nps 2007 rsmp final

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1515thth National Nonpoint Source Monitoring WorkshopNational Nonpoint Source Monitoring WorkshopAustin, TexasAustin, Texas

Initial Results from the North Central Texas Initial Results from the North Central Texas Council of Governments Regional Storm Council of Governments Regional Storm

Water Quality Monitoring ProgramWater Quality Monitoring Program

August 27, 2007August 27, 2007

Presented by:Presented by:NCTCOG NCTCOG PBS&JPBS&JKeith KennedyKeith Kennedy Jason C. Maldonado, CFMJason C. Maldonado, CFM616 Six Flags Drive, Centerpoint Two616 Six Flags Drive, Centerpoint Two 1250 Wood Branch Park Dr1250 Wood Branch Park DrArlington, Texas 76005Arlington, Texas 76005 Houston, Texas 77079Houston, Texas 77079

AcknowledgementsAcknowledgements

•• Mary Tatum, NCTCOGMary Tatum, NCTCOG•• Krystal Zwinggi, NCTCOGKrystal Zwinggi, NCTCOG

•• Overview of Regional Storm Water Monitoring Overview of Regional Storm Water Monitoring ProgramProgram

•• Regional Monitoring ProtocolRegional Monitoring Protocol•• ScheduleSchedule•• Equipment and ConstituentsEquipment and Constituents•• Water Chemistry ResultsWater Chemistry Results•• Decisions from ResultsDecisions from Results•• Future MonitoringFuture Monitoring•• SummarySummary

AgendaAgenda ParticipantsParticipants

•• DallasDallas•• ArlingtonArlington•• IrvingIrving•• MesquiteMesquite•• TxDOT TxDOT –– Dallas Dallas

District (FW District is District (FW District is coco--permittee)permittee)

•• Fort WorthFort Worth•• GarlandGarland•• PlanoPlano•• North Texas Tollway North Texas Tollway

Authority (NTTA)Authority (NTTA)

BackgroundBackground

•• Coordinated through the North Central Coordinated through the North Central Texas Council of Governments (NCTCOG) Texas Council of Governments (NCTCOG) to assist with storm water quality to assist with storm water quality monitoringmonitoring

•• Regional plan approved by TCEQRegional plan approved by TCEQ•• Sampling of various watersheds per year Sampling of various watersheds per year

for 3 yearsfor 3 years

BackgroundBackground

•• Establish baseline data on receiving Establish baseline data on receiving streams in the DFW Metroplex to later…streams in the DFW Metroplex to later…

•• Determine longDetermine long--term water quality trends;term water quality trends;

•• Assess the impact of storm water Assess the impact of storm water discharge on receiving stream quality; and discharge on receiving stream quality; and

•• Define MS4 BMP design criteria, and Define MS4 BMP design criteria, and possibly evaluate BMP effectiveness.possibly evaluate BMP effectiveness.

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Storm Water MonitoringStorm Water Monitoring

Regional Monitoring ProtocolRegional Monitoring Protocol

•• 9 watersheds per year 9 watersheds per year •• 3 sampling stations in 7 watersheds; 2 3 sampling stations in 7 watersheds; 2

sampling stations in the 2 sampling stations in the 2 transportation watersheds transportation watersheds

•• 1 sample per quarter/per site 1 sample per quarter/per site

Monitoring ScheduleMonitoring Schedule

•• MonitoringMonitoring periods will be quarterly for each of periods will be quarterly for each of the three years:the three years:–– January 1 January 1 –– March 31, 2007March 31, 2007–– April 1 April 1 –– June 30, 2007June 30, 2007–– July 1 July 1 –– September 30, 2007September 30, 2007–– October 1 October 1 –– December 31, 2007December 31, 2007

•• 3 chemical monitoring years per permit term3 chemical monitoring years per permit term•• 27 watersheds evaluated over the permit term27 watersheds evaluated over the permit term

Qualifying Rain EventsQualifying Rain Events

•• Minimum antecedent dry period of 72Minimum antecedent dry period of 72--hours;hours;

