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LID/LID/ESDESD MaintenanceMaintenance
M O N T G O M E R Y C O U N T Y M DM O N T G O M E R Y C O U N T Y , M DD E P A R T M E N T O F E N V I R O N M E N T A L
P R O T E C T I O N
AMY STEVENSCHRISTY CIARAMETAROCHRISTY CIARAMETARO
JANUARY 23, 2013,LANDSCAPE PROFESSIONALS TRAINING
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St t F ilitSt t F ilitStormwater FacilityStormwater FacilityInspection & MaintenanceInspection & Maintenance
PROGRAM DESCRIPTION
pp
• PROGRAM DESCRIPTION• KEY MAINTENANCE ELEMENTS
• plant practices• plant practices• non-plant practices
• CONTRACTOR OPPORTUNITIES
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INSPECTION AND MAINTENANCE INSPECTION AND MAINTENANCE PROGRAMPROGRAM
• Over 6000 Total BMPs• Over 6000 Total BMPs• Over 2,600 Ponds, Sand Filter, Infiltration
TrenchTrench• Over 2,500 underground practices
(hydrodynamic, UG storage, UG filters)( y y , g , )• Over 1,500 LID/ESD (bioretention, dry wells)
• Water Quality Protection Charge funds program
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MAINTENANCE RESPONSIBILITYMAINTENANCE RESPONSIBILITYMAINTENANCE RESPONSIBILITYMAINTENANCE RESPONSIBILITY
• Primarily property ownery p p y• 2003 started shared maintenance program for
residential property owners– County perform structural maintenance– Residential property owner responsible for non-
structuralstructural– Mostly for ponds and underground facilities
• Easements • Maintenance Agreements
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MAINTENANCE MAINTENANCE -- GENERALGENERAL
• Approx. 2,000 BMPsmaintained in 2011maintained in 2011
• Recommend monthly trash removal for
b d f ilitiaboveground facilities• Twice a mowing and
vegetation removal for gponds
• UG cleaned frequently V t t d LID f iliti • Vegetated LID facilities should be maintained quarterly
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INSPECTION PROCEDURE CONT’DINSPECTION PROCEDURE CONT’DINSPECTION PROCEDURE CONT DINSPECTION PROCEDURE CONT D
• Confined Space and Safetyp y• Developed inspection checklist for each type BMP• Always supplement checklist with photos• Keep checklist to one page• Mobile ready
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FACILITY DATAFACILITY DATA
County maintains a database of all stormwater facilities, inspection reports, inspection photos, plans Plans
and asbuilts, etc.FacilityData
Photos
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WORK ORDERWORK ORDERWORK ORDERWORK ORDER
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INSPECTION PROCEDURESINSPECTION PROCEDURESINSPECTION PROCEDURESINSPECTION PROCEDURES
• All inspections done by County contractorAll inspections done by County contractor• Inspect each BMP at least every three years• Divided County into 3 areasDivided County into 3 areas• Over 1,500 inspections/year
• ESD ill lik l d f t • ESD – will likely need more frequent inspections/monitoring – combined effort by County and property ownerCounty and property owner
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NOTIFICATION PROCEDURESNOTIFICATION PROCEDURES
• The owner receives a maintenance e-mail and the repair report/work order
• The repairs must be completed within 60 days.y
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CONTRACTOR REQUIREMENTSCONTRACTOR REQUIREMENTSCONTRACTOR REQUIREMENTSCONTRACTOR REQUIREMENTS
• A company that performs repair or maintenance on a p y p pstormwater management facility must:– Attend a training program approved by DEP
• Check DEP website for trained Contractor LIST: www montgomerycountymd gov/stormwaterwww.montgomerycountymd.gov/stormwater– Click “Contractor Resources”
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CONTRACTORCONTRACTOR REQUIREMENTSREQUIREMENTSCONTRACTORCONTRACTOR REQUIREMENTSREQUIREMENTS• Follow Montgomery County Noise Control Ordinance
C ll M S M i 240 777 7746 f i – Call Mr. Steve Martin at 240-777-7746 for permit information
