w sec cont) Chemical feed pump (70 gpd) Spare portable mixer (1 5 HP) Oxidation tank (2000 gal) Mixer (2 HP) Lamella separator (240 sq ft) 1 Transfer tank (400 gal) 1 Transfer and backwash pumps (2 HP) 3 Greensand Filters (3 ft diam) 2 HCI storage tank (2500 gal w sec cont) 1 Chemical feed pump (80 gpd) 1 Activated alumina colums (5 ft diam 120 cu ft) 2 GAC vessels (4 daim 1800 Ib GAC) 2 Backwash holding tank (7500 gal) 1 Clearwell (2000 gal) 1 Sludge holding tank (5500 gal) 1 Air Diaphragm Pumps - Press feed and sludge trans 2
Unit Unit Cost
ea $15000 ea $3300 ea $2300 ea $3000
LF $8
ea $2300 ea $770 ea $1500 ea $10120 ea $2300 ea $850 ea $6160 ea $790 ea $1800 ea $2800 ea $2200 ea $45000 ea $770 ea $3000 ea $8000 ea $9900 ea $790 ea $26800 ea $10296 ea $7600 ea $2800 ea $6300 ea $1000
Total Cost
$30000 $6600 $4600
$33000
$9280
$83480 $8350
$91830
$2300 $770
$1500 $10120
$2300 $850
$6160 $790
$1800 $2800 $2200
$45000 $770
$9000 $16000 $9900
$790 $53600 $20592
$7600 $2800 $6300 $2000
Pagel of 2
Saco Municipal Landfill Feasibility Study Saco Maine
Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
Air Compressor (3 HP) Polymer mixing tank (50 gal) Mixer (05 HP) Chemical feed pump- polymer (120 gpd) Static mixers - in-line 3 Sludge press (4 cu ft) Fork lift (for sludge bin and chemical handling) Building Costs (65L x 45W x 1 6H)
1111211
2925
ea ea ea ea ea ea ea
SF
$1700 $330 $1300 $850 $600 $24000 $23000 $50
$1700 $330 $1300 $850 $1200 $24000 $23000 $146250
Subtotal Contractors Profit ( 10 of equipment cost) Treatment System Subtotal
$402272 $40230
$442502
(c) Surface Water Discharge System 3 HOPE Pipe Infiltration Basin (150 x 150 x 5) Fence Swing Gate
10704167600
1
LF CY
LF Ea
$9 $10 $15 $400
$9630 $41667 $9000 $400
Subtotal Sales Tax ( 6 of equipment cost) Contractors Profit ( 10 of equipment cost) Discharge System Subtotal
$9630 $580 $960
$11170
EQUIPMENT SUBTOTAL $545502
2 INSTALLATION COSTS Instrumentation (15 of Equipment Subtotal) Electrical (15 of Equipment Subtotal) Process Piping (30 of Equipment Subtotal) HVAC System (7 of Equipment Subtotal) Labor (30 of Equipment Subtotal) Field Indirect (90 of Labor Cost)
$81825 $81825
$163651 $38185
$163651 $147286
INSTALLATION SUBTOTAL $676422
TOTAL CAPITAL COSTS Note Capital Costs are rounded to the nearest thousand
$1222000
Page 2 of 2
COST CATEGORIES
Labor (1 full-time operator) Electricity Other utilities (oil phone) Chemicals Maintenance 5 of capital Sludge disposal Monitoring OfficeSuppliesMiscdisposable items
TOTAL COST
ANNUAL COSTS
$73000 $9000 $5000
$47000 $27300 $13700 $17080 $5000
$197000
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM)
POWER ESTIMATE
2 Extraction pumps 2 Continuous mixers 4 Chemical Feed Pumps 1 Transfer Pump 1 Air Compressor HVACLights Miscellaneous
j bull bull H P shy
280300100200300300200
8 r HOURS ^ K W DAY
209 24 224 24 075 24 149 24 224 6 224 18 149 24
KWH DAY shy
50 54 18 36 13 40 36
ELECTRIC POWER SUMMARY HP KW
KWH DAY
KWH YEAR
TOTAL 1680 1253 247 90182
UNIT POWER COST SO 100 |
TOTAL ANNUAL POWER COST $9000 |
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Chemical Costs
QUANTITY CHEMICAL YEAR
Sodium Hydroxide (25) 30130 Hydrochloric Acid (30) 34488 Potassium Permanganate pure solid 6117 Polymer 22 GAC 1104
Subtotal Freight (10)
SUBTOTAL CHEMICALS
Sludge Costs
ITEM Wet Tonsyr 55 Unit Hauling and Tipping cost ($WT) $250 Sludge Disposal Cost (Syr) 513695 Assuming Sludge is disposed of as hazardous waste
UNITS
Gal Gal Lbs Lbs Lbs
UNIT COST
$040 $060 $160 $250 $300
ANNUAL COST
$12100 $20693 $9800
$100 $3300
$42693 $4269
$46962
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Monitoring Costs
1 Extraction Wells (Monitored Quarterly) No of Samples = 2
1 1
MSMSD =
4
Trip Blanks =Duplicates =
Eq Blanks = 0 Total =
Cost for VOC Analysis =Cost for Metals Analysis=
Monitoring Frequency =
Cost Subtotal =
0
$147 (for VOC Method 8260) $ 181 (for TAL Metals Method SW-846)
4 times per year
$5200 per year
2
QAQC =Total = 3
0
Cost for VOC Analysis =Cost for Metals Analysis =
Monitoring Frequency =
Cost Subtotal =
Total Cost =
Treatment System Sampling (Monthly) No of Samples= 3
$150 (for VOC Method 8260) $ 180 (for TAL Metals Method S W-846)
12 times per year
511880 per year
$17080 per year
Influent Criteria Flow r^70gpm Mn --li7 mgL As Fe Jgt 45 mgL pH ^-61 units
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Source 0101 MOD Modflow modelling by JRH w 15 safety factor
Average of wells 95-4SAB and 97-14S-1 and 2 shyAverage of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB
Alkalinity 3pmgLasCaCO3 Average of wells 95-4SAB and 97-14S-1 and 2 Benzene ^2uc Average of wells 95-4SAB
Effluent Criteria Mn 084 mgL As 005 mgL Benzene 5 ugL
Assumptions All metals in reduced state Linear titration curve between pH 45 and 105
Unit Processes Wells pumps and piping KMnO4 and NaOH rapid mix addition Oxidation tank w mixer Lamella inclined plate separator Transfer tank and pumps Manganese greensand filters HCI addition Activated alumina ion exchange Granular activated carbon vessels Backwash tank Sludge thickening tank Polymer mixing tank Sludge press Discharge piping
Wells pumps and piping Desired flow velocity in piping East well flow East well line diameter
Function Deliver groundwater to treatment Oxidize Fe Mn As pH adjust to 80 Oxidize Fe Mn As pH adjust to 80 Remove majority of Fe some Mn and As Shift from gravity to pressure operation Remove Fe Mn to less than 05 ppm Adjust pH to 60 Remove As to less than 30 ppb Remove VOCs Collect and settle backwash water to minimize volume Mix sludge with polymer for enhanced dewatering Prepare polymer for mixing with sludge Press sludge for disposal Convey clean water to discharge point
Notes 4 ftsec
23 gpm 2 inches
Page 1 of 6
Saco Landfill Groundwater Pump amp Treat System
Line length Depth to screen midpoint Additional head required Total head required Pump size required West well flow West well line diameter Line length Depth to screen midpoint Additional head required Total head required Pump size required
KMnO4 and NaOH and caustic Mix tank residence time Mix tank volume Tank diameter Tank height Actual tank volume w freeboard Dose KMnO4 required
KMnO4 solution strength
KMnO4 addition rate Desired storage time KMnO4 storage volume reqd
KMnO4 Tank diameter
KMnO4 tank height Actual tank volume w freeboard Desired pH Alk per pH unit (as CaCO3) Alkalinity lost in oxidation Total alkalinity required NaOH solution strength NaOH addition rate Desired storage time NaOH storage volume reqd NaOH tank diameter NaOH tank height Actual tank volume w freeboard
Conceptual Design 580 feet 60 feet 44to76bgs
50^ feet 25 feet elevation difference + 10 psi excess 110 feet 11 hp 47 gpm
2 inches 580 feet 32 feet 18to46bgs 50 feet 82 feet 17hp
addition Notes 5 mm Reasonable time for stable pH control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
57 mgL Dose 094 Iblb Fe 192 Iblb Mn 2 Iblb As
50000 mgL
008 gpm 116 gpd 17 IbMnday
30 days 3500 gallons
7 feet
131 feet Includes 1 ft freeboard 3790 gallons
80 units 177 mgL 35 meq 15 meq 149 Ib as CaCO3lb Fe 121 Iblb Mn 2 Iblb As 61 meq 75 N 25 (ww) NaOH approx = 75N
006 gpm 83 gpd 30 days
2500 gallons 7 feet
97 feet Includes 1 ft freeboard 2790 gallons
Page 2 of 6
Saco Landfill Ground water Pump amp Treat System
Oxidation tank Oxidation tank residence time Oxidation tank volume Tank diameter Tank height Actual tank volume w freeboard
Lamella inclined plate separator
Surface loading rate
Required surface area
Unit size Number of units Approx height Approx length Approx width
Transfer tank and pumps Transfer tank residence time Transfer tank volume Tank diameter Tank height Actual tank volume w freeboard Pump capacity Pump flow Pump horsepower
Manganese greensand filters
Surface loading rate
Required surface area Required diameter
Unit size provided Diameter provided Number of units
Activated alumina ion exchange Desired pH for act alumina HC1 required to offset NaOH
Conceptual Design Notes
25 min Reaction time of 5 to 30 minutes suggested in AWWA 1800 gallons
6 feet 95 feet Includes 1 ft freeboard
2010 gallons
04 gpmfr 04 to 06 gpmsq ft recommended by Parkson
175ft2
240ft2 Unit sizes of 240480 740 and 1150 sq ft available 1 unit
13 feet Dimensions from Parkson 11 feet 6 feet
Notes 5 min Reasonable time for stable pump control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
70 ft head 30 psi 70 gpm
21 HP
3 gpmft2 3 to 5 gpm per sq ft recommended in AWWA
23 ft2
27ft
28ft2
30ft 2 units Plan to alternate units can also run in series or parallel
Notes 60 units 61 meq
Page 3 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
HC1 required to achieve setpoint 25 meq Total acidity required 86 meq HCI solution strength 9NHC1 addition rate 007 gpmDesired storage time - 30 days HCI storage volume reqd 2900 gallons HCI tank diameter 7 feet HCI tank height 111 feet Actual tank volume w freeboard 3190 gallons
Act alum surface loading rate 1 gpmft2
Required surface area 70ft2
Required diameter 47ft
Unit size provided 79ft2
Diameter provided 50ft EBCT required 50 min Volume to satisfy EBCT 47 cu ft Bed volumes to breakthrough 10000 volumes Desired time to breakthrough 90 days Bed vol reqd for breakthrough 121 cu ft Controlling bed volume 121 cu ft Number of units 2 units
Granular Activated Carbon Carbon vessels required 2 units Flow rate 700 gpm Min vessel diameter 48 inches Mass of carbon in vessel 1700 Ibs Mass of carbon used per day 3 Ibs Life of vessel 15 years
Clearwell and backwash settling tanks Filter backwash rate 175 gpm Backwash cycles per day 2 cycles Backwash duration 10 minutes Settling tank hold time 2 days Settling tank volume required 7000 gallons Settling tank diameter 9 feet Settling tank height 157 feet Actual tank volume w freeboard 7480 gallons
20 deg Be = 30 soln = 92 N 94 gpd
Includes 1 ft freeboard
1 to 5 gpm per sq ft recommended in AWWA
FromAWWAp 615 Regenerate once per quarter Complicated task
Plan to alternate units can also run in series or parallel
Notes Plan to run in series
Based on use rate of 003 lb1000 gal from Calgon
Notes Assume 250 of forward flow rate
Includes 1 ft freeboard
Page 4 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Clearwell volume required Cleanvell tank diameter Clearwell tank height Actual tank volume w freeboard
Sludge storagethickening tank Mass of Fe removed
Mass of Mn removed
Mass of As removed
Misc other metals removed Total metals removed Cone of As in dry sludge Hazardous waste Settled sludge concentration Sludge specific gravity Settled sludge volume Sludge holding between presses Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard
Polymer day tank Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard Polymer dose Polymer use
Sludge press Pressed sludge concentration Sludge specific gravity
Pressed sludge volume Pressed sludge mass
1750 gallons 6 feet
93 feet 1960 gallons
38 Ibday 72 Ibday
23 Ibday
37 Ibday 01 Ibday 02 Ibday 11 Ibday
120 Ibday 980 mgkg Yes
20000 mgL 101 714 galday
7 days maximum
Includes bull=11 ft freeboard
Notes asFe as Fe(OH)3
as Mn includes Mn added with KMnO4
asMnO2
as As as As(OH) assumes 10 of Fe Mn total
Hazardous waste threshhold is 100 mgkg 2
5100 gallons 8 feet
145 feet 5480 gallons
30 gallons 2 feet
23 feet 50 gallons 10 mgL 22 Ibyear
400000 mgL 140
26 galday 300 Ibday
Includes 1 ft freeboard
Notes Polymer diluted in day tank dosed in-line w static mixer
Includes 1 ft freeboard
3 ftVday 45 tonmonth
Page 5 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Required press volume Length Width Height Initial press fill time AOD pump flow rate Compressed air flow rate HP required
Discharge piping Flow rate Desired flow velocity in piping East well line diameter Line length
4ft3
62ft 3 f t 41 ft
5 min 6 gpm
12 scfm 3hp
70 gpm 4 ftsec 3 inches
1070 feet
Assumes more than one press cycle per day as reqd Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI recommendation at peak 100 psi discharge (incorporates 2x correction for high viscosity) Assumes 4 cfmhp
Notes
Page 6 of 6
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TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
$142000
$851000
$43000 $43000 $85000 $85000
$256000
$1107000
$5000 $40000 $27000
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$14000
$93000
$509000
$125000
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$129000
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FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
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Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
1 EQUIPMENT COSTS Item Quantity
(a) Extraction System Extraction Wells with Development (Level D) 2 Pumps with VFDs and Controls 2 Flow meters (2 magmeters) 2 Piezometers (Level D) 11 Piping (HOPE)
2 inch 1160
Subtotal Contractors Profit ( 10 of equipment cost) Extraction System Subtotal
(b) Treatment System
Flow meter (2 magmeter) Mix tank (400 gal) Mixer (1 HP) KMnO4 storage tank (3800 gal w sec cont) Mixer (3 HP) Chemical feed pump (120 gpd) NaOH storage tank (1 800 gal w sec cont) Chemical feed pump (70 gpd) Spare portable mixer (1 5 HP) Oxidation tank (2000 gal) Mixer (2 HP) Lamella separator (240 sq ft) 1 Transfer tank (400 gal) 1 Transfer and backwash pumps (2 HP) 3 Greensand Filters (3 ft diam) 2 HCI storage tank (2500 gal w sec cont) 1 Chemical feed pump (80 gpd) 1 Activated alumina colums (5 ft diam 120 cu ft) 2 GAC vessels (4 daim 1800 Ib GAC) 2 Backwash holding tank (7500 gal) 1 Clearwell (2000 gal) 1 Sludge holding tank (5500 gal) 1 Air Diaphragm Pumps - Press feed and sludge trans 2
Unit Unit Cost
ea $15000 ea $3300 ea $2300 ea $3000
LF $8
ea $2300 ea $770 ea $1500 ea $10120 ea $2300 ea $850 ea $6160 ea $790 ea $1800 ea $2800 ea $2200 ea $45000 ea $770 ea $3000 ea $8000 ea $9900 ea $790 ea $26800 ea $10296 ea $7600 ea $2800 ea $6300 ea $1000
Total Cost
$30000 $6600 $4600
$33000
$9280
$83480 $8350
$91830
$2300 $770
$1500 $10120
$2300 $850
$6160 $790
$1800 $2800 $2200
$45000 $770
$9000 $16000 $9900
$790 $53600 $20592
$7600 $2800 $6300 $2000
Pagel of 2
Saco Municipal Landfill Feasibility Study Saco Maine
Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
Air Compressor (3 HP) Polymer mixing tank (50 gal) Mixer (05 HP) Chemical feed pump- polymer (120 gpd) Static mixers - in-line 3 Sludge press (4 cu ft) Fork lift (for sludge bin and chemical handling) Building Costs (65L x 45W x 1 6H)
1111211
2925
ea ea ea ea ea ea ea
SF
$1700 $330 $1300 $850 $600 $24000 $23000 $50
$1700 $330 $1300 $850 $1200 $24000 $23000 $146250
Subtotal Contractors Profit ( 10 of equipment cost) Treatment System Subtotal
$402272 $40230
$442502
(c) Surface Water Discharge System 3 HOPE Pipe Infiltration Basin (150 x 150 x 5) Fence Swing Gate
10704167600
1
LF CY
LF Ea
$9 $10 $15 $400
$9630 $41667 $9000 $400
Subtotal Sales Tax ( 6 of equipment cost) Contractors Profit ( 10 of equipment cost) Discharge System Subtotal
$9630 $580 $960
$11170
EQUIPMENT SUBTOTAL $545502
2 INSTALLATION COSTS Instrumentation (15 of Equipment Subtotal) Electrical (15 of Equipment Subtotal) Process Piping (30 of Equipment Subtotal) HVAC System (7 of Equipment Subtotal) Labor (30 of Equipment Subtotal) Field Indirect (90 of Labor Cost)
$81825 $81825
$163651 $38185
$163651 $147286
INSTALLATION SUBTOTAL $676422
TOTAL CAPITAL COSTS Note Capital Costs are rounded to the nearest thousand
$1222000
Page 2 of 2
COST CATEGORIES
Labor (1 full-time operator) Electricity Other utilities (oil phone) Chemicals Maintenance 5 of capital Sludge disposal Monitoring OfficeSuppliesMiscdisposable items
TOTAL COST
ANNUAL COSTS
$73000 $9000 $5000
$47000 $27300 $13700 $17080 $5000
$197000
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM)
POWER ESTIMATE
2 Extraction pumps 2 Continuous mixers 4 Chemical Feed Pumps 1 Transfer Pump 1 Air Compressor HVACLights Miscellaneous
j bull bull H P shy
280300100200300300200
8 r HOURS ^ K W DAY
209 24 224 24 075 24 149 24 224 6 224 18 149 24
KWH DAY shy
50 54 18 36 13 40 36
ELECTRIC POWER SUMMARY HP KW
KWH DAY
KWH YEAR
TOTAL 1680 1253 247 90182
UNIT POWER COST SO 100 |
TOTAL ANNUAL POWER COST $9000 |
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Chemical Costs
QUANTITY CHEMICAL YEAR
Sodium Hydroxide (25) 30130 Hydrochloric Acid (30) 34488 Potassium Permanganate pure solid 6117 Polymer 22 GAC 1104
Subtotal Freight (10)
SUBTOTAL CHEMICALS
Sludge Costs
ITEM Wet Tonsyr 55 Unit Hauling and Tipping cost ($WT) $250 Sludge Disposal Cost (Syr) 513695 Assuming Sludge is disposed of as hazardous waste
UNITS
Gal Gal Lbs Lbs Lbs
UNIT COST
$040 $060 $160 $250 $300
ANNUAL COST
$12100 $20693 $9800
$100 $3300
$42693 $4269
$46962
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Monitoring Costs
1 Extraction Wells (Monitored Quarterly) No of Samples = 2
1 1
MSMSD =
4
Trip Blanks =Duplicates =
Eq Blanks = 0 Total =
Cost for VOC Analysis =Cost for Metals Analysis=
Monitoring Frequency =
Cost Subtotal =
0
$147 (for VOC Method 8260) $ 181 (for TAL Metals Method SW-846)
4 times per year
$5200 per year
2
QAQC =Total = 3
0
Cost for VOC Analysis =Cost for Metals Analysis =
Monitoring Frequency =
Cost Subtotal =
Total Cost =
Treatment System Sampling (Monthly) No of Samples= 3
$150 (for VOC Method 8260) $ 180 (for TAL Metals Method S W-846)
12 times per year
511880 per year
$17080 per year
Influent Criteria Flow r^70gpm Mn --li7 mgL As Fe Jgt 45 mgL pH ^-61 units
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Source 0101 MOD Modflow modelling by JRH w 15 safety factor
Average of wells 95-4SAB and 97-14S-1 and 2 shyAverage of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB
Alkalinity 3pmgLasCaCO3 Average of wells 95-4SAB and 97-14S-1 and 2 Benzene ^2uc Average of wells 95-4SAB
Effluent Criteria Mn 084 mgL As 005 mgL Benzene 5 ugL
Assumptions All metals in reduced state Linear titration curve between pH 45 and 105
Unit Processes Wells pumps and piping KMnO4 and NaOH rapid mix addition Oxidation tank w mixer Lamella inclined plate separator Transfer tank and pumps Manganese greensand filters HCI addition Activated alumina ion exchange Granular activated carbon vessels Backwash tank Sludge thickening tank Polymer mixing tank Sludge press Discharge piping