• SAFETY:SAFETY:– Follow Montgomery County and/or Maryland State
Highway Administration Work Zone Traffic Control S d dStandards
• Call 240-777-2190 for permit information– Structural Work:
• Maintain Confined Space Certification, http://www.osha.gov
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LID/ESD IN MONTGOMERY LID/ESD IN MONTGOMERY COUNTYCOUNTY
1 532 ESD/LID Practices = 1,532 ESD/LID Practices = 24% of Stormwater Practices
….and growing
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PERMITTEDPERMITTED & & RAINSCAPESRAINSCAPESLID/ESD IN MONTGOMERY COUNTYLID/ESD IN MONTGOMERY COUNTYLID/ESD IN MONTGOMERY COUNTYLID/ESD IN MONTGOMERY COUNTY
Practice Type Permitted RainScapes Projects
D W ll / Mi I fil i1,204 6
Dry Wells / Micro-Infiltration,
Bioretention / Microbioretention 207 2
Bio ale / D ale 42 2Bioswale / Dry swale 42 2
Rain garden 26 82
P P t 24 15Porous Pavement 24 15
Tree Box 19 0
G f 5 2Greenroofs 5 2
Rain Barrel 5 148
C T 0 127 *As of 1/15/2013; Updated Every Two Weeks
Canopy Trees 0 127 Pavement Removal 0 6Conservation Landscape 0 72
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LID Sit LID Site
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MaintenanceMaintenanceS ll OS ll O S S Small OnSmall On--Lot Stormwater Lot Stormwater
PracticesPractices
VEGETATED PRACTICESVEGETATED PRACTICES
BIORETENTION, TREE BOX GREEN GRASS ,RAIN GARDEN,
BIOSWALE
TREE BOXROOF
GRASS SWALE
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ARE THEY DIFFERENTARE THEY DIFFERENT??Sligo Creek Recreation Center
BioretentionDrainage Drainage
AAStructural Structural
C tC t
Micro-Bioretention AreaArea ComponentsComponents
Landscape Infiltration
Rain GardenINCREASING
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DEPARTMENT OF DEPARTMENT OF PERMITTING SERVICESPERMITTING SERVICESPERMITTING SERVICESPERMITTING SERVICESSTANDARD DETAILSTANDARD DETAIL
Vegetative Cover: Mature 85% No Trees in Center
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MOST COMMON MOST COMMON MAINTENANCEMAINTENANCE• Removed weeds Removed weeds • Remove sediment• Repaired erosion, install riprap • ReplantReplant• Mulch to 3”
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ESD/LID MAINTENANCE ESD/LID MAINTENANCE ELEMENTSELEMENTS--PLANTED PRACTICESPLANTED PRACTICESPLANTED PRACTICESPLANTED PRACTICES
MOWING WEEDING EDGING
PLANTS PRUNING REPLANTING EDGING
LEAF REMOVAL SEDIMENT REMOVAL
REPLANTING WATERING DIVIDING SEDIMENT REMOVAL
MULCHINGDIVIDING
PERENNIALS
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MAINTENANCE MAINTENANCE RECOMMENDATIONSRECOMMENDATIONS• Seasonal/Monthly Maintenance for Seasonal/Monthly Maintenance for
bioretention
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Mowing
ADJUST MOWER BLADE HEIGHT TO ADJUST MOWER BLADE HEIGHT TO AVOID SCALPINGAVOID SCALPING
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MowingMowing
NO GRASS CLIPPINGSNO GRASS CLIPPINGS
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WeedingNO PESTICIDE/NO PESTICIDE/
WeedingNO PESTICIDE/NO PESTICIDE/HERBICIDEHERBICIDE
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MONTGOMERY COUNTY MONTGOMERY COUNTY WEEDSWEEDS
• WeedingWeeding– Keeping up with it as it goes will reduce
the overall effort requiredthe overall effort required– More dense planting will reduce
blproblem– Careful selection of mulch source
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Rapid, dynamic systems – Maintenance ti i MATTERStiming MATTERS
SligoSligo RecRec center Rain Garden center Rain Garden S goS go ecec ce te a Ga dece te a Ga deJan, April, May Jan, April, May
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EdgingEdging
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LEAF REMOVALLEAF REMOVALLEAF REMOVALLEAF REMOVAL
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LEAF REMOVALLEAF REMOVALLEAF REMOVALLEAF REMOVAL Check and remove
trash organic trash, organic debris and sediment from cell
Remove leaves from cellfrom cell
Do not dump leaves i llinto cell
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SEDIMENT DEBRIS REMOVALSEDIMENT DEBRIS REMOVALSEDIMENT, DEBRIS REMOVALSEDIMENT, DEBRIS REMOVAL
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KEEP FLOW PATHS CLEARKEEP FLOW PATHS CLEARKEEP FLOW PATHS CLEARKEEP FLOW PATHS CLEAR
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Source: Clean Water S i
Source: Clean Water Services
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MULCH MULCH MULCH MULCH
• Replenishment to 3”p– Shredded pine or hardwood mulch
• Complete Replacement every 3-5yrs• Raking – evenly disperse
– Check after large storms
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PLANTS PLANTS -- PRUNINGPRUNINGPLANTS PLANTS PRUNINGPRUNING
• Prune/cut back plants and remove cut material pfrom the cell by April
• SWITCH GRASSES – Prune Mid-March, not b l 6 i hbelow 6 inches
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PLANTS PLANTS -- WATERINGWATERINGPLANTS PLANTS WATERINGWATERING
• Water until established
• weekly May Sept if it hasn’t rained• weekly May – Sept if it hasn t rained• water the equivalent of one inch of rain
• After established, only water if no rain > 10 days
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PLANTS PLANTS -- REPLANTINGREPLANTINGPLANTS PLANTS REPLANTINGREPLANTING
- Need access path through- Natives- Natives- Deer resistant- Flood tolerant
D ht t l t- Drought tolerant- Salt tolerant
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PLANTS PLANTS –– DIVIDE PERENNIALSDIVIDE PERENNIALSPLANTS PLANTS DIVIDE PERENNIALSDIVIDE PERENNIALS
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PREVENT DAMAGE PREVENT DAMAGE ––DON’T PLOW SNOW INTODON’T PLOW SNOW INTODON’T PLOW SNOW INTODON’T PLOW SNOW INTO
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MaintenanceMaintenanceS ll OS ll O S S Small OnSmall On--Lot Stormwater Lot Stormwater
PracticesPractices
NON PLANT BASED PRACTICESNON-PLANT BASED PRACTICES
PERMEABLE PAVEMENT
DRY WELLS RAIN BARREL
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Permeable Pavement MaintenancePermeable Pavement Maintenance
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PERMEABLE PAVEMENT PERMEABLE PAVEMENT PERMEABLE PAVEMENT PERMEABLE PAVEMENT MAINTENANCEMAINTENANCE
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NEW WHITE OAK NEW WHITE OAK RECREC CENTERCENTER
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Permeable Pavement M i tMaintenance
Source: NCSU Cooperative Extension
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Permeable Pavement M i tMaintenance
•Do not seal or repave with non porous materialsp
• No Winter Sand
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D W ll/MiD W ll/Mi I filt ti I filt ti Dry Well/MicroDry Well/Micro--Infiltration Infiltration MaintenanceMaintenance
TYPICALLY • TYPICALLY LOCATED 20 FT
FROM HOUSE
• SURFACE RUNOFFVS. DIRECT
DOWNSPOUT CONNECTION
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DRYWELL MAINTENANCEDRYWELL MAINTENANCEDRYWELL MAINTENANCEDRYWELL MAINTENANCE
M i Pi • Maintenance: Pipes, gutters, downspouts cleaned
Soil
Gravel
Sand
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Drywell Maintenancey
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Rain Barrel MaintenanceRain Barrel Maintenance
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RAIN BARREL MAINTENANCERAIN BARREL MAINTENANCERAIN BARREL MAINTENANCERAIN BARREL MAINTENANCE
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VIDEOVIDEOVIDEOVIDEO
• http://www.youtube.com/watch?feature=player embedp y p y _ded&v=coFbdMB-q0U
• <iframe width="640" height="360" src="http://www.youtube.com/embed/coFbdMB-q0U?feature=player embedded" frameborder="0" q0U?feature player_embedded frameborder 0 allowfullscreen></iframe>
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VIDEOVIDEOVIDEOVIDEO
•
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Tree Box MaintenanceTree Box Maintenance