Wells pumps and piping Desired flow velocity in piping East well flow East well line diameter
Function Deliver groundwater to treatment Oxidize Fe Mn As pH adjust to 80 Oxidize Fe Mn As pH adjust to 80 Remove majority of Fe some Mn and As Shift from gravity to pressure operation Remove Fe Mn to less than 05 ppm Adjust pH to 60 Remove As to less than 30 ppb Remove VOCs Collect and settle backwash water to minimize volume Mix sludge with polymer for enhanced dewatering Prepare polymer for mixing with sludge Press sludge for disposal Convey clean water to discharge point
Notes 4 ftsec
23 gpm 2 inches
Page 1 of 6
Saco Landfill Groundwater Pump amp Treat System
Line length Depth to screen midpoint Additional head required Total head required Pump size required West well flow West well line diameter Line length Depth to screen midpoint Additional head required Total head required Pump size required
KMnO4 and NaOH and caustic Mix tank residence time Mix tank volume Tank diameter Tank height Actual tank volume w freeboard Dose KMnO4 required
KMnO4 solution strength
KMnO4 addition rate Desired storage time KMnO4 storage volume reqd
KMnO4 Tank diameter
KMnO4 tank height Actual tank volume w freeboard Desired pH Alk per pH unit (as CaCO3) Alkalinity lost in oxidation Total alkalinity required NaOH solution strength NaOH addition rate Desired storage time NaOH storage volume reqd NaOH tank diameter NaOH tank height Actual tank volume w freeboard
Conceptual Design 580 feet 60 feet 44to76bgs
50^ feet 25 feet elevation difference + 10 psi excess 110 feet 11 hp 47 gpm
2 inches 580 feet 32 feet 18to46bgs 50 feet 82 feet 17hp
addition Notes 5 mm Reasonable time for stable pH control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
57 mgL Dose 094 Iblb Fe 192 Iblb Mn 2 Iblb As
50000 mgL
008 gpm 116 gpd 17 IbMnday
30 days 3500 gallons
7 feet
131 feet Includes 1 ft freeboard 3790 gallons
80 units 177 mgL 35 meq 15 meq 149 Ib as CaCO3lb Fe 121 Iblb Mn 2 Iblb As 61 meq 75 N 25 (ww) NaOH approx = 75N
006 gpm 83 gpd 30 days
2500 gallons 7 feet
97 feet Includes 1 ft freeboard 2790 gallons
Page 2 of 6
Saco Landfill Ground water Pump amp Treat System
Oxidation tank Oxidation tank residence time Oxidation tank volume Tank diameter Tank height Actual tank volume w freeboard
Lamella inclined plate separator
Surface loading rate
Required surface area
Unit size Number of units Approx height Approx length Approx width
Transfer tank and pumps Transfer tank residence time Transfer tank volume Tank diameter Tank height Actual tank volume w freeboard Pump capacity Pump flow Pump horsepower
Manganese greensand filters
Surface loading rate
Required surface area Required diameter
Unit size provided Diameter provided Number of units
Activated alumina ion exchange Desired pH for act alumina HC1 required to offset NaOH
Conceptual Design Notes
25 min Reaction time of 5 to 30 minutes suggested in AWWA 1800 gallons
6 feet 95 feet Includes 1 ft freeboard
2010 gallons
04 gpmfr 04 to 06 gpmsq ft recommended by Parkson
175ft2
240ft2 Unit sizes of 240480 740 and 1150 sq ft available 1 unit
13 feet Dimensions from Parkson 11 feet 6 feet
Notes 5 min Reasonable time for stable pump control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
70 ft head 30 psi 70 gpm
21 HP
3 gpmft2 3 to 5 gpm per sq ft recommended in AWWA
23 ft2
27ft
28ft2
30ft 2 units Plan to alternate units can also run in series or parallel
Notes 60 units 61 meq
Page 3 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
HC1 required to achieve setpoint 25 meq Total acidity required 86 meq HCI solution strength 9NHC1 addition rate 007 gpmDesired storage time - 30 days HCI storage volume reqd 2900 gallons HCI tank diameter 7 feet HCI tank height 111 feet Actual tank volume w freeboard 3190 gallons
Act alum surface loading rate 1 gpmft2
Required surface area 70ft2
Required diameter 47ft
Unit size provided 79ft2
Diameter provided 50ft EBCT required 50 min Volume to satisfy EBCT 47 cu ft Bed volumes to breakthrough 10000 volumes Desired time to breakthrough 90 days Bed vol reqd for breakthrough 121 cu ft Controlling bed volume 121 cu ft Number of units 2 units
Granular Activated Carbon Carbon vessels required 2 units Flow rate 700 gpm Min vessel diameter 48 inches Mass of carbon in vessel 1700 Ibs Mass of carbon used per day 3 Ibs Life of vessel 15 years
Clearwell and backwash settling tanks Filter backwash rate 175 gpm Backwash cycles per day 2 cycles Backwash duration 10 minutes Settling tank hold time 2 days Settling tank volume required 7000 gallons Settling tank diameter 9 feet Settling tank height 157 feet Actual tank volume w freeboard 7480 gallons
20 deg Be = 30 soln = 92 N 94 gpd
Includes 1 ft freeboard
1 to 5 gpm per sq ft recommended in AWWA
FromAWWAp 615 Regenerate once per quarter Complicated task
Plan to alternate units can also run in series or parallel
Notes Plan to run in series
Based on use rate of 003 lb1000 gal from Calgon
Notes Assume 250 of forward flow rate
Includes 1 ft freeboard
Page 4 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Clearwell volume required Cleanvell tank diameter Clearwell tank height Actual tank volume w freeboard
Sludge storagethickening tank Mass of Fe removed
Mass of Mn removed
Mass of As removed
Misc other metals removed Total metals removed Cone of As in dry sludge Hazardous waste Settled sludge concentration Sludge specific gravity Settled sludge volume Sludge holding between presses Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard
Polymer day tank Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard Polymer dose Polymer use
Sludge press Pressed sludge concentration Sludge specific gravity
Pressed sludge volume Pressed sludge mass
1750 gallons 6 feet
93 feet 1960 gallons
38 Ibday 72 Ibday
23 Ibday
37 Ibday 01 Ibday 02 Ibday 11 Ibday
120 Ibday 980 mgkg Yes
20000 mgL 101 714 galday
7 days maximum
Includes bull=11 ft freeboard
Notes asFe as Fe(OH)3
as Mn includes Mn added with KMnO4
asMnO2
as As as As(OH) assumes 10 of Fe Mn total
Hazardous waste threshhold is 100 mgkg 2
5100 gallons 8 feet
145 feet 5480 gallons
30 gallons 2 feet
23 feet 50 gallons 10 mgL 22 Ibyear
400000 mgL 140
26 galday 300 Ibday
Includes 1 ft freeboard
Notes Polymer diluted in day tank dosed in-line w static mixer
Includes 1 ft freeboard
3 ftVday 45 tonmonth
Page 5 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Required press volume Length Width Height Initial press fill time AOD pump flow rate Compressed air flow rate HP required
Discharge piping Flow rate Desired flow velocity in piping East well line diameter Line length
4ft3
62ft 3 f t 41 ft
5 min 6 gpm
12 scfm 3hp
70 gpm 4 ftsec 3 inches
1070 feet
Assumes more than one press cycle per day as reqd Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI recommendation at peak 100 psi discharge (incorporates 2x correction for high viscosity) Assumes 4 cfmhp
Notes
Page 6 of 6
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TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
$142000
$851000
$43000 $43000 $85000 $85000
$256000
$1107000
$5000 $40000 $27000
$72000 $7000
$14000
$93000
$509000
$125000
$1^51000
$60000
$129000
$3296000
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FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
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$125000
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Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
1 EQUIPMENT COSTS Item Quantity
(a) Extraction System Extraction Wells with Development (Level D) 2 Pumps with VFDs and Controls 2 Flow meters (2 magmeters) 2 Piezometers (Level D) 11 Piping (HOPE)
2 inch 1160
Subtotal Contractors Profit ( 10 of equipment cost) Extraction System Subtotal
(b) Treatment System
Flow meter (2 magmeter) Mix tank (400 gal) Mixer (1 HP) KMnO4 storage tank (3800 gal w sec cont) Mixer (3 HP) Chemical feed pump (120 gpd) NaOH storage tank (1 800 gal w sec cont) Chemical feed pump (70 gpd) Spare portable mixer (1 5 HP) Oxidation tank (2000 gal) Mixer (2 HP) Lamella separator (240 sq ft) 1 Transfer tank (400 gal) 1 Transfer and backwash pumps (2 HP) 3 Greensand Filters (3 ft diam) 2 HCI storage tank (2500 gal w sec cont) 1 Chemical feed pump (80 gpd) 1 Activated alumina colums (5 ft diam 120 cu ft) 2 GAC vessels (4 daim 1800 Ib GAC) 2 Backwash holding tank (7500 gal) 1 Clearwell (2000 gal) 1 Sludge holding tank (5500 gal) 1 Air Diaphragm Pumps - Press feed and sludge trans 2
Unit Unit Cost
ea $15000 ea $3300 ea $2300 ea $3000
LF $8
ea $2300 ea $770 ea $1500 ea $10120 ea $2300 ea $850 ea $6160 ea $790 ea $1800 ea $2800 ea $2200 ea $45000 ea $770 ea $3000 ea $8000 ea $9900 ea $790 ea $26800 ea $10296 ea $7600 ea $2800 ea $6300 ea $1000
Total Cost
$30000 $6600 $4600
$33000
$9280
$83480 $8350
$91830
$2300 $770
$1500 $10120
$2300 $850
$6160 $790
$1800 $2800 $2200
$45000 $770
$9000 $16000 $9900
$790 $53600 $20592
$7600 $2800 $6300 $2000
Pagel of 2
Saco Municipal Landfill Feasibility Study Saco Maine
Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
Air Compressor (3 HP) Polymer mixing tank (50 gal) Mixer (05 HP) Chemical feed pump- polymer (120 gpd) Static mixers - in-line 3 Sludge press (4 cu ft) Fork lift (for sludge bin and chemical handling) Building Costs (65L x 45W x 1 6H)
1111211
2925
ea ea ea ea ea ea ea
SF
$1700 $330 $1300 $850 $600 $24000 $23000 $50
$1700 $330 $1300 $850 $1200 $24000 $23000 $146250
Subtotal Contractors Profit ( 10 of equipment cost) Treatment System Subtotal
$402272 $40230
$442502
(c) Surface Water Discharge System 3 HOPE Pipe Infiltration Basin (150 x 150 x 5) Fence Swing Gate
10704167600
1
LF CY
LF Ea
$9 $10 $15 $400
$9630 $41667 $9000 $400
Subtotal Sales Tax ( 6 of equipment cost) Contractors Profit ( 10 of equipment cost) Discharge System Subtotal
$9630 $580 $960
$11170
EQUIPMENT SUBTOTAL $545502
2 INSTALLATION COSTS Instrumentation (15 of Equipment Subtotal) Electrical (15 of Equipment Subtotal) Process Piping (30 of Equipment Subtotal) HVAC System (7 of Equipment Subtotal) Labor (30 of Equipment Subtotal) Field Indirect (90 of Labor Cost)
$81825 $81825
$163651 $38185
$163651 $147286
INSTALLATION SUBTOTAL $676422
TOTAL CAPITAL COSTS Note Capital Costs are rounded to the nearest thousand
$1222000
Page 2 of 2
COST CATEGORIES
Labor (1 full-time operator) Electricity Other utilities (oil phone) Chemicals Maintenance 5 of capital Sludge disposal Monitoring OfficeSuppliesMiscdisposable items
TOTAL COST
ANNUAL COSTS
$73000 $9000 $5000
$47000 $27300 $13700 $17080 $5000
$197000
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM)
POWER ESTIMATE
2 Extraction pumps 2 Continuous mixers 4 Chemical Feed Pumps 1 Transfer Pump 1 Air Compressor HVACLights Miscellaneous
j bull bull H P shy
280300100200300300200
8 r HOURS ^ K W DAY
209 24 224 24 075 24 149 24 224 6 224 18 149 24
KWH DAY shy
50 54 18 36 13 40 36
ELECTRIC POWER SUMMARY HP KW
KWH DAY
KWH YEAR
TOTAL 1680 1253 247 90182
UNIT POWER COST SO 100 |
TOTAL ANNUAL POWER COST $9000 |
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Chemical Costs
QUANTITY CHEMICAL YEAR
Sodium Hydroxide (25) 30130 Hydrochloric Acid (30) 34488 Potassium Permanganate pure solid 6117 Polymer 22 GAC 1104
Subtotal Freight (10)
SUBTOTAL CHEMICALS
Sludge Costs
ITEM Wet Tonsyr 55 Unit Hauling and Tipping cost ($WT) $250 Sludge Disposal Cost (Syr) 513695 Assuming Sludge is disposed of as hazardous waste
UNITS
Gal Gal Lbs Lbs Lbs
UNIT COST
$040 $060 $160 $250 $300
ANNUAL COST
$12100 $20693 $9800
$100 $3300
$42693 $4269
$46962
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Monitoring Costs
1 Extraction Wells (Monitored Quarterly) No of Samples = 2
1 1
MSMSD =
4
Trip Blanks =Duplicates =
Eq Blanks = 0 Total =
Cost for VOC Analysis =Cost for Metals Analysis=
Monitoring Frequency =
Cost Subtotal =
0
$147 (for VOC Method 8260) $ 181 (for TAL Metals Method SW-846)
4 times per year
$5200 per year
2
QAQC =Total = 3
0
Cost for VOC Analysis =Cost for Metals Analysis =
Monitoring Frequency =
Cost Subtotal =
Total Cost =
Treatment System Sampling (Monthly) No of Samples= 3
$150 (for VOC Method 8260) $ 180 (for TAL Metals Method S W-846)
12 times per year
511880 per year
$17080 per year
Influent Criteria Flow r^70gpm Mn --li7 mgL As Fe Jgt 45 mgL pH ^-61 units
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Source 0101 MOD Modflow modelling by JRH w 15 safety factor
Average of wells 95-4SAB and 97-14S-1 and 2 shyAverage of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB
Alkalinity 3pmgLasCaCO3 Average of wells 95-4SAB and 97-14S-1 and 2 Benzene ^2uc Average of wells 95-4SAB
Effluent Criteria Mn 084 mgL As 005 mgL Benzene 5 ugL
Assumptions All metals in reduced state Linear titration curve between pH 45 and 105
Unit Processes Wells pumps and piping KMnO4 and NaOH rapid mix addition Oxidation tank w mixer Lamella inclined plate separator Transfer tank and pumps Manganese greensand filters HCI addition Activated alumina ion exchange Granular activated carbon vessels Backwash tank Sludge thickening tank Polymer mixing tank Sludge press Discharge piping
Wells pumps and piping Desired flow velocity in piping East well flow East well line diameter
Function Deliver groundwater to treatment Oxidize Fe Mn As pH adjust to 80 Oxidize Fe Mn As pH adjust to 80 Remove majority of Fe some Mn and As Shift from gravity to pressure operation Remove Fe Mn to less than 05 ppm Adjust pH to 60 Remove As to less than 30 ppb Remove VOCs Collect and settle backwash water to minimize volume Mix sludge with polymer for enhanced dewatering Prepare polymer for mixing with sludge Press sludge for disposal Convey clean water to discharge point
Notes 4 ftsec
23 gpm 2 inches
Page 1 of 6
Saco Landfill Groundwater Pump amp Treat System
Line length Depth to screen midpoint Additional head required Total head required Pump size required West well flow West well line diameter Line length Depth to screen midpoint Additional head required Total head required Pump size required
KMnO4 and NaOH and caustic Mix tank residence time Mix tank volume Tank diameter Tank height Actual tank volume w freeboard Dose KMnO4 required
KMnO4 solution strength
KMnO4 addition rate Desired storage time KMnO4 storage volume reqd
KMnO4 Tank diameter
KMnO4 tank height Actual tank volume w freeboard Desired pH Alk per pH unit (as CaCO3) Alkalinity lost in oxidation Total alkalinity required NaOH solution strength NaOH addition rate Desired storage time NaOH storage volume reqd NaOH tank diameter NaOH tank height Actual tank volume w freeboard
Conceptual Design 580 feet 60 feet 44to76bgs
50^ feet 25 feet elevation difference + 10 psi excess 110 feet 11 hp 47 gpm
2 inches 580 feet 32 feet 18to46bgs 50 feet 82 feet 17hp
addition Notes 5 mm Reasonable time for stable pH control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
57 mgL Dose 094 Iblb Fe 192 Iblb Mn 2 Iblb As
50000 mgL
008 gpm 116 gpd 17 IbMnday
30 days 3500 gallons
7 feet
131 feet Includes 1 ft freeboard 3790 gallons
80 units 177 mgL 35 meq 15 meq 149 Ib as CaCO3lb Fe 121 Iblb Mn 2 Iblb As 61 meq 75 N 25 (ww) NaOH approx = 75N
006 gpm 83 gpd 30 days
2500 gallons 7 feet
97 feet Includes 1 ft freeboard 2790 gallons
Page 2 of 6
Saco Landfill Ground water Pump amp Treat System
Oxidation tank Oxidation tank residence time Oxidation tank volume Tank diameter Tank height Actual tank volume w freeboard
Lamella inclined plate separator
Surface loading rate
Required surface area
Unit size Number of units Approx height Approx length Approx width
Transfer tank and pumps Transfer tank residence time Transfer tank volume Tank diameter Tank height Actual tank volume w freeboard Pump capacity Pump flow Pump horsepower
Manganese greensand filters
Surface loading rate
Required surface area Required diameter
Unit size provided Diameter provided Number of units
Activated alumina ion exchange Desired pH for act alumina HC1 required to offset NaOH
Conceptual Design Notes
25 min Reaction time of 5 to 30 minutes suggested in AWWA 1800 gallons
6 feet 95 feet Includes 1 ft freeboard
2010 gallons
04 gpmfr 04 to 06 gpmsq ft recommended by Parkson
175ft2
240ft2 Unit sizes of 240480 740 and 1150 sq ft available 1 unit
13 feet Dimensions from Parkson 11 feet 6 feet
Notes 5 min Reasonable time for stable pump control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
70 ft head 30 psi 70 gpm
21 HP
3 gpmft2 3 to 5 gpm per sq ft recommended in AWWA
23 ft2
27ft
28ft2
30ft 2 units Plan to alternate units can also run in series or parallel
Notes 60 units 61 meq
Page 3 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
HC1 required to achieve setpoint 25 meq Total acidity required 86 meq HCI solution strength 9NHC1 addition rate 007 gpmDesired storage time - 30 days HCI storage volume reqd 2900 gallons HCI tank diameter 7 feet HCI tank height 111 feet Actual tank volume w freeboard 3190 gallons
Act alum surface loading rate 1 gpmft2
Required surface area 70ft2
Required diameter 47ft
Unit size provided 79ft2
Diameter provided 50ft EBCT required 50 min Volume to satisfy EBCT 47 cu ft Bed volumes to breakthrough 10000 volumes Desired time to breakthrough 90 days Bed vol reqd for breakthrough 121 cu ft Controlling bed volume 121 cu ft Number of units 2 units
Granular Activated Carbon Carbon vessels required 2 units Flow rate 700 gpm Min vessel diameter 48 inches Mass of carbon in vessel 1700 Ibs Mass of carbon used per day 3 Ibs Life of vessel 15 years
Clearwell and backwash settling tanks Filter backwash rate 175 gpm Backwash cycles per day 2 cycles Backwash duration 10 minutes Settling tank hold time 2 days Settling tank volume required 7000 gallons Settling tank diameter 9 feet Settling tank height 157 feet Actual tank volume w freeboard 7480 gallons
20 deg Be = 30 soln = 92 N 94 gpd
Includes 1 ft freeboard
1 to 5 gpm per sq ft recommended in AWWA
FromAWWAp 615 Regenerate once per quarter Complicated task
Plan to alternate units can also run in series or parallel
Notes Plan to run in series
Based on use rate of 003 lb1000 gal from Calgon
Notes Assume 250 of forward flow rate
Includes 1 ft freeboard
Page 4 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Clearwell volume required Cleanvell tank diameter Clearwell tank height Actual tank volume w freeboard
Sludge storagethickening tank Mass of Fe removed
Mass of Mn removed
Mass of As removed
Misc other metals removed Total metals removed Cone of As in dry sludge Hazardous waste Settled sludge concentration Sludge specific gravity Settled sludge volume Sludge holding between presses Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard
Polymer day tank Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard Polymer dose Polymer use
Sludge press Pressed sludge concentration Sludge specific gravity
Pressed sludge volume Pressed sludge mass
1750 gallons 6 feet
93 feet 1960 gallons
38 Ibday 72 Ibday
23 Ibday
37 Ibday 01 Ibday 02 Ibday 11 Ibday
120 Ibday 980 mgkg Yes
20000 mgL 101 714 galday
7 days maximum
Includes bull=11 ft freeboard
Notes asFe as Fe(OH)3
as Mn includes Mn added with KMnO4
asMnO2
as As as As(OH) assumes 10 of Fe Mn total
Hazardous waste threshhold is 100 mgkg 2
5100 gallons 8 feet
145 feet 5480 gallons
30 gallons 2 feet
23 feet 50 gallons 10 mgL 22 Ibyear
400000 mgL 140
26 galday 300 Ibday
Includes 1 ft freeboard
Notes Polymer diluted in day tank dosed in-line w static mixer
Includes 1 ft freeboard
3 ftVday 45 tonmonth
Page 5 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Required press volume Length Width Height Initial press fill time AOD pump flow rate Compressed air flow rate HP required
Discharge piping Flow rate Desired flow velocity in piping East well line diameter Line length
4ft3
62ft 3 f t 41 ft
5 min 6 gpm
12 scfm 3hp
70 gpm 4 ftsec 3 inches
1070 feet
Assumes more than one press cycle per day as reqd Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI recommendation at peak 100 psi discharge (incorporates 2x correction for high viscosity) Assumes 4 cfmhp
Notes
Page 6 of 6
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TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
$142000
$851000
$43000 $43000 $85000 $85000
$256000
$1107000
$5000 $40000 $27000
$72000 $7000
$14000
$93000
$509000
$125000
$1^51000
$60000
$129000
$3296000
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FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
$129000
$6919000
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Saco Municipal Landfill Feasibility Study Saco Maine
Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
1 EQUIPMENT COSTS Item Quantity
(a) Extraction System Extraction Wells with Development (Level D) 2 Pumps with VFDs and Controls 2 Flow meters (2 magmeters) 2 Piezometers (Level D) 11 Piping (HOPE)
2 inch 1160
Subtotal Contractors Profit ( 10 of equipment cost) Extraction System Subtotal
(b) Treatment System
Flow meter (2 magmeter) Mix tank (400 gal) Mixer (1 HP) KMnO4 storage tank (3800 gal w sec cont) Mixer (3 HP) Chemical feed pump (120 gpd) NaOH storage tank (1 800 gal w sec cont) Chemical feed pump (70 gpd) Spare portable mixer (1 5 HP) Oxidation tank (2000 gal) Mixer (2 HP) Lamella separator (240 sq ft) 1 Transfer tank (400 gal) 1 Transfer and backwash pumps (2 HP) 3 Greensand Filters (3 ft diam) 2 HCI storage tank (2500 gal w sec cont) 1 Chemical feed pump (80 gpd) 1 Activated alumina colums (5 ft diam 120 cu ft) 2 GAC vessels (4 daim 1800 Ib GAC) 2 Backwash holding tank (7500 gal) 1 Clearwell (2000 gal) 1 Sludge holding tank (5500 gal) 1 Air Diaphragm Pumps - Press feed and sludge trans 2
Unit Unit Cost
ea $15000 ea $3300 ea $2300 ea $3000
LF $8
ea $2300 ea $770 ea $1500 ea $10120 ea $2300 ea $850 ea $6160 ea $790 ea $1800 ea $2800 ea $2200 ea $45000 ea $770 ea $3000 ea $8000 ea $9900 ea $790 ea $26800 ea $10296 ea $7600 ea $2800 ea $6300 ea $1000
Total Cost
$30000 $6600 $4600
$33000
$9280
$83480 $8350
$91830
$2300 $770
$1500 $10120
$2300 $850
$6160 $790
$1800 $2800 $2200
$45000 $770
$9000 $16000 $9900
$790 $53600 $20592
$7600 $2800 $6300 $2000
Pagel of 2
Saco Municipal Landfill Feasibility Study Saco Maine
Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
Air Compressor (3 HP) Polymer mixing tank (50 gal) Mixer (05 HP) Chemical feed pump- polymer (120 gpd) Static mixers - in-line 3 Sludge press (4 cu ft) Fork lift (for sludge bin and chemical handling) Building Costs (65L x 45W x 1 6H)
1111211
2925
ea ea ea ea ea ea ea
SF
$1700 $330 $1300 $850 $600 $24000 $23000 $50
$1700 $330 $1300 $850 $1200 $24000 $23000 $146250
Subtotal Contractors Profit ( 10 of equipment cost) Treatment System Subtotal
$402272 $40230
$442502
(c) Surface Water Discharge System 3 HOPE Pipe Infiltration Basin (150 x 150 x 5) Fence Swing Gate
10704167600
1
LF CY
LF Ea
$9 $10 $15 $400
$9630 $41667 $9000 $400
Subtotal Sales Tax ( 6 of equipment cost) Contractors Profit ( 10 of equipment cost) Discharge System Subtotal
$9630 $580 $960
$11170
EQUIPMENT SUBTOTAL $545502
2 INSTALLATION COSTS Instrumentation (15 of Equipment Subtotal) Electrical (15 of Equipment Subtotal) Process Piping (30 of Equipment Subtotal) HVAC System (7 of Equipment Subtotal) Labor (30 of Equipment Subtotal) Field Indirect (90 of Labor Cost)
$81825 $81825
$163651 $38185
$163651 $147286
INSTALLATION SUBTOTAL $676422
TOTAL CAPITAL COSTS Note Capital Costs are rounded to the nearest thousand
$1222000
Page 2 of 2
COST CATEGORIES
Labor (1 full-time operator) Electricity Other utilities (oil phone) Chemicals Maintenance 5 of capital Sludge disposal Monitoring OfficeSuppliesMiscdisposable items
TOTAL COST
ANNUAL COSTS
$73000 $9000 $5000
$47000 $27300 $13700 $17080 $5000
$197000
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM)
POWER ESTIMATE
2 Extraction pumps 2 Continuous mixers 4 Chemical Feed Pumps 1 Transfer Pump 1 Air Compressor HVACLights Miscellaneous
j bull bull H P shy
280300100200300300200
8 r HOURS ^ K W DAY
209 24 224 24 075 24 149 24 224 6 224 18 149 24
KWH DAY shy
50 54 18 36 13 40 36
ELECTRIC POWER SUMMARY HP KW
KWH DAY
KWH YEAR
TOTAL 1680 1253 247 90182
UNIT POWER COST SO 100 |
TOTAL ANNUAL POWER COST $9000 |
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Chemical Costs
QUANTITY CHEMICAL YEAR
Sodium Hydroxide (25) 30130 Hydrochloric Acid (30) 34488 Potassium Permanganate pure solid 6117 Polymer 22 GAC 1104
Subtotal Freight (10)
SUBTOTAL CHEMICALS
Sludge Costs
ITEM Wet Tonsyr 55 Unit Hauling and Tipping cost ($WT) $250 Sludge Disposal Cost (Syr) 513695 Assuming Sludge is disposed of as hazardous waste
UNITS
Gal Gal Lbs Lbs Lbs
UNIT COST
$040 $060 $160 $250 $300
ANNUAL COST
$12100 $20693 $9800
$100 $3300
$42693 $4269
$46962
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Monitoring Costs
1 Extraction Wells (Monitored Quarterly) No of Samples = 2
1 1
MSMSD =
4
Trip Blanks =Duplicates =
Eq Blanks = 0 Total =
Cost for VOC Analysis =Cost for Metals Analysis=
Monitoring Frequency =
Cost Subtotal =
0
$147 (for VOC Method 8260) $ 181 (for TAL Metals Method SW-846)
4 times per year
$5200 per year
2
QAQC =Total = 3
0
Cost for VOC Analysis =Cost for Metals Analysis =
Monitoring Frequency =
Cost Subtotal =
Total Cost =
Treatment System Sampling (Monthly) No of Samples= 3
$150 (for VOC Method 8260) $ 180 (for TAL Metals Method S W-846)
12 times per year
511880 per year
$17080 per year
Influent Criteria Flow r^70gpm Mn --li7 mgL As Fe Jgt 45 mgL pH ^-61 units
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Source 0101 MOD Modflow modelling by JRH w 15 safety factor
Average of wells 95-4SAB and 97-14S-1 and 2 shyAverage of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB
Alkalinity 3pmgLasCaCO3 Average of wells 95-4SAB and 97-14S-1 and 2 Benzene ^2uc Average of wells 95-4SAB
Effluent Criteria Mn 084 mgL As 005 mgL Benzene 5 ugL
Assumptions All metals in reduced state Linear titration curve between pH 45 and 105
Unit Processes Wells pumps and piping KMnO4 and NaOH rapid mix addition Oxidation tank w mixer Lamella inclined plate separator Transfer tank and pumps Manganese greensand filters HCI addition Activated alumina ion exchange Granular activated carbon vessels Backwash tank Sludge thickening tank Polymer mixing tank Sludge press Discharge piping
Wells pumps and piping Desired flow velocity in piping East well flow East well line diameter
Function Deliver groundwater to treatment Oxidize Fe Mn As pH adjust to 80 Oxidize Fe Mn As pH adjust to 80 Remove majority of Fe some Mn and As Shift from gravity to pressure operation Remove Fe Mn to less than 05 ppm Adjust pH to 60 Remove As to less than 30 ppb Remove VOCs Collect and settle backwash water to minimize volume Mix sludge with polymer for enhanced dewatering Prepare polymer for mixing with sludge Press sludge for disposal Convey clean water to discharge point
Notes 4 ftsec
23 gpm 2 inches
Page 1 of 6
Saco Landfill Groundwater Pump amp Treat System
Line length Depth to screen midpoint Additional head required Total head required Pump size required West well flow West well line diameter Line length Depth to screen midpoint Additional head required Total head required Pump size required
KMnO4 and NaOH and caustic Mix tank residence time Mix tank volume Tank diameter Tank height Actual tank volume w freeboard Dose KMnO4 required
KMnO4 solution strength
KMnO4 addition rate Desired storage time KMnO4 storage volume reqd
KMnO4 Tank diameter
KMnO4 tank height Actual tank volume w freeboard Desired pH Alk per pH unit (as CaCO3) Alkalinity lost in oxidation Total alkalinity required NaOH solution strength NaOH addition rate Desired storage time NaOH storage volume reqd NaOH tank diameter NaOH tank height Actual tank volume w freeboard
Conceptual Design 580 feet 60 feet 44to76bgs
50^ feet 25 feet elevation difference + 10 psi excess 110 feet 11 hp 47 gpm
2 inches 580 feet 32 feet 18to46bgs 50 feet 82 feet 17hp
addition Notes 5 mm Reasonable time for stable pH control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
57 mgL Dose 094 Iblb Fe 192 Iblb Mn 2 Iblb As
50000 mgL
008 gpm 116 gpd 17 IbMnday
30 days 3500 gallons
7 feet
131 feet Includes 1 ft freeboard 3790 gallons
80 units 177 mgL 35 meq 15 meq 149 Ib as CaCO3lb Fe 121 Iblb Mn 2 Iblb As 61 meq 75 N 25 (ww) NaOH approx = 75N
006 gpm 83 gpd 30 days
2500 gallons 7 feet
97 feet Includes 1 ft freeboard 2790 gallons
Page 2 of 6
Saco Landfill Ground water Pump amp Treat System
Oxidation tank Oxidation tank residence time Oxidation tank volume Tank diameter Tank height Actual tank volume w freeboard
Lamella inclined plate separator
Surface loading rate
Required surface area
Unit size Number of units Approx height Approx length Approx width
Transfer tank and pumps Transfer tank residence time Transfer tank volume Tank diameter Tank height Actual tank volume w freeboard Pump capacity Pump flow Pump horsepower
Manganese greensand filters
Surface loading rate
Required surface area Required diameter
Unit size provided Diameter provided Number of units
Activated alumina ion exchange Desired pH for act alumina HC1 required to offset NaOH
Conceptual Design Notes
25 min Reaction time of 5 to 30 minutes suggested in AWWA 1800 gallons
6 feet 95 feet Includes 1 ft freeboard
2010 gallons
04 gpmfr 04 to 06 gpmsq ft recommended by Parkson
175ft2
240ft2 Unit sizes of 240480 740 and 1150 sq ft available 1 unit
13 feet Dimensions from Parkson 11 feet 6 feet
Notes 5 min Reasonable time for stable pump control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
70 ft head 30 psi 70 gpm
21 HP
3 gpmft2 3 to 5 gpm per sq ft recommended in AWWA
23 ft2
27ft
28ft2
30ft 2 units Plan to alternate units can also run in series or parallel
Notes 60 units 61 meq
Page 3 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
HC1 required to achieve setpoint 25 meq Total acidity required 86 meq HCI solution strength 9NHC1 addition rate 007 gpmDesired storage time - 30 days HCI storage volume reqd 2900 gallons HCI tank diameter 7 feet HCI tank height 111 feet Actual tank volume w freeboard 3190 gallons
Act alum surface loading rate 1 gpmft2
Required surface area 70ft2
Required diameter 47ft
Unit size provided 79ft2
Diameter provided 50ft EBCT required 50 min Volume to satisfy EBCT 47 cu ft Bed volumes to breakthrough 10000 volumes Desired time to breakthrough 90 days Bed vol reqd for breakthrough 121 cu ft Controlling bed volume 121 cu ft Number of units 2 units
Granular Activated Carbon Carbon vessels required 2 units Flow rate 700 gpm Min vessel diameter 48 inches Mass of carbon in vessel 1700 Ibs Mass of carbon used per day 3 Ibs Life of vessel 15 years
Clearwell and backwash settling tanks Filter backwash rate 175 gpm Backwash cycles per day 2 cycles Backwash duration 10 minutes Settling tank hold time 2 days Settling tank volume required 7000 gallons Settling tank diameter 9 feet Settling tank height 157 feet Actual tank volume w freeboard 7480 gallons
20 deg Be = 30 soln = 92 N 94 gpd
Includes 1 ft freeboard
1 to 5 gpm per sq ft recommended in AWWA
FromAWWAp 615 Regenerate once per quarter Complicated task
Plan to alternate units can also run in series or parallel
Notes Plan to run in series
Based on use rate of 003 lb1000 gal from Calgon
Notes Assume 250 of forward flow rate
Includes 1 ft freeboard
Page 4 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Clearwell volume required Cleanvell tank diameter Clearwell tank height Actual tank volume w freeboard
Sludge storagethickening tank Mass of Fe removed
Mass of Mn removed
Mass of As removed
Misc other metals removed Total metals removed Cone of As in dry sludge Hazardous waste Settled sludge concentration Sludge specific gravity Settled sludge volume Sludge holding between presses Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard
Polymer day tank Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard Polymer dose Polymer use
Sludge press Pressed sludge concentration Sludge specific gravity
Pressed sludge volume Pressed sludge mass
1750 gallons 6 feet
93 feet 1960 gallons
38 Ibday 72 Ibday
23 Ibday
37 Ibday 01 Ibday 02 Ibday 11 Ibday
120 Ibday 980 mgkg Yes
20000 mgL 101 714 galday
7 days maximum
Includes bull=11 ft freeboard
Notes asFe as Fe(OH)3
as Mn includes Mn added with KMnO4
asMnO2
as As as As(OH) assumes 10 of Fe Mn total
Hazardous waste threshhold is 100 mgkg 2
5100 gallons 8 feet
145 feet 5480 gallons
30 gallons 2 feet
23 feet 50 gallons 10 mgL 22 Ibyear
400000 mgL 140
26 galday 300 Ibday
Includes 1 ft freeboard
Notes Polymer diluted in day tank dosed in-line w static mixer
Includes 1 ft freeboard
3 ftVday 45 tonmonth
Page 5 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Required press volume Length Width Height Initial press fill time AOD pump flow rate Compressed air flow rate HP required
Discharge piping Flow rate Desired flow velocity in piping East well line diameter Line length
4ft3
62ft 3 f t 41 ft
5 min 6 gpm
12 scfm 3hp
70 gpm 4 ftsec 3 inches
1070 feet
Assumes more than one press cycle per day as reqd Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI recommendation at peak 100 psi discharge (incorporates 2x correction for high viscosity) Assumes 4 cfmhp
Notes
Page 6 of 6
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TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
$142000
$851000
$43000 $43000 $85000 $85000
$256000
$1107000
$5000 $40000 $27000
$72000 $7000
$14000
$93000
$509000
$125000
$1^51000
$60000
$129000
$3296000
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FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
$129000
$6919000
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Saco Municipal Landfill Feasibility Study Saco Maine
Alternative SML-5 (60-70 gpm Pump and Treat) Capital Costs
Air Compressor (3 HP) Polymer mixing tank (50 gal) Mixer (05 HP) Chemical feed pump- polymer (120 gpd) Static mixers - in-line 3 Sludge press (4 cu ft) Fork lift (for sludge bin and chemical handling) Building Costs (65L x 45W x 1 6H)
1111211
2925
ea ea ea ea ea ea ea
SF
$1700 $330 $1300 $850 $600 $24000 $23000 $50
$1700 $330 $1300 $850 $1200 $24000 $23000 $146250
Subtotal Contractors Profit ( 10 of equipment cost) Treatment System Subtotal
$402272 $40230
$442502
(c) Surface Water Discharge System 3 HOPE Pipe Infiltration Basin (150 x 150 x 5) Fence Swing Gate
10704167600
1
LF CY
LF Ea
$9 $10 $15 $400
$9630 $41667 $9000 $400
Subtotal Sales Tax ( 6 of equipment cost) Contractors Profit ( 10 of equipment cost) Discharge System Subtotal
$9630 $580 $960
$11170
EQUIPMENT SUBTOTAL $545502
2 INSTALLATION COSTS Instrumentation (15 of Equipment Subtotal) Electrical (15 of Equipment Subtotal) Process Piping (30 of Equipment Subtotal) HVAC System (7 of Equipment Subtotal) Labor (30 of Equipment Subtotal) Field Indirect (90 of Labor Cost)
$81825 $81825
$163651 $38185
$163651 $147286
INSTALLATION SUBTOTAL $676422
TOTAL CAPITAL COSTS Note Capital Costs are rounded to the nearest thousand
$1222000
Page 2 of 2
COST CATEGORIES
Labor (1 full-time operator) Electricity Other utilities (oil phone) Chemicals Maintenance 5 of capital Sludge disposal Monitoring OfficeSuppliesMiscdisposable items
TOTAL COST
ANNUAL COSTS
$73000 $9000 $5000
$47000 $27300 $13700 $17080 $5000
$197000
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM)
POWER ESTIMATE
2 Extraction pumps 2 Continuous mixers 4 Chemical Feed Pumps 1 Transfer Pump 1 Air Compressor HVACLights Miscellaneous
j bull bull H P shy
280300100200300300200
8 r HOURS ^ K W DAY
209 24 224 24 075 24 149 24 224 6 224 18 149 24
KWH DAY shy
50 54 18 36 13 40 36
ELECTRIC POWER SUMMARY HP KW
KWH DAY
KWH YEAR
TOTAL 1680 1253 247 90182
UNIT POWER COST SO 100 |
TOTAL ANNUAL POWER COST $9000 |
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Chemical Costs
QUANTITY CHEMICAL YEAR
Sodium Hydroxide (25) 30130 Hydrochloric Acid (30) 34488 Potassium Permanganate pure solid 6117 Polymer 22 GAC 1104
Subtotal Freight (10)
SUBTOTAL CHEMICALS
Sludge Costs
ITEM Wet Tonsyr 55 Unit Hauling and Tipping cost ($WT) $250 Sludge Disposal Cost (Syr) 513695 Assuming Sludge is disposed of as hazardous waste
UNITS
Gal Gal Lbs Lbs Lbs
UNIT COST
$040 $060 $160 $250 $300
ANNUAL COST
$12100 $20693 $9800
$100 $3300
$42693 $4269
$46962
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Monitoring Costs
1 Extraction Wells (Monitored Quarterly) No of Samples = 2
1 1
MSMSD =
4
Trip Blanks =Duplicates =
Eq Blanks = 0 Total =