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TREE BOX MAINTENANCETREE BOX MAINTENANCE
• Remove trash, organic debris f i l h d i hi h from inlet throat and within the box
• Weed & Prune as necessary
• Water trees as necessary (> 4 Water trees as necessary ( 4 weeks without rain)
• Leaves can collect in the throat Leaves can collect in the throat and usually buildup in November
• * Filterra mulch 2 times/yr• * Filterra – mulch 2 times/yr
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Green Roof MaintenanceGreen Roof Maintenance
North Bethesda Center, 17,500sqft, Photo: Hydrotech
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GREEN ROOF MAINTENANCEGREEN ROOF MAINTENANCEGREEN ROOF MAINTENANCEGREEN ROOF MAINTENANCE
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LESSONS LEARNED LESSONS LEARNED ––HELPFUL TIPSHELPFUL TIPS
–Know Predominant Weeds on-siteKnow Predominant Weeds on site– Obtain Design Plan
D f ili h bi id– Do not use fertilizer or herbicide
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THINGS TO LOOK FOR:THINGS TO LOOK FOR:THINGS TO LOOK FOR:THINGS TO LOOK FOR:
Water Drains within 2 – 3 days• Water enters facility Inlet or flow Water enters facility – Inlet or flow
path not blocked
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WATER QUALITY PROTECTION WATER QUALITY PROTECTION CHARGE (WQPC) CREDITCHARGE (WQPC) CREDIT• Future Contractor Opportunity!pp y
• Proposed Reduced Fee for maintained practices:– Max 50% for traditional structural bmps– Max 60% for ESD/LID on Nonresidential or
M ltif ilMultifamily– Max 50% for ESD/LID on Single Family
Residential
• Bill 34-12 At County Council now….stay tuned
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INTERESTED IN CONTRACTOR INTERESTED IN CONTRACTOR RECOGNITION? RECOGNITION? • New: Green business certification • New: Green business certification
• Considering AWARDS: Best Maintained private bioretention, rain garden, or bioswale
• Consider VOLUNTEERING? Contractors that adopt-a-rain garden and volunteer to maintain a public rain garden at a Green Street, library, etc.
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Questions?Questions?
AMY STEVENSAMY [email protected]
CHRISTY CIARAMETAROCLC@MONTGOMERYCOUNTYMD GOVCLC@MONTGOMERYCOUNTYMD .GOV
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MAINTENANCE RESOURCESMAINTENANCE RESOURCESMAINTENANCE RESOURCESMAINTENANCE RESOURCES• MC Stormwater Facility Maintenance:
http://www.montgomerycountymd.gov/stormwater• NEW DEP Maintenance Landscape Architect
BMP M i E l Q l• BMP Maintenance E-newsletters - Quarterly
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MAINTENANCE CONTRACTOR LISTSMAINTENANCE CONTRACTOR LISTSMAINTENANCE CONTRACTOR LISTSMAINTENANCE CONTRACTOR LISTS
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STORMWATER FACILITY STORMWATER FACILITY MAPSMAPSSTORMWATER FACILITY STORMWATER FACILITY MAPSMAPS
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22--PG MAINTENANCE FACT SHEETSPG MAINTENANCE FACT SHEETS
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ASK ASK DEPDEP FOR EXISTING PLANS / FOR EXISTING PLANS / DESIGNSDESIGNSDESIGNSDESIGNS
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OTHER MAINTENANCE OUTREACHOTHER MAINTENANCE OUTREACH
• Property Management Company Company communications
I di id l d di • Individual and direct communication to property owner when
i / i i maintenance/repair is needed
• 4 Inspectors directly work with property ownersowners
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SCHEDULED CONTRACTOR TRAINING SCHEDULED CONTRACTOR TRAINING SESSIONSSESSIONSSESSIONSSESSIONS
Th d M h • RainScapes • Thursday, March 7, 2013Montgomery County
• RainScapes Spring training for Professionals will Montgomery County
Executive Office Building, Lobby A dit i
be announced via the RainScapes Gazette for Auditorium,
101 Monroe StreetRockville, MD. 20850.
Gazette for Landscape Professionals ,