Cost for VOC Analysis =Cost for Metals Analysis=
Monitoring Frequency =
Cost Subtotal =
0
$147 (for VOC Method 8260) $ 181 (for TAL Metals Method SW-846)
4 times per year
$5200 per year
2
QAQC =Total = 3
0
Cost for VOC Analysis =Cost for Metals Analysis =
Monitoring Frequency =
Cost Subtotal =
Total Cost =
Treatment System Sampling (Monthly) No of Samples= 3
$150 (for VOC Method 8260) $ 180 (for TAL Metals Method S W-846)
12 times per year
511880 per year
$17080 per year
Influent Criteria Flow r^70gpm Mn --li7 mgL As Fe Jgt 45 mgL pH ^-61 units
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Source 0101 MOD Modflow modelling by JRH w 15 safety factor
Average of wells 95-4SAB and 97-14S-1 and 2 shyAverage of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB
Alkalinity 3pmgLasCaCO3 Average of wells 95-4SAB and 97-14S-1 and 2 Benzene ^2uc Average of wells 95-4SAB
Effluent Criteria Mn 084 mgL As 005 mgL Benzene 5 ugL
Assumptions All metals in reduced state Linear titration curve between pH 45 and 105
Unit Processes Wells pumps and piping KMnO4 and NaOH rapid mix addition Oxidation tank w mixer Lamella inclined plate separator Transfer tank and pumps Manganese greensand filters HCI addition Activated alumina ion exchange Granular activated carbon vessels Backwash tank Sludge thickening tank Polymer mixing tank Sludge press Discharge piping
Wells pumps and piping Desired flow velocity in piping East well flow East well line diameter
Function Deliver groundwater to treatment Oxidize Fe Mn As pH adjust to 80 Oxidize Fe Mn As pH adjust to 80 Remove majority of Fe some Mn and As Shift from gravity to pressure operation Remove Fe Mn to less than 05 ppm Adjust pH to 60 Remove As to less than 30 ppb Remove VOCs Collect and settle backwash water to minimize volume Mix sludge with polymer for enhanced dewatering Prepare polymer for mixing with sludge Press sludge for disposal Convey clean water to discharge point
Notes 4 ftsec
23 gpm 2 inches
Page 1 of 6
Saco Landfill Groundwater Pump amp Treat System
Line length Depth to screen midpoint Additional head required Total head required Pump size required West well flow West well line diameter Line length Depth to screen midpoint Additional head required Total head required Pump size required
KMnO4 and NaOH and caustic Mix tank residence time Mix tank volume Tank diameter Tank height Actual tank volume w freeboard Dose KMnO4 required
KMnO4 solution strength
KMnO4 addition rate Desired storage time KMnO4 storage volume reqd
KMnO4 Tank diameter
KMnO4 tank height Actual tank volume w freeboard Desired pH Alk per pH unit (as CaCO3) Alkalinity lost in oxidation Total alkalinity required NaOH solution strength NaOH addition rate Desired storage time NaOH storage volume reqd NaOH tank diameter NaOH tank height Actual tank volume w freeboard
Conceptual Design 580 feet 60 feet 44to76bgs
50^ feet 25 feet elevation difference + 10 psi excess 110 feet 11 hp 47 gpm
2 inches 580 feet 32 feet 18to46bgs 50 feet 82 feet 17hp
addition Notes 5 mm Reasonable time for stable pH control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
57 mgL Dose 094 Iblb Fe 192 Iblb Mn 2 Iblb As
50000 mgL
008 gpm 116 gpd 17 IbMnday
30 days 3500 gallons
7 feet
131 feet Includes 1 ft freeboard 3790 gallons
80 units 177 mgL 35 meq 15 meq 149 Ib as CaCO3lb Fe 121 Iblb Mn 2 Iblb As 61 meq 75 N 25 (ww) NaOH approx = 75N
006 gpm 83 gpd 30 days
2500 gallons 7 feet
97 feet Includes 1 ft freeboard 2790 gallons
Page 2 of 6
Saco Landfill Ground water Pump amp Treat System
Oxidation tank Oxidation tank residence time Oxidation tank volume Tank diameter Tank height Actual tank volume w freeboard
Lamella inclined plate separator
Surface loading rate
Required surface area
Unit size Number of units Approx height Approx length Approx width
Transfer tank and pumps Transfer tank residence time Transfer tank volume Tank diameter Tank height Actual tank volume w freeboard Pump capacity Pump flow Pump horsepower
Manganese greensand filters
Surface loading rate
Required surface area Required diameter
Unit size provided Diameter provided Number of units
Activated alumina ion exchange Desired pH for act alumina HC1 required to offset NaOH
Conceptual Design Notes
25 min Reaction time of 5 to 30 minutes suggested in AWWA 1800 gallons
6 feet 95 feet Includes 1 ft freeboard
2010 gallons
04 gpmfr 04 to 06 gpmsq ft recommended by Parkson
175ft2
240ft2 Unit sizes of 240480 740 and 1150 sq ft available 1 unit
13 feet Dimensions from Parkson 11 feet 6 feet
Notes 5 min Reasonable time for stable pump control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
70 ft head 30 psi 70 gpm
21 HP
3 gpmft2 3 to 5 gpm per sq ft recommended in AWWA
23 ft2
27ft
28ft2
30ft 2 units Plan to alternate units can also run in series or parallel
Notes 60 units 61 meq
Page 3 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
HC1 required to achieve setpoint 25 meq Total acidity required 86 meq HCI solution strength 9NHC1 addition rate 007 gpmDesired storage time - 30 days HCI storage volume reqd 2900 gallons HCI tank diameter 7 feet HCI tank height 111 feet Actual tank volume w freeboard 3190 gallons
Act alum surface loading rate 1 gpmft2
Required surface area 70ft2
Required diameter 47ft
Unit size provided 79ft2
Diameter provided 50ft EBCT required 50 min Volume to satisfy EBCT 47 cu ft Bed volumes to breakthrough 10000 volumes Desired time to breakthrough 90 days Bed vol reqd for breakthrough 121 cu ft Controlling bed volume 121 cu ft Number of units 2 units
Granular Activated Carbon Carbon vessels required 2 units Flow rate 700 gpm Min vessel diameter 48 inches Mass of carbon in vessel 1700 Ibs Mass of carbon used per day 3 Ibs Life of vessel 15 years
Clearwell and backwash settling tanks Filter backwash rate 175 gpm Backwash cycles per day 2 cycles Backwash duration 10 minutes Settling tank hold time 2 days Settling tank volume required 7000 gallons Settling tank diameter 9 feet Settling tank height 157 feet Actual tank volume w freeboard 7480 gallons
20 deg Be = 30 soln = 92 N 94 gpd
Includes 1 ft freeboard
1 to 5 gpm per sq ft recommended in AWWA
FromAWWAp 615 Regenerate once per quarter Complicated task
Plan to alternate units can also run in series or parallel
Notes Plan to run in series
Based on use rate of 003 lb1000 gal from Calgon
Notes Assume 250 of forward flow rate
Includes 1 ft freeboard
Page 4 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Clearwell volume required Cleanvell tank diameter Clearwell tank height Actual tank volume w freeboard
Sludge storagethickening tank Mass of Fe removed
Mass of Mn removed
Mass of As removed
Misc other metals removed Total metals removed Cone of As in dry sludge Hazardous waste Settled sludge concentration Sludge specific gravity Settled sludge volume Sludge holding between presses Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard
Polymer day tank Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard Polymer dose Polymer use
Sludge press Pressed sludge concentration Sludge specific gravity
Pressed sludge volume Pressed sludge mass
1750 gallons 6 feet
93 feet 1960 gallons
38 Ibday 72 Ibday
23 Ibday
37 Ibday 01 Ibday 02 Ibday 11 Ibday
120 Ibday 980 mgkg Yes
20000 mgL 101 714 galday
7 days maximum
Includes bull=11 ft freeboard
Notes asFe as Fe(OH)3
as Mn includes Mn added with KMnO4
asMnO2
as As as As(OH) assumes 10 of Fe Mn total
Hazardous waste threshhold is 100 mgkg 2
5100 gallons 8 feet
145 feet 5480 gallons
30 gallons 2 feet
23 feet 50 gallons 10 mgL 22 Ibyear
400000 mgL 140
26 galday 300 Ibday
Includes 1 ft freeboard
Notes Polymer diluted in day tank dosed in-line w static mixer
Includes 1 ft freeboard
3 ftVday 45 tonmonth
Page 5 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Required press volume Length Width Height Initial press fill time AOD pump flow rate Compressed air flow rate HP required
Discharge piping Flow rate Desired flow velocity in piping East well line diameter Line length
4ft3
62ft 3 f t 41 ft
5 min 6 gpm
12 scfm 3hp
70 gpm 4 ftsec 3 inches
1070 feet
Assumes more than one press cycle per day as reqd Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI recommendation at peak 100 psi discharge (incorporates 2x correction for high viscosity) Assumes 4 cfmhp
Notes
Page 6 of 6
WOODARDlaquoSLCURRANEngineering bull Science bull Operations
CLIENT
PROJECT H^r^i i^d-ftli
41 HUTCHINS DRIVE DESIGNEDESIGNEDD BBYY Lbull ~~T7lSdltU t tvesampt DATE
PORTLAND MAINE 04102 CHECKED BY pW DATE
TEL (207)774-21121 M^ o- gt
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TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
$142000
$851000
$43000 $43000 $85000 $85000
$256000
$1107000
$5000 $40000 $27000
$72000 $7000
$14000
$93000
$509000
$125000
$1^51000
$60000
$129000
$3296000
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DESIGNED BY DATE 41 HUTCHINS DRIVE
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TABLE 7-14 COST ESTIMATE ALTERNATIVE SML-5B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
$129000
$6919000
Feasibility Study 31000
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- barcode 6869
- barcodetext SDMS Doc ID 6869
COST CATEGORIES
Labor (1 full-time operator) Electricity Other utilities (oil phone) Chemicals Maintenance 5 of capital Sludge disposal Monitoring OfficeSuppliesMiscdisposable items
TOTAL COST
ANNUAL COSTS
$73000 $9000 $5000
$47000 $27300 $13700 $17080 $5000
$197000
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM)
POWER ESTIMATE
2 Extraction pumps 2 Continuous mixers 4 Chemical Feed Pumps 1 Transfer Pump 1 Air Compressor HVACLights Miscellaneous
j bull bull H P shy
280300100200300300200
8 r HOURS ^ K W DAY
209 24 224 24 075 24 149 24 224 6 224 18 149 24
KWH DAY shy
50 54 18 36 13 40 36
ELECTRIC POWER SUMMARY HP KW
KWH DAY
KWH YEAR
TOTAL 1680 1253 247 90182
UNIT POWER COST SO 100 |
TOTAL ANNUAL POWER COST $9000 |
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Chemical Costs
QUANTITY CHEMICAL YEAR
Sodium Hydroxide (25) 30130 Hydrochloric Acid (30) 34488 Potassium Permanganate pure solid 6117 Polymer 22 GAC 1104
Subtotal Freight (10)
SUBTOTAL CHEMICALS
Sludge Costs
ITEM Wet Tonsyr 55 Unit Hauling and Tipping cost ($WT) $250 Sludge Disposal Cost (Syr) 513695 Assuming Sludge is disposed of as hazardous waste
UNITS
Gal Gal Lbs Lbs Lbs
UNIT COST
$040 $060 $160 $250 $300
ANNUAL COST
$12100 $20693 $9800
$100 $3300
$42693 $4269
$46962
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Monitoring Costs
1 Extraction Wells (Monitored Quarterly) No of Samples = 2
1 1
MSMSD =
4
Trip Blanks =Duplicates =
Eq Blanks = 0 Total =
Cost for VOC Analysis =Cost for Metals Analysis=
Monitoring Frequency =
Cost Subtotal =
0
$147 (for VOC Method 8260) $ 181 (for TAL Metals Method SW-846)
4 times per year
$5200 per year
2
QAQC =Total = 3
0
Cost for VOC Analysis =Cost for Metals Analysis =
Monitoring Frequency =
Cost Subtotal =
Total Cost =
Treatment System Sampling (Monthly) No of Samples= 3
$150 (for VOC Method 8260) $ 180 (for TAL Metals Method S W-846)
12 times per year
511880 per year
$17080 per year
Influent Criteria Flow r^70gpm Mn --li7 mgL As Fe Jgt 45 mgL pH ^-61 units
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Source 0101 MOD Modflow modelling by JRH w 15 safety factor
Average of wells 95-4SAB and 97-14S-1 and 2 shyAverage of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB
Alkalinity 3pmgLasCaCO3 Average of wells 95-4SAB and 97-14S-1 and 2 Benzene ^2uc Average of wells 95-4SAB
Effluent Criteria Mn 084 mgL As 005 mgL Benzene 5 ugL
Assumptions All metals in reduced state Linear titration curve between pH 45 and 105
Unit Processes Wells pumps and piping KMnO4 and NaOH rapid mix addition Oxidation tank w mixer Lamella inclined plate separator Transfer tank and pumps Manganese greensand filters HCI addition Activated alumina ion exchange Granular activated carbon vessels Backwash tank Sludge thickening tank Polymer mixing tank Sludge press Discharge piping
Wells pumps and piping Desired flow velocity in piping East well flow East well line diameter
Function Deliver groundwater to treatment Oxidize Fe Mn As pH adjust to 80 Oxidize Fe Mn As pH adjust to 80 Remove majority of Fe some Mn and As Shift from gravity to pressure operation Remove Fe Mn to less than 05 ppm Adjust pH to 60 Remove As to less than 30 ppb Remove VOCs Collect and settle backwash water to minimize volume Mix sludge with polymer for enhanced dewatering Prepare polymer for mixing with sludge Press sludge for disposal Convey clean water to discharge point
Notes 4 ftsec
23 gpm 2 inches
Page 1 of 6
Saco Landfill Groundwater Pump amp Treat System
Line length Depth to screen midpoint Additional head required Total head required Pump size required West well flow West well line diameter Line length Depth to screen midpoint Additional head required Total head required Pump size required
KMnO4 and NaOH and caustic Mix tank residence time Mix tank volume Tank diameter Tank height Actual tank volume w freeboard Dose KMnO4 required
KMnO4 solution strength
KMnO4 addition rate Desired storage time KMnO4 storage volume reqd
KMnO4 Tank diameter
KMnO4 tank height Actual tank volume w freeboard Desired pH Alk per pH unit (as CaCO3) Alkalinity lost in oxidation Total alkalinity required NaOH solution strength NaOH addition rate Desired storage time NaOH storage volume reqd NaOH tank diameter NaOH tank height Actual tank volume w freeboard
Conceptual Design 580 feet 60 feet 44to76bgs
50^ feet 25 feet elevation difference + 10 psi excess 110 feet 11 hp 47 gpm
2 inches 580 feet 32 feet 18to46bgs 50 feet 82 feet 17hp
addition Notes 5 mm Reasonable time for stable pH control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
57 mgL Dose 094 Iblb Fe 192 Iblb Mn 2 Iblb As
50000 mgL
008 gpm 116 gpd 17 IbMnday
30 days 3500 gallons
7 feet
131 feet Includes 1 ft freeboard 3790 gallons
80 units 177 mgL 35 meq 15 meq 149 Ib as CaCO3lb Fe 121 Iblb Mn 2 Iblb As 61 meq 75 N 25 (ww) NaOH approx = 75N
006 gpm 83 gpd 30 days
2500 gallons 7 feet
97 feet Includes 1 ft freeboard 2790 gallons
Page 2 of 6
Saco Landfill Ground water Pump amp Treat System
Oxidation tank Oxidation tank residence time Oxidation tank volume Tank diameter Tank height Actual tank volume w freeboard
Lamella inclined plate separator
Surface loading rate
Required surface area
Unit size Number of units Approx height Approx length Approx width
Transfer tank and pumps Transfer tank residence time Transfer tank volume Tank diameter Tank height Actual tank volume w freeboard Pump capacity Pump flow Pump horsepower
Manganese greensand filters
Surface loading rate
Required surface area Required diameter
Unit size provided Diameter provided Number of units
Activated alumina ion exchange Desired pH for act alumina HC1 required to offset NaOH
Conceptual Design Notes
25 min Reaction time of 5 to 30 minutes suggested in AWWA 1800 gallons
6 feet 95 feet Includes 1 ft freeboard
2010 gallons
04 gpmfr 04 to 06 gpmsq ft recommended by Parkson
175ft2
240ft2 Unit sizes of 240480 740 and 1150 sq ft available 1 unit
13 feet Dimensions from Parkson 11 feet 6 feet
Notes 5 min Reasonable time for stable pump control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
70 ft head 30 psi 70 gpm
21 HP
3 gpmft2 3 to 5 gpm per sq ft recommended in AWWA
23 ft2
27ft
28ft2
30ft 2 units Plan to alternate units can also run in series or parallel
Notes 60 units 61 meq
Page 3 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
HC1 required to achieve setpoint 25 meq Total acidity required 86 meq HCI solution strength 9NHC1 addition rate 007 gpmDesired storage time - 30 days HCI storage volume reqd 2900 gallons HCI tank diameter 7 feet HCI tank height 111 feet Actual tank volume w freeboard 3190 gallons
Act alum surface loading rate 1 gpmft2
Required surface area 70ft2
Required diameter 47ft
Unit size provided 79ft2
Diameter provided 50ft EBCT required 50 min Volume to satisfy EBCT 47 cu ft Bed volumes to breakthrough 10000 volumes Desired time to breakthrough 90 days Bed vol reqd for breakthrough 121 cu ft Controlling bed volume 121 cu ft Number of units 2 units
Granular Activated Carbon Carbon vessels required 2 units Flow rate 700 gpm Min vessel diameter 48 inches Mass of carbon in vessel 1700 Ibs Mass of carbon used per day 3 Ibs Life of vessel 15 years
Clearwell and backwash settling tanks Filter backwash rate 175 gpm Backwash cycles per day 2 cycles Backwash duration 10 minutes Settling tank hold time 2 days Settling tank volume required 7000 gallons Settling tank diameter 9 feet Settling tank height 157 feet Actual tank volume w freeboard 7480 gallons
20 deg Be = 30 soln = 92 N 94 gpd
Includes 1 ft freeboard
1 to 5 gpm per sq ft recommended in AWWA
FromAWWAp 615 Regenerate once per quarter Complicated task
Plan to alternate units can also run in series or parallel
Notes Plan to run in series
Based on use rate of 003 lb1000 gal from Calgon
Notes Assume 250 of forward flow rate
Includes 1 ft freeboard
Page 4 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Clearwell volume required Cleanvell tank diameter Clearwell tank height Actual tank volume w freeboard
Sludge storagethickening tank Mass of Fe removed
Mass of Mn removed
Mass of As removed
Misc other metals removed Total metals removed Cone of As in dry sludge Hazardous waste Settled sludge concentration Sludge specific gravity Settled sludge volume Sludge holding between presses Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard
Polymer day tank Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard Polymer dose Polymer use
Sludge press Pressed sludge concentration Sludge specific gravity
Pressed sludge volume Pressed sludge mass
1750 gallons 6 feet
93 feet 1960 gallons
38 Ibday 72 Ibday
23 Ibday
37 Ibday 01 Ibday 02 Ibday 11 Ibday
120 Ibday 980 mgkg Yes
20000 mgL 101 714 galday
7 days maximum
Includes bull=11 ft freeboard
Notes asFe as Fe(OH)3
as Mn includes Mn added with KMnO4
asMnO2
as As as As(OH) assumes 10 of Fe Mn total
Hazardous waste threshhold is 100 mgkg 2
5100 gallons 8 feet
145 feet 5480 gallons
30 gallons 2 feet
23 feet 50 gallons 10 mgL 22 Ibyear
400000 mgL 140
26 galday 300 Ibday
Includes 1 ft freeboard
Notes Polymer diluted in day tank dosed in-line w static mixer
Includes 1 ft freeboard
3 ftVday 45 tonmonth
Page 5 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Required press volume Length Width Height Initial press fill time AOD pump flow rate Compressed air flow rate HP required
Discharge piping Flow rate Desired flow velocity in piping East well line diameter Line length
4ft3
62ft 3 f t 41 ft
5 min 6 gpm
12 scfm 3hp
70 gpm 4 ftsec 3 inches
1070 feet
Assumes more than one press cycle per day as reqd Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI recommendation at peak 100 psi discharge (incorporates 2x correction for high viscosity) Assumes 4 cfmhp
Notes
Page 6 of 6
WOODARDlaquoSLCURRANEngineering bull Science bull Operations
CLIENT
PROJECT H^r^i i^d-ftli
41 HUTCHINS DRIVE DESIGNEDESIGNEDD BBYY Lbull ~~T7lSdltU t tvesampt DATE
PORTLAND MAINE 04102 CHECKED BY pW DATE
TEL (207)774-21121 M^ o- gt
PROJECT NO 7S7gt3ampb SHEET NO V
OF
fshy
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TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
$142000
$851000
$43000 $43000 $85000 $85000
$256000
$1107000
$5000 $40000 $27000
$72000 $7000
$14000
$93000
$509000
$125000
$1^51000
$60000
$129000
$3296000
Feasibility Study 31000
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TABLE 7-14 COST ESTIMATE ALTERNATIVE SML-5B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
$129000
$6919000
Feasibility Study 31000
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- barcode 6869
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Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM)
POWER ESTIMATE
2 Extraction pumps 2 Continuous mixers 4 Chemical Feed Pumps 1 Transfer Pump 1 Air Compressor HVACLights Miscellaneous
j bull bull H P shy
280300100200300300200
8 r HOURS ^ K W DAY
209 24 224 24 075 24 149 24 224 6 224 18 149 24
KWH DAY shy
50 54 18 36 13 40 36
ELECTRIC POWER SUMMARY HP KW
KWH DAY
KWH YEAR
TOTAL 1680 1253 247 90182
UNIT POWER COST SO 100 |
TOTAL ANNUAL POWER COST $9000 |
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Chemical Costs
QUANTITY CHEMICAL YEAR
Sodium Hydroxide (25) 30130 Hydrochloric Acid (30) 34488 Potassium Permanganate pure solid 6117 Polymer 22 GAC 1104
Subtotal Freight (10)
SUBTOTAL CHEMICALS
Sludge Costs
ITEM Wet Tonsyr 55 Unit Hauling and Tipping cost ($WT) $250 Sludge Disposal Cost (Syr) 513695 Assuming Sludge is disposed of as hazardous waste
UNITS
Gal Gal Lbs Lbs Lbs
UNIT COST
$040 $060 $160 $250 $300
ANNUAL COST
$12100 $20693 $9800
$100 $3300
$42693 $4269
$46962
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Monitoring Costs
1 Extraction Wells (Monitored Quarterly) No of Samples = 2
1 1
MSMSD =
4
Trip Blanks =Duplicates =
Eq Blanks = 0 Total =
Cost for VOC Analysis =Cost for Metals Analysis=
Monitoring Frequency =
Cost Subtotal =
0
$147 (for VOC Method 8260) $ 181 (for TAL Metals Method SW-846)
4 times per year
$5200 per year
2
QAQC =Total = 3
0
Cost for VOC Analysis =Cost for Metals Analysis =
Monitoring Frequency =
Cost Subtotal =
Total Cost =
Treatment System Sampling (Monthly) No of Samples= 3
$150 (for VOC Method 8260) $ 180 (for TAL Metals Method S W-846)
12 times per year
511880 per year
$17080 per year
Influent Criteria Flow r^70gpm Mn --li7 mgL As Fe Jgt 45 mgL pH ^-61 units
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Source 0101 MOD Modflow modelling by JRH w 15 safety factor
Average of wells 95-4SAB and 97-14S-1 and 2 shyAverage of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB
Alkalinity 3pmgLasCaCO3 Average of wells 95-4SAB and 97-14S-1 and 2 Benzene ^2uc Average of wells 95-4SAB
Effluent Criteria Mn 084 mgL As 005 mgL Benzene 5 ugL
Assumptions All metals in reduced state Linear titration curve between pH 45 and 105
Unit Processes Wells pumps and piping KMnO4 and NaOH rapid mix addition Oxidation tank w mixer Lamella inclined plate separator Transfer tank and pumps Manganese greensand filters HCI addition Activated alumina ion exchange Granular activated carbon vessels Backwash tank Sludge thickening tank Polymer mixing tank Sludge press Discharge piping
Wells pumps and piping Desired flow velocity in piping East well flow East well line diameter
Function Deliver groundwater to treatment Oxidize Fe Mn As pH adjust to 80 Oxidize Fe Mn As pH adjust to 80 Remove majority of Fe some Mn and As Shift from gravity to pressure operation Remove Fe Mn to less than 05 ppm Adjust pH to 60 Remove As to less than 30 ppb Remove VOCs Collect and settle backwash water to minimize volume Mix sludge with polymer for enhanced dewatering Prepare polymer for mixing with sludge Press sludge for disposal Convey clean water to discharge point
Notes 4 ftsec
23 gpm 2 inches
Page 1 of 6
Saco Landfill Groundwater Pump amp Treat System
Line length Depth to screen midpoint Additional head required Total head required Pump size required West well flow West well line diameter Line length Depth to screen midpoint Additional head required Total head required Pump size required
KMnO4 and NaOH and caustic Mix tank residence time Mix tank volume Tank diameter Tank height Actual tank volume w freeboard Dose KMnO4 required
KMnO4 solution strength
KMnO4 addition rate Desired storage time KMnO4 storage volume reqd
KMnO4 Tank diameter
KMnO4 tank height Actual tank volume w freeboard Desired pH Alk per pH unit (as CaCO3) Alkalinity lost in oxidation Total alkalinity required NaOH solution strength NaOH addition rate Desired storage time NaOH storage volume reqd NaOH tank diameter NaOH tank height Actual tank volume w freeboard
Conceptual Design 580 feet 60 feet 44to76bgs
50^ feet 25 feet elevation difference + 10 psi excess 110 feet 11 hp 47 gpm
2 inches 580 feet 32 feet 18to46bgs 50 feet 82 feet 17hp
addition Notes 5 mm Reasonable time for stable pH control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
57 mgL Dose 094 Iblb Fe 192 Iblb Mn 2 Iblb As
50000 mgL
008 gpm 116 gpd 17 IbMnday
30 days 3500 gallons
7 feet
131 feet Includes 1 ft freeboard 3790 gallons
80 units 177 mgL 35 meq 15 meq 149 Ib as CaCO3lb Fe 121 Iblb Mn 2 Iblb As 61 meq 75 N 25 (ww) NaOH approx = 75N
006 gpm 83 gpd 30 days
2500 gallons 7 feet
97 feet Includes 1 ft freeboard 2790 gallons
Page 2 of 6
Saco Landfill Ground water Pump amp Treat System
Oxidation tank Oxidation tank residence time Oxidation tank volume Tank diameter Tank height Actual tank volume w freeboard
Lamella inclined plate separator
Surface loading rate
Required surface area
Unit size Number of units Approx height Approx length Approx width
Transfer tank and pumps Transfer tank residence time Transfer tank volume Tank diameter Tank height Actual tank volume w freeboard Pump capacity Pump flow Pump horsepower
Manganese greensand filters
Surface loading rate
Required surface area Required diameter
Unit size provided Diameter provided Number of units
Activated alumina ion exchange Desired pH for act alumina HC1 required to offset NaOH
Conceptual Design Notes
25 min Reaction time of 5 to 30 minutes suggested in AWWA 1800 gallons
6 feet 95 feet Includes 1 ft freeboard
2010 gallons
04 gpmfr 04 to 06 gpmsq ft recommended by Parkson
175ft2
240ft2 Unit sizes of 240480 740 and 1150 sq ft available 1 unit
13 feet Dimensions from Parkson 11 feet 6 feet
Notes 5 min Reasonable time for stable pump control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
70 ft head 30 psi 70 gpm
21 HP
3 gpmft2 3 to 5 gpm per sq ft recommended in AWWA
23 ft2
27ft
28ft2
30ft 2 units Plan to alternate units can also run in series or parallel
Notes 60 units 61 meq
Page 3 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
HC1 required to achieve setpoint 25 meq Total acidity required 86 meq HCI solution strength 9NHC1 addition rate 007 gpmDesired storage time - 30 days HCI storage volume reqd 2900 gallons HCI tank diameter 7 feet HCI tank height 111 feet Actual tank volume w freeboard 3190 gallons
Act alum surface loading rate 1 gpmft2
Required surface area 70ft2
Required diameter 47ft
Unit size provided 79ft2
Diameter provided 50ft EBCT required 50 min Volume to satisfy EBCT 47 cu ft Bed volumes to breakthrough 10000 volumes Desired time to breakthrough 90 days Bed vol reqd for breakthrough 121 cu ft Controlling bed volume 121 cu ft Number of units 2 units
Granular Activated Carbon Carbon vessels required 2 units Flow rate 700 gpm Min vessel diameter 48 inches Mass of carbon in vessel 1700 Ibs Mass of carbon used per day 3 Ibs Life of vessel 15 years
Clearwell and backwash settling tanks Filter backwash rate 175 gpm Backwash cycles per day 2 cycles Backwash duration 10 minutes Settling tank hold time 2 days Settling tank volume required 7000 gallons Settling tank diameter 9 feet Settling tank height 157 feet Actual tank volume w freeboard 7480 gallons
20 deg Be = 30 soln = 92 N 94 gpd
Includes 1 ft freeboard
1 to 5 gpm per sq ft recommended in AWWA
FromAWWAp 615 Regenerate once per quarter Complicated task
Plan to alternate units can also run in series or parallel
Notes Plan to run in series
Based on use rate of 003 lb1000 gal from Calgon
Notes Assume 250 of forward flow rate
Includes 1 ft freeboard
Page 4 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Clearwell volume required Cleanvell tank diameter Clearwell tank height Actual tank volume w freeboard
Sludge storagethickening tank Mass of Fe removed
Mass of Mn removed
Mass of As removed
Misc other metals removed Total metals removed Cone of As in dry sludge Hazardous waste Settled sludge concentration Sludge specific gravity Settled sludge volume Sludge holding between presses Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard
Polymer day tank Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard Polymer dose Polymer use
Sludge press Pressed sludge concentration Sludge specific gravity
Pressed sludge volume Pressed sludge mass
1750 gallons 6 feet
93 feet 1960 gallons
38 Ibday 72 Ibday
23 Ibday
37 Ibday 01 Ibday 02 Ibday 11 Ibday
120 Ibday 980 mgkg Yes
20000 mgL 101 714 galday
7 days maximum
Includes bull=11 ft freeboard
Notes asFe as Fe(OH)3
as Mn includes Mn added with KMnO4
asMnO2
as As as As(OH) assumes 10 of Fe Mn total
Hazardous waste threshhold is 100 mgkg 2
5100 gallons 8 feet
145 feet 5480 gallons
30 gallons 2 feet
23 feet 50 gallons 10 mgL 22 Ibyear
400000 mgL 140
26 galday 300 Ibday
Includes 1 ft freeboard
Notes Polymer diluted in day tank dosed in-line w static mixer
Includes 1 ft freeboard
3 ftVday 45 tonmonth
Page 5 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Required press volume Length Width Height Initial press fill time AOD pump flow rate Compressed air flow rate HP required
Discharge piping Flow rate Desired flow velocity in piping East well line diameter Line length
4ft3
62ft 3 f t 41 ft
5 min 6 gpm
12 scfm 3hp
70 gpm 4 ftsec 3 inches
1070 feet
Assumes more than one press cycle per day as reqd Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI recommendation at peak 100 psi discharge (incorporates 2x correction for high viscosity) Assumes 4 cfmhp
Notes
Page 6 of 6
WOODARDlaquoSLCURRANEngineering bull Science bull Operations
CLIENT
PROJECT H^r^i i^d-ftli
41 HUTCHINS DRIVE DESIGNEDESIGNEDD BBYY Lbull ~~T7lSdltU t tvesampt DATE
PORTLAND MAINE 04102 CHECKED BY pW DATE
TEL (207)774-21121 M^ o- gt
PROJECT NO 7S7gt3ampb SHEET NO V
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VODDAFDampCURRAN MEMORANDUM TO FILE Engineering bull Science bull Operations
bull
M0nri
Project No 2Z2plusmni n 8faMl
PHONE CALL PHONE MO V7V-2 2
PHONE CALL TO H3DD rlt PHONE NO 7^9- 8Z
SUBJECT or Tf
amp 3
OOQ
Clean
7^
Jand-fiil food I bgt
SIGNED
TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
$142000
$851000
$43000 $43000 $85000 $85000
$256000
$1107000
$5000 $40000 $27000
$72000 $7000
$14000
$93000
$509000
$125000
$1^51000
$60000
$129000
$3296000
Feasibility Study 31000
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TABLE 7-14 COST ESTIMATE ALTERNATIVE SML-5B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
$129000
$6919000
Feasibility Study 31000
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Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Chemical Costs
QUANTITY CHEMICAL YEAR
Sodium Hydroxide (25) 30130 Hydrochloric Acid (30) 34488 Potassium Permanganate pure solid 6117 Polymer 22 GAC 1104
Subtotal Freight (10)
SUBTOTAL CHEMICALS
Sludge Costs
ITEM Wet Tonsyr 55 Unit Hauling and Tipping cost ($WT) $250 Sludge Disposal Cost (Syr) 513695 Assuming Sludge is disposed of as hazardous waste
UNITS
Gal Gal Lbs Lbs Lbs
UNIT COST
$040 $060 $160 $250 $300
ANNUAL COST
$12100 $20693 $9800
$100 $3300
$42693 $4269
$46962
Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Monitoring Costs
1 Extraction Wells (Monitored Quarterly) No of Samples = 2
1 1
MSMSD =
4
Trip Blanks =Duplicates =
Eq Blanks = 0 Total =
Cost for VOC Analysis =Cost for Metals Analysis=
Monitoring Frequency =
Cost Subtotal =
0
$147 (for VOC Method 8260) $ 181 (for TAL Metals Method SW-846)
4 times per year
$5200 per year
2
QAQC =Total = 3
0
Cost for VOC Analysis =Cost for Metals Analysis =
Monitoring Frequency =
Cost Subtotal =
Total Cost =
Treatment System Sampling (Monthly) No of Samples= 3
$150 (for VOC Method 8260) $ 180 (for TAL Metals Method S W-846)
12 times per year
511880 per year
$17080 per year
Influent Criteria Flow r^70gpm Mn --li7 mgL As Fe Jgt 45 mgL pH ^-61 units
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Source 0101 MOD Modflow modelling by JRH w 15 safety factor
Average of wells 95-4SAB and 97-14S-1 and 2 shyAverage of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB
Alkalinity 3pmgLasCaCO3 Average of wells 95-4SAB and 97-14S-1 and 2 Benzene ^2uc Average of wells 95-4SAB
Effluent Criteria Mn 084 mgL As 005 mgL Benzene 5 ugL
Assumptions All metals in reduced state Linear titration curve between pH 45 and 105
Unit Processes Wells pumps and piping KMnO4 and NaOH rapid mix addition Oxidation tank w mixer Lamella inclined plate separator Transfer tank and pumps Manganese greensand filters HCI addition Activated alumina ion exchange Granular activated carbon vessels Backwash tank Sludge thickening tank Polymer mixing tank Sludge press Discharge piping
Wells pumps and piping Desired flow velocity in piping East well flow East well line diameter
Function Deliver groundwater to treatment Oxidize Fe Mn As pH adjust to 80 Oxidize Fe Mn As pH adjust to 80 Remove majority of Fe some Mn and As Shift from gravity to pressure operation Remove Fe Mn to less than 05 ppm Adjust pH to 60 Remove As to less than 30 ppb Remove VOCs Collect and settle backwash water to minimize volume Mix sludge with polymer for enhanced dewatering Prepare polymer for mixing with sludge Press sludge for disposal Convey clean water to discharge point
Notes 4 ftsec
23 gpm 2 inches
Page 1 of 6
Saco Landfill Groundwater Pump amp Treat System
Line length Depth to screen midpoint Additional head required Total head required Pump size required West well flow West well line diameter Line length Depth to screen midpoint Additional head required Total head required Pump size required
KMnO4 and NaOH and caustic Mix tank residence time Mix tank volume Tank diameter Tank height Actual tank volume w freeboard Dose KMnO4 required
KMnO4 solution strength
KMnO4 addition rate Desired storage time KMnO4 storage volume reqd
KMnO4 Tank diameter
KMnO4 tank height Actual tank volume w freeboard Desired pH Alk per pH unit (as CaCO3) Alkalinity lost in oxidation Total alkalinity required NaOH solution strength NaOH addition rate Desired storage time NaOH storage volume reqd NaOH tank diameter NaOH tank height Actual tank volume w freeboard
Conceptual Design 580 feet 60 feet 44to76bgs
50^ feet 25 feet elevation difference + 10 psi excess 110 feet 11 hp 47 gpm
2 inches 580 feet 32 feet 18to46bgs 50 feet 82 feet 17hp
addition Notes 5 mm Reasonable time for stable pH control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
57 mgL Dose 094 Iblb Fe 192 Iblb Mn 2 Iblb As
50000 mgL
008 gpm 116 gpd 17 IbMnday
30 days 3500 gallons
7 feet
131 feet Includes 1 ft freeboard 3790 gallons
80 units 177 mgL 35 meq 15 meq 149 Ib as CaCO3lb Fe 121 Iblb Mn 2 Iblb As 61 meq 75 N 25 (ww) NaOH approx = 75N
006 gpm 83 gpd 30 days
2500 gallons 7 feet
97 feet Includes 1 ft freeboard 2790 gallons
Page 2 of 6
Saco Landfill Ground water Pump amp Treat System
Oxidation tank Oxidation tank residence time Oxidation tank volume Tank diameter Tank height Actual tank volume w freeboard
Lamella inclined plate separator
Surface loading rate
Required surface area
Unit size Number of units Approx height Approx length Approx width
Transfer tank and pumps Transfer tank residence time Transfer tank volume Tank diameter Tank height Actual tank volume w freeboard Pump capacity Pump flow Pump horsepower
Manganese greensand filters
Surface loading rate
Required surface area Required diameter
Unit size provided Diameter provided Number of units
Activated alumina ion exchange Desired pH for act alumina HC1 required to offset NaOH
Conceptual Design Notes
25 min Reaction time of 5 to 30 minutes suggested in AWWA 1800 gallons
6 feet 95 feet Includes 1 ft freeboard
2010 gallons
04 gpmfr 04 to 06 gpmsq ft recommended by Parkson
175ft2
240ft2 Unit sizes of 240480 740 and 1150 sq ft available 1 unit
13 feet Dimensions from Parkson 11 feet 6 feet
Notes 5 min Reasonable time for stable pump control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
70 ft head 30 psi 70 gpm
21 HP
3 gpmft2 3 to 5 gpm per sq ft recommended in AWWA
23 ft2
27ft
28ft2
30ft 2 units Plan to alternate units can also run in series or parallel
Notes 60 units 61 meq
Page 3 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
HC1 required to achieve setpoint 25 meq Total acidity required 86 meq HCI solution strength 9NHC1 addition rate 007 gpmDesired storage time - 30 days HCI storage volume reqd 2900 gallons HCI tank diameter 7 feet HCI tank height 111 feet Actual tank volume w freeboard 3190 gallons
Act alum surface loading rate 1 gpmft2
Required surface area 70ft2
Required diameter 47ft
Unit size provided 79ft2
Diameter provided 50ft EBCT required 50 min Volume to satisfy EBCT 47 cu ft Bed volumes to breakthrough 10000 volumes Desired time to breakthrough 90 days Bed vol reqd for breakthrough 121 cu ft Controlling bed volume 121 cu ft Number of units 2 units
Granular Activated Carbon Carbon vessels required 2 units Flow rate 700 gpm Min vessel diameter 48 inches Mass of carbon in vessel 1700 Ibs Mass of carbon used per day 3 Ibs Life of vessel 15 years
Clearwell and backwash settling tanks Filter backwash rate 175 gpm Backwash cycles per day 2 cycles Backwash duration 10 minutes Settling tank hold time 2 days Settling tank volume required 7000 gallons Settling tank diameter 9 feet Settling tank height 157 feet Actual tank volume w freeboard 7480 gallons
20 deg Be = 30 soln = 92 N 94 gpd
Includes 1 ft freeboard
1 to 5 gpm per sq ft recommended in AWWA
FromAWWAp 615 Regenerate once per quarter Complicated task
Plan to alternate units can also run in series or parallel
Notes Plan to run in series
Based on use rate of 003 lb1000 gal from Calgon
Notes Assume 250 of forward flow rate
Includes 1 ft freeboard
Page 4 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Clearwell volume required Cleanvell tank diameter Clearwell tank height Actual tank volume w freeboard
Sludge storagethickening tank Mass of Fe removed
Mass of Mn removed
Mass of As removed
Misc other metals removed Total metals removed Cone of As in dry sludge Hazardous waste Settled sludge concentration Sludge specific gravity Settled sludge volume Sludge holding between presses Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard
Polymer day tank Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard Polymer dose Polymer use
Sludge press Pressed sludge concentration Sludge specific gravity
Pressed sludge volume Pressed sludge mass
1750 gallons 6 feet
93 feet 1960 gallons
38 Ibday 72 Ibday
23 Ibday
37 Ibday 01 Ibday 02 Ibday 11 Ibday
120 Ibday 980 mgkg Yes
20000 mgL 101 714 galday
7 days maximum
Includes bull=11 ft freeboard
Notes asFe as Fe(OH)3
as Mn includes Mn added with KMnO4
asMnO2
as As as As(OH) assumes 10 of Fe Mn total
Hazardous waste threshhold is 100 mgkg 2
5100 gallons 8 feet
145 feet 5480 gallons
30 gallons 2 feet
23 feet 50 gallons 10 mgL 22 Ibyear
400000 mgL 140
26 galday 300 Ibday
Includes 1 ft freeboard
Notes Polymer diluted in day tank dosed in-line w static mixer
Includes 1 ft freeboard
3 ftVday 45 tonmonth
Page 5 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Required press volume Length Width Height Initial press fill time AOD pump flow rate Compressed air flow rate HP required
Discharge piping Flow rate Desired flow velocity in piping East well line diameter Line length
4ft3
62ft 3 f t 41 ft
5 min 6 gpm
12 scfm 3hp
70 gpm 4 ftsec 3 inches
1070 feet
Assumes more than one press cycle per day as reqd Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI recommendation at peak 100 psi discharge (incorporates 2x correction for high viscosity) Assumes 4 cfmhp
Notes
Page 6 of 6
WOODARDlaquoSLCURRANEngineering bull Science bull Operations
CLIENT
PROJECT H^r^i i^d-ftli
41 HUTCHINS DRIVE DESIGNEDESIGNEDD BBYY Lbull ~~T7lSdltU t tvesampt DATE
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TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
$142000
$851000
$43000 $43000 $85000 $85000
$256000
$1107000
$5000 $40000 $27000
$72000 $7000
$14000
$93000
$509000
$125000
$1^51000
$60000
$129000
$3296000
Feasibility Study 31000
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TABLE 7-14 COST ESTIMATE ALTERNATIVE SML-5B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
$129000
$6919000
Feasibility Study 31000
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Saco Landfill Groundwater Pump amp Treat System ALTERNATIVE SML-5 (60-70 GPM) Monitoring Costs
1 Extraction Wells (Monitored Quarterly) No of Samples = 2
1 1
MSMSD =
4
Trip Blanks =Duplicates =
Eq Blanks = 0 Total =
Cost for VOC Analysis =Cost for Metals Analysis=
Monitoring Frequency =
Cost Subtotal =
0
$147 (for VOC Method 8260) $ 181 (for TAL Metals Method SW-846)
4 times per year
$5200 per year
2
QAQC =Total = 3
0
Cost for VOC Analysis =Cost for Metals Analysis =
Monitoring Frequency =
Cost Subtotal =
Total Cost =
Treatment System Sampling (Monthly) No of Samples= 3
$150 (for VOC Method 8260) $ 180 (for TAL Metals Method S W-846)
12 times per year
511880 per year
$17080 per year
Influent Criteria Flow r^70gpm Mn --li7 mgL As Fe Jgt 45 mgL pH ^-61 units
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Source 0101 MOD Modflow modelling by JRH w 15 safety factor
Average of wells 95-4SAB and 97-14S-1 and 2 shyAverage of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB
Alkalinity 3pmgLasCaCO3 Average of wells 95-4SAB and 97-14S-1 and 2 Benzene ^2uc Average of wells 95-4SAB
Effluent Criteria Mn 084 mgL As 005 mgL Benzene 5 ugL
Assumptions All metals in reduced state Linear titration curve between pH 45 and 105
Unit Processes Wells pumps and piping KMnO4 and NaOH rapid mix addition Oxidation tank w mixer Lamella inclined plate separator Transfer tank and pumps Manganese greensand filters HCI addition Activated alumina ion exchange Granular activated carbon vessels Backwash tank Sludge thickening tank Polymer mixing tank Sludge press Discharge piping
Wells pumps and piping Desired flow velocity in piping East well flow East well line diameter
Function Deliver groundwater to treatment Oxidize Fe Mn As pH adjust to 80 Oxidize Fe Mn As pH adjust to 80 Remove majority of Fe some Mn and As Shift from gravity to pressure operation Remove Fe Mn to less than 05 ppm Adjust pH to 60 Remove As to less than 30 ppb Remove VOCs Collect and settle backwash water to minimize volume Mix sludge with polymer for enhanced dewatering Prepare polymer for mixing with sludge Press sludge for disposal Convey clean water to discharge point
Notes 4 ftsec
23 gpm 2 inches
Page 1 of 6
Saco Landfill Groundwater Pump amp Treat System
Line length Depth to screen midpoint Additional head required Total head required Pump size required West well flow West well line diameter Line length Depth to screen midpoint Additional head required Total head required Pump size required
KMnO4 and NaOH and caustic Mix tank residence time Mix tank volume Tank diameter Tank height Actual tank volume w freeboard Dose KMnO4 required
KMnO4 solution strength
KMnO4 addition rate Desired storage time KMnO4 storage volume reqd
KMnO4 Tank diameter
KMnO4 tank height Actual tank volume w freeboard Desired pH Alk per pH unit (as CaCO3) Alkalinity lost in oxidation Total alkalinity required NaOH solution strength NaOH addition rate Desired storage time NaOH storage volume reqd NaOH tank diameter NaOH tank height Actual tank volume w freeboard
Conceptual Design 580 feet 60 feet 44to76bgs
50^ feet 25 feet elevation difference + 10 psi excess 110 feet 11 hp 47 gpm
2 inches 580 feet 32 feet 18to46bgs 50 feet 82 feet 17hp
addition Notes 5 mm Reasonable time for stable pH control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
57 mgL Dose 094 Iblb Fe 192 Iblb Mn 2 Iblb As
50000 mgL
008 gpm 116 gpd 17 IbMnday
30 days 3500 gallons
7 feet
131 feet Includes 1 ft freeboard 3790 gallons
80 units 177 mgL 35 meq 15 meq 149 Ib as CaCO3lb Fe 121 Iblb Mn 2 Iblb As 61 meq 75 N 25 (ww) NaOH approx = 75N
006 gpm 83 gpd 30 days
2500 gallons 7 feet
97 feet Includes 1 ft freeboard 2790 gallons
Page 2 of 6
Saco Landfill Ground water Pump amp Treat System
Oxidation tank Oxidation tank residence time Oxidation tank volume Tank diameter Tank height Actual tank volume w freeboard
Lamella inclined plate separator
Surface loading rate
Required surface area
Unit size Number of units Approx height Approx length Approx width
Transfer tank and pumps Transfer tank residence time Transfer tank volume Tank diameter Tank height Actual tank volume w freeboard Pump capacity Pump flow Pump horsepower
Manganese greensand filters
Surface loading rate
Required surface area Required diameter
Unit size provided Diameter provided Number of units
Activated alumina ion exchange Desired pH for act alumina HC1 required to offset NaOH
Conceptual Design Notes
25 min Reaction time of 5 to 30 minutes suggested in AWWA 1800 gallons
6 feet 95 feet Includes 1 ft freeboard
2010 gallons
04 gpmfr 04 to 06 gpmsq ft recommended by Parkson
175ft2
240ft2 Unit sizes of 240480 740 and 1150 sq ft available 1 unit
13 feet Dimensions from Parkson 11 feet 6 feet
Notes 5 min Reasonable time for stable pump control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
70 ft head 30 psi 70 gpm
21 HP
3 gpmft2 3 to 5 gpm per sq ft recommended in AWWA
23 ft2
27ft
28ft2
30ft 2 units Plan to alternate units can also run in series or parallel
Notes 60 units 61 meq
Page 3 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
HC1 required to achieve setpoint 25 meq Total acidity required 86 meq HCI solution strength 9NHC1 addition rate 007 gpmDesired storage time - 30 days HCI storage volume reqd 2900 gallons HCI tank diameter 7 feet HCI tank height 111 feet Actual tank volume w freeboard 3190 gallons
Act alum surface loading rate 1 gpmft2
Required surface area 70ft2
Required diameter 47ft
Unit size provided 79ft2
Diameter provided 50ft EBCT required 50 min Volume to satisfy EBCT 47 cu ft Bed volumes to breakthrough 10000 volumes Desired time to breakthrough 90 days Bed vol reqd for breakthrough 121 cu ft Controlling bed volume 121 cu ft Number of units 2 units
Granular Activated Carbon Carbon vessels required 2 units Flow rate 700 gpm Min vessel diameter 48 inches Mass of carbon in vessel 1700 Ibs Mass of carbon used per day 3 Ibs Life of vessel 15 years
Clearwell and backwash settling tanks Filter backwash rate 175 gpm Backwash cycles per day 2 cycles Backwash duration 10 minutes Settling tank hold time 2 days Settling tank volume required 7000 gallons Settling tank diameter 9 feet Settling tank height 157 feet Actual tank volume w freeboard 7480 gallons
20 deg Be = 30 soln = 92 N 94 gpd
Includes 1 ft freeboard
1 to 5 gpm per sq ft recommended in AWWA
FromAWWAp 615 Regenerate once per quarter Complicated task
Plan to alternate units can also run in series or parallel
Notes Plan to run in series
Based on use rate of 003 lb1000 gal from Calgon
Notes Assume 250 of forward flow rate
Includes 1 ft freeboard
Page 4 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Clearwell volume required Cleanvell tank diameter Clearwell tank height Actual tank volume w freeboard
Sludge storagethickening tank Mass of Fe removed
Mass of Mn removed
Mass of As removed
Misc other metals removed Total metals removed Cone of As in dry sludge Hazardous waste Settled sludge concentration Sludge specific gravity Settled sludge volume Sludge holding between presses Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard
Polymer day tank Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard Polymer dose Polymer use
Sludge press Pressed sludge concentration Sludge specific gravity
Pressed sludge volume Pressed sludge mass
1750 gallons 6 feet
93 feet 1960 gallons
38 Ibday 72 Ibday
23 Ibday
37 Ibday 01 Ibday 02 Ibday 11 Ibday
120 Ibday 980 mgkg Yes
20000 mgL 101 714 galday
7 days maximum
Includes bull=11 ft freeboard
Notes asFe as Fe(OH)3
as Mn includes Mn added with KMnO4
asMnO2
as As as As(OH) assumes 10 of Fe Mn total
Hazardous waste threshhold is 100 mgkg 2
5100 gallons 8 feet
145 feet 5480 gallons
30 gallons 2 feet
23 feet 50 gallons 10 mgL 22 Ibyear
400000 mgL 140
26 galday 300 Ibday
Includes 1 ft freeboard
Notes Polymer diluted in day tank dosed in-line w static mixer
Includes 1 ft freeboard
3 ftVday 45 tonmonth
Page 5 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Required press volume Length Width Height Initial press fill time AOD pump flow rate Compressed air flow rate HP required
Discharge piping Flow rate Desired flow velocity in piping East well line diameter Line length
4ft3
62ft 3 f t 41 ft
5 min 6 gpm
12 scfm 3hp
70 gpm 4 ftsec 3 inches
1070 feet
Assumes more than one press cycle per day as reqd Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI recommendation at peak 100 psi discharge (incorporates 2x correction for high viscosity) Assumes 4 cfmhp
Notes
Page 6 of 6
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TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
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FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
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FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
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$676000
$1322000
$264000
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$159000 $159000
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Influent Criteria Flow r^70gpm Mn --li7 mgL As Fe Jgt 45 mgL pH ^-61 units
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Source 0101 MOD Modflow modelling by JRH w 15 safety factor
Average of wells 95-4SAB and 97-14S-1 and 2 shyAverage of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB and 97-14S-1 and 2 Average of wells 95-4SAB
Alkalinity 3pmgLasCaCO3 Average of wells 95-4SAB and 97-14S-1 and 2 Benzene ^2uc Average of wells 95-4SAB
Effluent Criteria Mn 084 mgL As 005 mgL Benzene 5 ugL
Assumptions All metals in reduced state Linear titration curve between pH 45 and 105
Unit Processes Wells pumps and piping KMnO4 and NaOH rapid mix addition Oxidation tank w mixer Lamella inclined plate separator Transfer tank and pumps Manganese greensand filters HCI addition Activated alumina ion exchange Granular activated carbon vessels Backwash tank Sludge thickening tank Polymer mixing tank Sludge press Discharge piping
Wells pumps and piping Desired flow velocity in piping East well flow East well line diameter
Function Deliver groundwater to treatment Oxidize Fe Mn As pH adjust to 80 Oxidize Fe Mn As pH adjust to 80 Remove majority of Fe some Mn and As Shift from gravity to pressure operation Remove Fe Mn to less than 05 ppm Adjust pH to 60 Remove As to less than 30 ppb Remove VOCs Collect and settle backwash water to minimize volume Mix sludge with polymer for enhanced dewatering Prepare polymer for mixing with sludge Press sludge for disposal Convey clean water to discharge point
Notes 4 ftsec
23 gpm 2 inches
Page 1 of 6
Saco Landfill Groundwater Pump amp Treat System
Line length Depth to screen midpoint Additional head required Total head required Pump size required West well flow West well line diameter Line length Depth to screen midpoint Additional head required Total head required Pump size required
KMnO4 and NaOH and caustic Mix tank residence time Mix tank volume Tank diameter Tank height Actual tank volume w freeboard Dose KMnO4 required
KMnO4 solution strength
KMnO4 addition rate Desired storage time KMnO4 storage volume reqd
KMnO4 Tank diameter
KMnO4 tank height Actual tank volume w freeboard Desired pH Alk per pH unit (as CaCO3) Alkalinity lost in oxidation Total alkalinity required NaOH solution strength NaOH addition rate Desired storage time NaOH storage volume reqd NaOH tank diameter NaOH tank height Actual tank volume w freeboard
Conceptual Design 580 feet 60 feet 44to76bgs
50^ feet 25 feet elevation difference + 10 psi excess 110 feet 11 hp 47 gpm
2 inches 580 feet 32 feet 18to46bgs 50 feet 82 feet 17hp
addition Notes 5 mm Reasonable time for stable pH control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
57 mgL Dose 094 Iblb Fe 192 Iblb Mn 2 Iblb As
50000 mgL
008 gpm 116 gpd 17 IbMnday
30 days 3500 gallons
7 feet
131 feet Includes 1 ft freeboard 3790 gallons
80 units 177 mgL 35 meq 15 meq 149 Ib as CaCO3lb Fe 121 Iblb Mn 2 Iblb As 61 meq 75 N 25 (ww) NaOH approx = 75N
006 gpm 83 gpd 30 days
2500 gallons 7 feet
97 feet Includes 1 ft freeboard 2790 gallons
Page 2 of 6
Saco Landfill Ground water Pump amp Treat System
Oxidation tank Oxidation tank residence time Oxidation tank volume Tank diameter Tank height Actual tank volume w freeboard
Lamella inclined plate separator
Surface loading rate
Required surface area
Unit size Number of units Approx height Approx length Approx width
Transfer tank and pumps Transfer tank residence time Transfer tank volume Tank diameter Tank height Actual tank volume w freeboard Pump capacity Pump flow Pump horsepower
Manganese greensand filters
Surface loading rate
Required surface area Required diameter
Unit size provided Diameter provided Number of units
Activated alumina ion exchange Desired pH for act alumina HC1 required to offset NaOH
Conceptual Design Notes
25 min Reaction time of 5 to 30 minutes suggested in AWWA 1800 gallons
6 feet 95 feet Includes 1 ft freeboard
2010 gallons
04 gpmfr 04 to 06 gpmsq ft recommended by Parkson
175ft2
240ft2 Unit sizes of 240480 740 and 1150 sq ft available 1 unit
13 feet Dimensions from Parkson 11 feet 6 feet
Notes 5 min Reasonable time for stable pump control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
70 ft head 30 psi 70 gpm
21 HP
3 gpmft2 3 to 5 gpm per sq ft recommended in AWWA
23 ft2
27ft
28ft2
30ft 2 units Plan to alternate units can also run in series or parallel
Notes 60 units 61 meq
Page 3 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
HC1 required to achieve setpoint 25 meq Total acidity required 86 meq HCI solution strength 9NHC1 addition rate 007 gpmDesired storage time - 30 days HCI storage volume reqd 2900 gallons HCI tank diameter 7 feet HCI tank height 111 feet Actual tank volume w freeboard 3190 gallons
Act alum surface loading rate 1 gpmft2
Required surface area 70ft2
Required diameter 47ft
Unit size provided 79ft2
Diameter provided 50ft EBCT required 50 min Volume to satisfy EBCT 47 cu ft Bed volumes to breakthrough 10000 volumes Desired time to breakthrough 90 days Bed vol reqd for breakthrough 121 cu ft Controlling bed volume 121 cu ft Number of units 2 units
Granular Activated Carbon Carbon vessels required 2 units Flow rate 700 gpm Min vessel diameter 48 inches Mass of carbon in vessel 1700 Ibs Mass of carbon used per day 3 Ibs Life of vessel 15 years
Clearwell and backwash settling tanks Filter backwash rate 175 gpm Backwash cycles per day 2 cycles Backwash duration 10 minutes Settling tank hold time 2 days Settling tank volume required 7000 gallons Settling tank diameter 9 feet Settling tank height 157 feet Actual tank volume w freeboard 7480 gallons
20 deg Be = 30 soln = 92 N 94 gpd
Includes 1 ft freeboard
1 to 5 gpm per sq ft recommended in AWWA
FromAWWAp 615 Regenerate once per quarter Complicated task
Plan to alternate units can also run in series or parallel
Notes Plan to run in series
Based on use rate of 003 lb1000 gal from Calgon
Notes Assume 250 of forward flow rate
Includes 1 ft freeboard
Page 4 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Clearwell volume required Cleanvell tank diameter Clearwell tank height Actual tank volume w freeboard
Sludge storagethickening tank Mass of Fe removed
Mass of Mn removed
Mass of As removed
Misc other metals removed Total metals removed Cone of As in dry sludge Hazardous waste Settled sludge concentration Sludge specific gravity Settled sludge volume Sludge holding between presses Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard
Polymer day tank Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard Polymer dose Polymer use
Sludge press Pressed sludge concentration Sludge specific gravity
Pressed sludge volume Pressed sludge mass
1750 gallons 6 feet
93 feet 1960 gallons
38 Ibday 72 Ibday
23 Ibday
37 Ibday 01 Ibday 02 Ibday 11 Ibday
120 Ibday 980 mgkg Yes
20000 mgL 101 714 galday
7 days maximum
Includes bull=11 ft freeboard
Notes asFe as Fe(OH)3
as Mn includes Mn added with KMnO4
asMnO2
as As as As(OH) assumes 10 of Fe Mn total
Hazardous waste threshhold is 100 mgkg 2
5100 gallons 8 feet
145 feet 5480 gallons
30 gallons 2 feet
23 feet 50 gallons 10 mgL 22 Ibyear
400000 mgL 140
26 galday 300 Ibday
Includes 1 ft freeboard
Notes Polymer diluted in day tank dosed in-line w static mixer
Includes 1 ft freeboard
3 ftVday 45 tonmonth
Page 5 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Required press volume Length Width Height Initial press fill time AOD pump flow rate Compressed air flow rate HP required
Discharge piping Flow rate Desired flow velocity in piping East well line diameter Line length
4ft3
62ft 3 f t 41 ft
5 min 6 gpm
12 scfm 3hp
70 gpm 4 ftsec 3 inches
1070 feet
Assumes more than one press cycle per day as reqd Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI recommendation at peak 100 psi discharge (incorporates 2x correction for high viscosity) Assumes 4 cfmhp
Notes
Page 6 of 6
WOODARDlaquoSLCURRANEngineering bull Science bull Operations
CLIENT
PROJECT H^r^i i^d-ftli
41 HUTCHINS DRIVE DESIGNEDESIGNEDD BBYY Lbull ~~T7lSdltU t tvesampt DATE
PORTLAND MAINE 04102 CHECKED BY pW DATE
TEL (207)774-21121 M^ o- gt
PROJECT NO 7S7gt3ampb SHEET NO V
OF
fshy
- proposed ^e-2poundgtgt)euro-TC3 ^ be lop 115 s sliDuon On
5fe amppamp$ TO te ri^iii^ J 7 ) c^r -P-f fc^s for^ off bull- as- ^f- ia^
7deg vSs piCZ^^neKr^ bull Sc-Lamp^un^^ TTb -jn 3^^S 7T- ^70 5
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(3fgtc^ J p
3 feuro 2)
(Hdltu^ (l^Kda^ (6^Vhrj = I 2ZO
aid - ^ooo
VODDAFDampCURRAN MEMORANDUM TO FILE Engineering bull Science bull Operations
bull
M0nri
Project No 2Z2plusmni n 8faMl
PHONE CALL PHONE MO V7V-2 2
PHONE CALL TO H3DD rlt PHONE NO 7^9- 8Z
SUBJECT or Tf
amp 3
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Clean
7^
Jand-fiil food I bgt
SIGNED
TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
$142000
$851000
$43000 $43000 $85000 $85000
$256000
$1107000
$5000 $40000 $27000
$72000 $7000
$14000
$93000
$509000
$125000
$1^51000
$60000
$129000
$3296000
Feasibility Study 31000
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CUENrWODQARDampCURRAN deg A gt Engineering bull Science bull Operations PROJECT foa ltib)li X t
41 HUTCHINS DRIVE DESIGNED BY _ 77raquopoundVdraquo lt_ mdash DATE PORTLAND MAINE 04102 CHECKED BY _ ( gtA^A^_ DATE f I Vf TEL (207)774-21 12
of7
casf ^seo oo as^u^pos n Bob SWWUL -fo 6vpy V^ll^roorl an a1 Bill ffeK^u
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CLIENT WOODARDampCUFtfWJ Engineering bull Science bull Operations PROJECT
DESIGNED BY DATE 41 HUTCHINS DRIVE
PORTLAND MAINE 04102 CHECKED BY _ DATE TEL (207)774-2112
2=
A VJWTP
ooo
fSgt of e
TABLE 7-14 COST ESTIMATE ALTERNATIVE SML-5B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
$129000
$6919000
Feasibility Study 31000
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- barcode 6869
- barcodetext SDMS Doc ID 6869
Saco Landfill Groundwater Pump amp Treat System
Line length Depth to screen midpoint Additional head required Total head required Pump size required West well flow West well line diameter Line length Depth to screen midpoint Additional head required Total head required Pump size required
KMnO4 and NaOH and caustic Mix tank residence time Mix tank volume Tank diameter Tank height Actual tank volume w freeboard Dose KMnO4 required
KMnO4 solution strength
KMnO4 addition rate Desired storage time KMnO4 storage volume reqd
KMnO4 Tank diameter
KMnO4 tank height Actual tank volume w freeboard Desired pH Alk per pH unit (as CaCO3) Alkalinity lost in oxidation Total alkalinity required NaOH solution strength NaOH addition rate Desired storage time NaOH storage volume reqd NaOH tank diameter NaOH tank height Actual tank volume w freeboard
Conceptual Design 580 feet 60 feet 44to76bgs
50^ feet 25 feet elevation difference + 10 psi excess 110 feet 11 hp 47 gpm
2 inches 580 feet 32 feet 18to46bgs 50 feet 82 feet 17hp
addition Notes 5 mm Reasonable time for stable pH control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
57 mgL Dose 094 Iblb Fe 192 Iblb Mn 2 Iblb As
50000 mgL
008 gpm 116 gpd 17 IbMnday
30 days 3500 gallons
7 feet
131 feet Includes 1 ft freeboard 3790 gallons
80 units 177 mgL 35 meq 15 meq 149 Ib as CaCO3lb Fe 121 Iblb Mn 2 Iblb As 61 meq 75 N 25 (ww) NaOH approx = 75N
006 gpm 83 gpd 30 days
2500 gallons 7 feet
97 feet Includes 1 ft freeboard 2790 gallons
Page 2 of 6
Saco Landfill Ground water Pump amp Treat System
Oxidation tank Oxidation tank residence time Oxidation tank volume Tank diameter Tank height Actual tank volume w freeboard
Lamella inclined plate separator
Surface loading rate
Required surface area
Unit size Number of units Approx height Approx length Approx width
Transfer tank and pumps Transfer tank residence time Transfer tank volume Tank diameter Tank height Actual tank volume w freeboard Pump capacity Pump flow Pump horsepower
Manganese greensand filters
Surface loading rate
Required surface area Required diameter
Unit size provided Diameter provided Number of units
Activated alumina ion exchange Desired pH for act alumina HC1 required to offset NaOH
Conceptual Design Notes
25 min Reaction time of 5 to 30 minutes suggested in AWWA 1800 gallons
6 feet 95 feet Includes 1 ft freeboard
2010 gallons
04 gpmfr 04 to 06 gpmsq ft recommended by Parkson
175ft2
240ft2 Unit sizes of 240480 740 and 1150 sq ft available 1 unit
13 feet Dimensions from Parkson 11 feet 6 feet
Notes 5 min Reasonable time for stable pump control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
70 ft head 30 psi 70 gpm
21 HP
3 gpmft2 3 to 5 gpm per sq ft recommended in AWWA
23 ft2
27ft
28ft2
30ft 2 units Plan to alternate units can also run in series or parallel
Notes 60 units 61 meq
Page 3 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
HC1 required to achieve setpoint 25 meq Total acidity required 86 meq HCI solution strength 9NHC1 addition rate 007 gpmDesired storage time - 30 days HCI storage volume reqd 2900 gallons HCI tank diameter 7 feet HCI tank height 111 feet Actual tank volume w freeboard 3190 gallons
Act alum surface loading rate 1 gpmft2
Required surface area 70ft2
Required diameter 47ft
Unit size provided 79ft2
Diameter provided 50ft EBCT required 50 min Volume to satisfy EBCT 47 cu ft Bed volumes to breakthrough 10000 volumes Desired time to breakthrough 90 days Bed vol reqd for breakthrough 121 cu ft Controlling bed volume 121 cu ft Number of units 2 units
Granular Activated Carbon Carbon vessels required 2 units Flow rate 700 gpm Min vessel diameter 48 inches Mass of carbon in vessel 1700 Ibs Mass of carbon used per day 3 Ibs Life of vessel 15 years
Clearwell and backwash settling tanks Filter backwash rate 175 gpm Backwash cycles per day 2 cycles Backwash duration 10 minutes Settling tank hold time 2 days Settling tank volume required 7000 gallons Settling tank diameter 9 feet Settling tank height 157 feet Actual tank volume w freeboard 7480 gallons
20 deg Be = 30 soln = 92 N 94 gpd
Includes 1 ft freeboard
1 to 5 gpm per sq ft recommended in AWWA
FromAWWAp 615 Regenerate once per quarter Complicated task
Plan to alternate units can also run in series or parallel
Notes Plan to run in series
Based on use rate of 003 lb1000 gal from Calgon
Notes Assume 250 of forward flow rate
Includes 1 ft freeboard
Page 4 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Clearwell volume required Cleanvell tank diameter Clearwell tank height Actual tank volume w freeboard
Sludge storagethickening tank Mass of Fe removed
Mass of Mn removed
Mass of As removed
Misc other metals removed Total metals removed Cone of As in dry sludge Hazardous waste Settled sludge concentration Sludge specific gravity Settled sludge volume Sludge holding between presses Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard
Polymer day tank Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard Polymer dose Polymer use
Sludge press Pressed sludge concentration Sludge specific gravity
Pressed sludge volume Pressed sludge mass
1750 gallons 6 feet
93 feet 1960 gallons
38 Ibday 72 Ibday
23 Ibday
37 Ibday 01 Ibday 02 Ibday 11 Ibday
120 Ibday 980 mgkg Yes
20000 mgL 101 714 galday
7 days maximum
Includes bull=11 ft freeboard
Notes asFe as Fe(OH)3
as Mn includes Mn added with KMnO4
asMnO2
as As as As(OH) assumes 10 of Fe Mn total
Hazardous waste threshhold is 100 mgkg 2
5100 gallons 8 feet
145 feet 5480 gallons
30 gallons 2 feet
23 feet 50 gallons 10 mgL 22 Ibyear
400000 mgL 140
26 galday 300 Ibday
Includes 1 ft freeboard
Notes Polymer diluted in day tank dosed in-line w static mixer
Includes 1 ft freeboard
3 ftVday 45 tonmonth
Page 5 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Required press volume Length Width Height Initial press fill time AOD pump flow rate Compressed air flow rate HP required
Discharge piping Flow rate Desired flow velocity in piping East well line diameter Line length
4ft3
62ft 3 f t 41 ft
5 min 6 gpm
12 scfm 3hp
70 gpm 4 ftsec 3 inches
1070 feet
Assumes more than one press cycle per day as reqd Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI recommendation at peak 100 psi discharge (incorporates 2x correction for high viscosity) Assumes 4 cfmhp
Notes
Page 6 of 6
WOODARDlaquoSLCURRANEngineering bull Science bull Operations
CLIENT
PROJECT H^r^i i^d-ftli
41 HUTCHINS DRIVE DESIGNEDESIGNEDD BBYY Lbull ~~T7lSdltU t tvesampt DATE
PORTLAND MAINE 04102 CHECKED BY pW DATE
TEL (207)774-21121 M^ o- gt
PROJECT NO 7S7gt3ampb SHEET NO V
OF
fshy
- proposed ^e-2poundgtgt)euro-TC3 ^ be lop 115 s sliDuon On
5fe amppamp$ TO te ri^iii^ J 7 ) c^r -P-f fc^s for^ off bull- as- ^f- ia^
7deg vSs piCZ^^neKr^ bull Sc-Lamp^un^^ TTb -jn 3^^S 7T- ^70 5
krs ifo pound ins-tailed amp 7^-fif- bcs j o - f - t screen Jshy
lldciys) (DOOlAty cv)li^ = ooo
(3fgtc^ J p
3 feuro 2)
(Hdltu^ (l^Kda^ (6^Vhrj = I 2ZO
aid - ^ooo
VODDAFDampCURRAN MEMORANDUM TO FILE Engineering bull Science bull Operations
bull
M0nri
Project No 2Z2plusmni n 8faMl
PHONE CALL PHONE MO V7V-2 2
PHONE CALL TO H3DD rlt PHONE NO 7^9- 8Z
SUBJECT or Tf
amp 3
OOQ
Clean
7^
Jand-fiil food I bgt
SIGNED
TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
$142000
$851000
$43000 $43000 $85000 $85000
$256000
$1107000
$5000 $40000 $27000
$72000 $7000
$14000
$93000
$509000
$125000
$1^51000
$60000
$129000
$3296000
Feasibility Study 31000
|ii1
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OI copySuuaauiSugj
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CUENrWODQARDampCURRAN deg A gt Engineering bull Science bull Operations PROJECT foa ltib)li X t
41 HUTCHINS DRIVE DESIGNED BY _ 77raquopoundVdraquo lt_ mdash DATE PORTLAND MAINE 04102 CHECKED BY _ ( gtA^A^_ DATE f I Vf TEL (207)774-21 12
of7
casf ^seo oo as^u^pos n Bob SWWUL -fo 6vpy V^ll^roorl an a1 Bill ffeK^u
Umchafe Tlzin4gtl-(jLfe^ Land (l Mo
- M ^ _ miYv 8~-fl- djaKvJLfo- f^^-ol^ v T lOO rrvei4) 0 fiJ iriej bullevamp)oJsJfc ]~skA -oip^ ttA
-3Z oo ~ e e - ~ 2 2 ~in cK V C e (2 30- 35^fe-fshy
Df onireaicd Ofm^du^-tr ltMgtn hblj iAa oJh Lin^ll A^l M a-W -ftos^ ltd 4b J
o-P
cco -^12000 f^ooo ^arrrdi^Pnfwihbl t lofl ooo
of 8and ID d alono
^3yOcxD fc^B^ocso)
CLIENT WOODARDampCUFtfWJ Engineering bull Science bull Operations PROJECT
DESIGNED BY DATE 41 HUTCHINS DRIVE
PORTLAND MAINE 04102 CHECKED BY _ DATE TEL (207)774-2112
2=
A VJWTP
ooo
fSgt of e
TABLE 7-14 COST ESTIMATE ALTERNATIVE SML-5B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
$129000
$6919000
Feasibility Study 31000
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- barcode 6869
- barcodetext SDMS Doc ID 6869
Saco Landfill Ground water Pump amp Treat System
Oxidation tank Oxidation tank residence time Oxidation tank volume Tank diameter Tank height Actual tank volume w freeboard
Lamella inclined plate separator
Surface loading rate
Required surface area
Unit size Number of units Approx height Approx length Approx width
Transfer tank and pumps Transfer tank residence time Transfer tank volume Tank diameter Tank height Actual tank volume w freeboard Pump capacity Pump flow Pump horsepower
Manganese greensand filters
Surface loading rate
Required surface area Required diameter
Unit size provided Diameter provided Number of units
Activated alumina ion exchange Desired pH for act alumina HC1 required to offset NaOH
Conceptual Design Notes
25 min Reaction time of 5 to 30 minutes suggested in AWWA 1800 gallons
6 feet 95 feet Includes 1 ft freeboard
2010 gallons
04 gpmfr 04 to 06 gpmsq ft recommended by Parkson
175ft2
240ft2 Unit sizes of 240480 740 and 1150 sq ft available 1 unit
13 feet Dimensions from Parkson 11 feet 6 feet
Notes 5 min Reasonable time for stable pump control
350 gallons 3 feet
76 feet Includes 1 ft freeboard 400 gallons
70 ft head 30 psi 70 gpm
21 HP
3 gpmft2 3 to 5 gpm per sq ft recommended in AWWA
23 ft2
27ft
28ft2
30ft 2 units Plan to alternate units can also run in series or parallel
Notes 60 units 61 meq
Page 3 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
HC1 required to achieve setpoint 25 meq Total acidity required 86 meq HCI solution strength 9NHC1 addition rate 007 gpmDesired storage time - 30 days HCI storage volume reqd 2900 gallons HCI tank diameter 7 feet HCI tank height 111 feet Actual tank volume w freeboard 3190 gallons
Act alum surface loading rate 1 gpmft2
Required surface area 70ft2
Required diameter 47ft
Unit size provided 79ft2
Diameter provided 50ft EBCT required 50 min Volume to satisfy EBCT 47 cu ft Bed volumes to breakthrough 10000 volumes Desired time to breakthrough 90 days Bed vol reqd for breakthrough 121 cu ft Controlling bed volume 121 cu ft Number of units 2 units
Granular Activated Carbon Carbon vessels required 2 units Flow rate 700 gpm Min vessel diameter 48 inches Mass of carbon in vessel 1700 Ibs Mass of carbon used per day 3 Ibs Life of vessel 15 years
Clearwell and backwash settling tanks Filter backwash rate 175 gpm Backwash cycles per day 2 cycles Backwash duration 10 minutes Settling tank hold time 2 days Settling tank volume required 7000 gallons Settling tank diameter 9 feet Settling tank height 157 feet Actual tank volume w freeboard 7480 gallons
20 deg Be = 30 soln = 92 N 94 gpd
Includes 1 ft freeboard
1 to 5 gpm per sq ft recommended in AWWA
FromAWWAp 615 Regenerate once per quarter Complicated task
Plan to alternate units can also run in series or parallel
Notes Plan to run in series
Based on use rate of 003 lb1000 gal from Calgon
Notes Assume 250 of forward flow rate
Includes 1 ft freeboard
Page 4 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Clearwell volume required Cleanvell tank diameter Clearwell tank height Actual tank volume w freeboard
Sludge storagethickening tank Mass of Fe removed
Mass of Mn removed
Mass of As removed
Misc other metals removed Total metals removed Cone of As in dry sludge Hazardous waste Settled sludge concentration Sludge specific gravity Settled sludge volume Sludge holding between presses Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard
Polymer day tank Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard Polymer dose Polymer use
Sludge press Pressed sludge concentration Sludge specific gravity
Pressed sludge volume Pressed sludge mass
1750 gallons 6 feet
93 feet 1960 gallons
38 Ibday 72 Ibday
23 Ibday
37 Ibday 01 Ibday 02 Ibday 11 Ibday
120 Ibday 980 mgkg Yes
20000 mgL 101 714 galday
7 days maximum
Includes bull=11 ft freeboard
Notes asFe as Fe(OH)3
as Mn includes Mn added with KMnO4
asMnO2
as As as As(OH) assumes 10 of Fe Mn total
Hazardous waste threshhold is 100 mgkg 2
5100 gallons 8 feet
145 feet 5480 gallons
30 gallons 2 feet
23 feet 50 gallons 10 mgL 22 Ibyear
400000 mgL 140
26 galday 300 Ibday
Includes 1 ft freeboard
Notes Polymer diluted in day tank dosed in-line w static mixer
Includes 1 ft freeboard
3 ftVday 45 tonmonth
Page 5 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Required press volume Length Width Height Initial press fill time AOD pump flow rate Compressed air flow rate HP required
Discharge piping Flow rate Desired flow velocity in piping East well line diameter Line length
4ft3
62ft 3 f t 41 ft
5 min 6 gpm
12 scfm 3hp
70 gpm 4 ftsec 3 inches
1070 feet
Assumes more than one press cycle per day as reqd Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI recommendation at peak 100 psi discharge (incorporates 2x correction for high viscosity) Assumes 4 cfmhp
Notes
Page 6 of 6
WOODARDlaquoSLCURRANEngineering bull Science bull Operations
CLIENT
PROJECT H^r^i i^d-ftli
41 HUTCHINS DRIVE DESIGNEDESIGNEDD BBYY Lbull ~~T7lSdltU t tvesampt DATE
PORTLAND MAINE 04102 CHECKED BY pW DATE
TEL (207)774-21121 M^ o- gt
PROJECT NO 7S7gt3ampb SHEET NO V
OF
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VODDAFDampCURRAN MEMORANDUM TO FILE Engineering bull Science bull Operations
bull
M0nri
Project No 2Z2plusmni n 8faMl
PHONE CALL PHONE MO V7V-2 2
PHONE CALL TO H3DD rlt PHONE NO 7^9- 8Z
SUBJECT or Tf
amp 3
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Clean
7^
Jand-fiil food I bgt
SIGNED
TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
$142000
$851000
$43000 $43000 $85000 $85000
$256000
$1107000
$5000 $40000 $27000
$72000 $7000
$14000
$93000
$509000
$125000
$1^51000
$60000
$129000
$3296000
Feasibility Study 31000
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DESIGNED BY DATE 41 HUTCHINS DRIVE
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TABLE 7-14 COST ESTIMATE ALTERNATIVE SML-5B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
$129000
$6919000
Feasibility Study 31000
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|copy60 2S
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1
S la
- barcode 6869
- barcodetext SDMS Doc ID 6869
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
HC1 required to achieve setpoint 25 meq Total acidity required 86 meq HCI solution strength 9NHC1 addition rate 007 gpmDesired storage time - 30 days HCI storage volume reqd 2900 gallons HCI tank diameter 7 feet HCI tank height 111 feet Actual tank volume w freeboard 3190 gallons
Act alum surface loading rate 1 gpmft2
Required surface area 70ft2
Required diameter 47ft
Unit size provided 79ft2
Diameter provided 50ft EBCT required 50 min Volume to satisfy EBCT 47 cu ft Bed volumes to breakthrough 10000 volumes Desired time to breakthrough 90 days Bed vol reqd for breakthrough 121 cu ft Controlling bed volume 121 cu ft Number of units 2 units
Granular Activated Carbon Carbon vessels required 2 units Flow rate 700 gpm Min vessel diameter 48 inches Mass of carbon in vessel 1700 Ibs Mass of carbon used per day 3 Ibs Life of vessel 15 years
Clearwell and backwash settling tanks Filter backwash rate 175 gpm Backwash cycles per day 2 cycles Backwash duration 10 minutes Settling tank hold time 2 days Settling tank volume required 7000 gallons Settling tank diameter 9 feet Settling tank height 157 feet Actual tank volume w freeboard 7480 gallons
20 deg Be = 30 soln = 92 N 94 gpd
Includes 1 ft freeboard
1 to 5 gpm per sq ft recommended in AWWA
FromAWWAp 615 Regenerate once per quarter Complicated task
Plan to alternate units can also run in series or parallel
Notes Plan to run in series
Based on use rate of 003 lb1000 gal from Calgon
Notes Assume 250 of forward flow rate
Includes 1 ft freeboard
Page 4 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Clearwell volume required Cleanvell tank diameter Clearwell tank height Actual tank volume w freeboard
Sludge storagethickening tank Mass of Fe removed
Mass of Mn removed
Mass of As removed
Misc other metals removed Total metals removed Cone of As in dry sludge Hazardous waste Settled sludge concentration Sludge specific gravity Settled sludge volume Sludge holding between presses Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard
Polymer day tank Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard Polymer dose Polymer use
Sludge press Pressed sludge concentration Sludge specific gravity
Pressed sludge volume Pressed sludge mass
1750 gallons 6 feet
93 feet 1960 gallons
38 Ibday 72 Ibday
23 Ibday
37 Ibday 01 Ibday 02 Ibday 11 Ibday
120 Ibday 980 mgkg Yes
20000 mgL 101 714 galday
7 days maximum
Includes bull=11 ft freeboard
Notes asFe as Fe(OH)3
as Mn includes Mn added with KMnO4
asMnO2
as As as As(OH) assumes 10 of Fe Mn total
Hazardous waste threshhold is 100 mgkg 2
5100 gallons 8 feet
145 feet 5480 gallons
30 gallons 2 feet
23 feet 50 gallons 10 mgL 22 Ibyear
400000 mgL 140
26 galday 300 Ibday
Includes 1 ft freeboard
Notes Polymer diluted in day tank dosed in-line w static mixer
Includes 1 ft freeboard
3 ftVday 45 tonmonth
Page 5 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Required press volume Length Width Height Initial press fill time AOD pump flow rate Compressed air flow rate HP required
Discharge piping Flow rate Desired flow velocity in piping East well line diameter Line length
4ft3
62ft 3 f t 41 ft
5 min 6 gpm
12 scfm 3hp
70 gpm 4 ftsec 3 inches
1070 feet
Assumes more than one press cycle per day as reqd Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI recommendation at peak 100 psi discharge (incorporates 2x correction for high viscosity) Assumes 4 cfmhp
Notes
Page 6 of 6
WOODARDlaquoSLCURRANEngineering bull Science bull Operations
CLIENT
PROJECT H^r^i i^d-ftli
41 HUTCHINS DRIVE DESIGNEDESIGNEDD BBYY Lbull ~~T7lSdltU t tvesampt DATE
PORTLAND MAINE 04102 CHECKED BY pW DATE
TEL (207)774-21121 M^ o- gt
PROJECT NO 7S7gt3ampb SHEET NO V
OF
fshy
- proposed ^e-2poundgtgt)euro-TC3 ^ be lop 115 s sliDuon On
5fe amppamp$ TO te ri^iii^ J 7 ) c^r -P-f fc^s for^ off bull- as- ^f- ia^
7deg vSs piCZ^^neKr^ bull Sc-Lamp^un^^ TTb -jn 3^^S 7T- ^70 5
krs ifo pound ins-tailed amp 7^-fif- bcs j o - f - t screen Jshy
lldciys) (DOOlAty cv)li^ = ooo
(3fgtc^ J p
3 feuro 2)
(Hdltu^ (l^Kda^ (6^Vhrj = I 2ZO
aid - ^ooo
VODDAFDampCURRAN MEMORANDUM TO FILE Engineering bull Science bull Operations
bull
M0nri
Project No 2Z2plusmni n 8faMl
PHONE CALL PHONE MO V7V-2 2
PHONE CALL TO H3DD rlt PHONE NO 7^9- 8Z
SUBJECT or Tf
amp 3
OOQ
Clean
7^
Jand-fiil food I bgt
SIGNED
TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
$142000
$851000
$43000 $43000 $85000 $85000
$256000
$1107000
$5000 $40000 $27000
$72000 $7000
$14000
$93000
$509000
$125000
$1^51000
$60000
$129000
$3296000
Feasibility Study 31000
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CUENrWODQARDampCURRAN deg A gt Engineering bull Science bull Operations PROJECT foa ltib)li X t
41 HUTCHINS DRIVE DESIGNED BY _ 77raquopoundVdraquo lt_ mdash DATE PORTLAND MAINE 04102 CHECKED BY _ ( gtA^A^_ DATE f I Vf TEL (207)774-21 12
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CLIENT WOODARDampCUFtfWJ Engineering bull Science bull Operations PROJECT
DESIGNED BY DATE 41 HUTCHINS DRIVE
PORTLAND MAINE 04102 CHECKED BY _ DATE TEL (207)774-2112
2=
A VJWTP
ooo
fSgt of e
TABLE 7-14 COST ESTIMATE ALTERNATIVE SML-5B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
$129000
$6919000
Feasibility Study 31000
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|20 Contingency on Annual OampM
|copy60 2S
C5 u
1
S la
- barcode 6869
- barcodetext SDMS Doc ID 6869
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Clearwell volume required Cleanvell tank diameter Clearwell tank height Actual tank volume w freeboard
Sludge storagethickening tank Mass of Fe removed
Mass of Mn removed
Mass of As removed
Misc other metals removed Total metals removed Cone of As in dry sludge Hazardous waste Settled sludge concentration Sludge specific gravity Settled sludge volume Sludge holding between presses Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard
Polymer day tank Necessary tank volume Tank diameter Tank height Actual tank volume w freeboard Polymer dose Polymer use
Sludge press Pressed sludge concentration Sludge specific gravity
Pressed sludge volume Pressed sludge mass
1750 gallons 6 feet
93 feet 1960 gallons
38 Ibday 72 Ibday
23 Ibday
37 Ibday 01 Ibday 02 Ibday 11 Ibday
120 Ibday 980 mgkg Yes
20000 mgL 101 714 galday
7 days maximum
Includes bull=11 ft freeboard
Notes asFe as Fe(OH)3
as Mn includes Mn added with KMnO4
asMnO2
as As as As(OH) assumes 10 of Fe Mn total
Hazardous waste threshhold is 100 mgkg 2
5100 gallons 8 feet
145 feet 5480 gallons
30 gallons 2 feet
23 feet 50 gallons 10 mgL 22 Ibyear
400000 mgL 140
26 galday 300 Ibday
Includes 1 ft freeboard
Notes Polymer diluted in day tank dosed in-line w static mixer
Includes 1 ft freeboard
3 ftVday 45 tonmonth
Page 5 of 6
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Required press volume Length Width Height Initial press fill time AOD pump flow rate Compressed air flow rate HP required
Discharge piping Flow rate Desired flow velocity in piping East well line diameter Line length
4ft3
62ft 3 f t 41 ft
5 min 6 gpm
12 scfm 3hp
70 gpm 4 ftsec 3 inches
1070 feet
Assumes more than one press cycle per day as reqd Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI recommendation at peak 100 psi discharge (incorporates 2x correction for high viscosity) Assumes 4 cfmhp
Notes
Page 6 of 6
WOODARDlaquoSLCURRANEngineering bull Science bull Operations
CLIENT
PROJECT H^r^i i^d-ftli
41 HUTCHINS DRIVE DESIGNEDESIGNEDD BBYY Lbull ~~T7lSdltU t tvesampt DATE
PORTLAND MAINE 04102 CHECKED BY pW DATE
TEL (207)774-21121 M^ o- gt
PROJECT NO 7S7gt3ampb SHEET NO V
OF
fshy
- proposed ^e-2poundgtgt)euro-TC3 ^ be lop 115 s sliDuon On
5fe amppamp$ TO te ri^iii^ J 7 ) c^r -P-f fc^s for^ off bull- as- ^f- ia^
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(Hdltu^ (l^Kda^ (6^Vhrj = I 2ZO
aid - ^ooo
VODDAFDampCURRAN MEMORANDUM TO FILE Engineering bull Science bull Operations
bull
M0nri
Project No 2Z2plusmni n 8faMl
PHONE CALL PHONE MO V7V-2 2
PHONE CALL TO H3DD rlt PHONE NO 7^9- 8Z
SUBJECT or Tf
amp 3
OOQ
Clean
7^
Jand-fiil food I bgt
SIGNED
TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
$142000
$851000
$43000 $43000 $85000 $85000
$256000
$1107000
$5000 $40000 $27000
$72000 $7000
$14000
$93000
$509000
$125000
$1^51000
$60000
$129000
$3296000
Feasibility Study 31000
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CUENrWODQARDampCURRAN deg A gt Engineering bull Science bull Operations PROJECT foa ltib)li X t
41 HUTCHINS DRIVE DESIGNED BY _ 77raquopoundVdraquo lt_ mdash DATE PORTLAND MAINE 04102 CHECKED BY _ ( gtA^A^_ DATE f I Vf TEL (207)774-21 12
of7
casf ^seo oo as^u^pos n Bob SWWUL -fo 6vpy V^ll^roorl an a1 Bill ffeK^u
Umchafe Tlzin4gtl-(jLfe^ Land (l Mo
- M ^ _ miYv 8~-fl- djaKvJLfo- f^^-ol^ v T lOO rrvei4) 0 fiJ iriej bullevamp)oJsJfc ]~skA -oip^ ttA
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CLIENT WOODARDampCUFtfWJ Engineering bull Science bull Operations PROJECT
DESIGNED BY DATE 41 HUTCHINS DRIVE
PORTLAND MAINE 04102 CHECKED BY _ DATE TEL (207)774-2112
2=
A VJWTP
ooo
fSgt of e
TABLE 7-14 COST ESTIMATE ALTERNATIVE SML-5B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
$129000
$6919000
Feasibility Study 31000
22
CD
CO
gt 0)
oo
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|
c u3ea
1
(DESCRIPTION
rr rj M(0
bullo
|20 Contingency on Annual OampM
|copy60 2S
C5 u
1
S la
- barcode 6869
- barcodetext SDMS Doc ID 6869
Saco Landfill Groundwater Pump amp Treat System Conceptual Design
Required press volume Length Width Height Initial press fill time AOD pump flow rate Compressed air flow rate HP required
Discharge piping Flow rate Desired flow velocity in piping East well line diameter Line length
4ft3
62ft 3 f t 41 ft
5 min 6 gpm
12 scfm 3hp
70 gpm 4 ftsec 3 inches
1070 feet
Assumes more than one press cycle per day as reqd Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI catalog cuts Based on JWI recommendation at peak 100 psi discharge (incorporates 2x correction for high viscosity) Assumes 4 cfmhp
Notes
Page 6 of 6
WOODARDlaquoSLCURRANEngineering bull Science bull Operations
CLIENT
PROJECT H^r^i i^d-ftli
41 HUTCHINS DRIVE DESIGNEDESIGNEDD BBYY Lbull ~~T7lSdltU t tvesampt DATE
PORTLAND MAINE 04102 CHECKED BY pW DATE
TEL (207)774-21121 M^ o- gt
PROJECT NO 7S7gt3ampb SHEET NO V
OF
fshy
- proposed ^e-2poundgtgt)euro-TC3 ^ be lop 115 s sliDuon On
5fe amppamp$ TO te ri^iii^ J 7 ) c^r -P-f fc^s for^ off bull- as- ^f- ia^
7deg vSs piCZ^^neKr^ bull Sc-Lamp^un^^ TTb -jn 3^^S 7T- ^70 5
krs ifo pound ins-tailed amp 7^-fif- bcs j o - f - t screen Jshy
lldciys) (DOOlAty cv)li^ = ooo
(3fgtc^ J p
3 feuro 2)
(Hdltu^ (l^Kda^ (6^Vhrj = I 2ZO
aid - ^ooo
VODDAFDampCURRAN MEMORANDUM TO FILE Engineering bull Science bull Operations
bull
M0nri
Project No 2Z2plusmni n 8faMl
PHONE CALL PHONE MO V7V-2 2
PHONE CALL TO H3DD rlt PHONE NO 7^9- 8Z
SUBJECT or Tf
amp 3
OOQ
Clean
7^
Jand-fiil food I bgt
SIGNED
TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
$142000
$851000
$43000 $43000 $85000 $85000
$256000
$1107000
$5000 $40000 $27000
$72000 $7000
$14000
$93000
$509000
$125000
$1^51000
$60000
$129000
$3296000
Feasibility Study 31000
|ii1
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SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
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TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
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TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
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SUBTOTAL
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TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
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WOODARD CURRAN (9509306)
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SACO MAINE
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SUBTOTAL
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SUBTOTAL Engineering 10 20 Contingency on Annual OampM
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TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
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VODDAFDampCURRAN MEMORANDUM TO FILE Engineering bull Science bull Operations
bull
M0nri
Project No 2Z2plusmni n 8faMl
PHONE CALL PHONE MO V7V-2 2
PHONE CALL TO H3DD rlt PHONE NO 7^9- 8Z
SUBJECT or Tf
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SIGNED
TABLE 7-13 COST ESTIMATE ALTERNATIVE SML-5A
(DISCHARGE TO SACO WWTP)
FEASIBILITY STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Discharge to Saco WWTP (1) Installation of Groundwater Extraction Discharge System
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
SUBTOTAL Engineeringreg 10 20 Contingency on Annual OampM
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(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
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$256000
$1107000
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TABLE 7-14 COST ESTIMATE ALTERNATIVE SML-5B
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FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
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Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
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TOTAL DIRECT COSTS
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TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
$197000 $20000 $39000
$256000
$3177000
$125000
$1551000
$60000
$129000
$6919000
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SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Monitoring 2 Extraction Wells (Quarterly) Monitoring GroundwaterSurface Water and Sediment (Annually) (2) Maintenance (Annual)
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TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5A
(1) Costs for upgrades to pump station on Route 1 12 not included
WOODARD CURRAN (9509306)
$92000 $453000 $164000
$709000
$142000
$851000
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$256000
$1107000
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$72000 $7000
$14000
$93000
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$129000
$3296000
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FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
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TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
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TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
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TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
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$264000
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(TREATMENTON-SITE DISCHARGE)
FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
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TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
$197000 $20000 $39000
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DESIGNED BY DATE 41 HUTCHINS DRIVE
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TABLE 7-14 COST ESTIMATE ALTERNATIVE SML-5B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
$197000 $20000 $39000
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$129000
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TABLE 7-14 COST ESTIMATE ALTERNATIVE SML-5B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
Groundwater Extraction System Treatability Study for Groundwater Treatment System Groundwater Treatment System Treated Groundwater Discharge System Installation of Groundwater Extraction Treatment Discharge Systems
SUBTOTAL
20 Contingency on Direct Costs
TOTAL DIRECT COSTS
INDIRECT COSTS Health and Safety 5 Legal Administrative and Permitting 5 Engineering Design 10 Services during Construction 10
TOTAL INDIRECT COSTS
TOTAL CAPITAL COSTS (DIRECT AND INDIRECT)
ANNUAL OPERATION AND MAINTENANCE COSTS Treatment System (Labor Power Chemicals Maintenance etc) Monitoring 2 Extraction Wells (Quarterly) Treatment System Monitoring (Monthly) Treatment Sludge Disposal
SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
Five Year Site Reviews (includes 20 Contingency)
TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
$92000 $100000 $443000 $11000
$676000
$1322000
$264000
$1586000
$79000 $79000
$159000 $159000
$476000
$2062000
$166000 $5000
$12000 $14000
$197000 $20000 $39000
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$125000
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TABLE 7-14 COST ESTIMATE ALTERNATIVE SML-5B
(TREATMENTON-SITE DISCHARGE)
FEASIBILITV STUDY REPORT SACO MUNICIPAL LANDFILL
SACO MAINE
DIRECT COSTS
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SUBTOTAL
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TOTAL DIRECT COSTS
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SUBTOTAL Engineering 10 20 Contingency on Annual OampM
TOTAL OampM COSTS
TOTAL PRESENT WORTH ANNUAL OampM COSTS (7 30 YEARS)
Monitoring GroundwaterSurface Water and Sediment (annually) (includes 20 Contingency)
TOTAL PRESENT WORTH ANNUAL ENVIRONMENTAL MONITORING COSTS (7 30 YEARS)
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TOTAL PRESENT WORTH OF FIVE YEAR SITE REVIEWS (7 30 YEARS)
TOTAL PRESENT WORTH (30 YEARS) - ALTERNATIVE SML-5B
WOODARD CURRAN (9509306)
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