•• Rain event greater than 0.1 inches; andRain event greater than 0.1 inches; and•• Stream level must have a 1Stream level must have a 1--inch rise inch rise

within one hourwithin one hour

Modifications to Regional PlanModifications to Regional Plan

•• City of DallasCity of Dallas–– Elected to monitor two additional sites in 2007 Elected to monitor two additional sites in 2007

due to the complexity of their watersheddue to the complexity of their watershed

•• City of Fort WorthCity of Fort Worth–– Two bioTwo bio--assessment samples per year at all assessment samples per year at all

nine sitesnine sites–– Four years of bioFour years of bio--assessment samplesassessment samples–– One chemical sample per site per yearOne chemical sample per site per year

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Monitoring Software and Monitoring Software and EquipmentEquipment

Monitoring Software and Monitoring Software and EquipmentEquipment

•• Shelters Shelters –– PrefabricatedPrefabricated•• Automatic Samplers (Portable 6712)Automatic Samplers (Portable 6712)•• Cell Phones (ISCO Digital Cellular System)Cell Phones (ISCO Digital Cellular System)•• Bubbler (ISCO 730 Bubbler Flow Module)Bubbler (ISCO 730 Bubbler Flow Module)•• Rain Gauge (ISCO 674 Rain Gauge)Rain Gauge (ISCO 674 Rain Gauge)•• Computer Software (ISCO Flowlink 5)Computer Software (ISCO Flowlink 5)

SheltersShelters Automatic SamplerAutomatic Sampler

Bubbler ModuleBubbler Module Rain GaugeRain Gauge

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Flowlink Flowlink –– Data StorageData Storage

FLOWLINK softwareFLOWLINK software–– MS Access Based MS Access Based –– Proprietary software by ISCO, IncProprietary software by ISCO, Inc–– Reports rainfall, water level, and sample Reports rainfall, water level, and sample

collectioncollection

ISCO FlowlinkISCO Flowlink

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

2:00 4:00 6:00 8:00 10:00

Time

Flo

w (c

fs)

0

0.05

0.1

0.15

0.2

0.25

0.3

Rain

fall (in)

Rainfall (0.62 in Total)Flow (18,000 cf Total)Aliquots

Constituents MonitoredConstituents Monitored

•• E. coliE. coli•• Total ColiformTotal Coliform•• Oil and GreaseOil and Grease•• pHpH•• BODBOD•• CODCOD•• TSSTSS•• TDSTDS•• CadmiumCadmium

•• CopperCopper•• LeadLead•• ZincZinc•• Dissolved PhosphorusDissolved Phosphorus•• Total PhosphorusTotal Phosphorus•• Total NitrogenTotal Nitrogen•• ChromiumChromium•• ArsenicArsenic•• DiazinonDiazinon

Initial ResultsInitial Results

•• 2 quarters of monitoring completed2 quarters of monitoring completed•• 8 watersheds sampled8 watersheds sampled•• Rain events varied in intensity, however Rain events varied in intensity, however

the majority of rain events have been the majority of rain events have been moderate to heavy (greater than 0.5 moderate to heavy (greater than 0.5 inches)inches)

Bacteria Bacteria –– E. coli and Total ColiformE. coli and Total Coliform

DallasTxDOTPlanoNTTAMesquiteIrvingGarlandArlington

MDL

0

1

10

100

1000

10000

100000

1000000

co

lon

ies/1

00 m

L

Total Coliform Station 1





E. coli Station 1

E. coli Station 2

E. coli Station 3

E. coli Station 4

E. coli Station 5

Oil and GreaseOil and Grease


MDL

0.00

2.00

4.00

6.00

8.00

10.00

12.00

14.00

16.00

18.00

mg

/L

Oil and GreaseStation 1Oil and GreaseStation 2Oil and GreaseStation 3Oil and GreaseStation 4Oil and GreaseStation 5

5

Solids Solids –– TSS and TDSTSS and TDS

Arlington Garland Irving Mesquite NTTA Plano TxDOT DallasMDL0

100

200

300

400

500

600

700

800

900

mg

/L

TDS Station 1TDS Station 2

TDS Station 3TDS Station 4

TDS Station 5TSS Station 1

TSS Station 2TSS Station 3TSS Station 4

TSS Station 5

Biologicals Biologicals –– BOD and CODBOD and COD


COD MDL

BOD MDL

0.1

1

10

100

1000

mg

/L

BOD Station 1BOD Station 2

BOD Station 3BOD Station 4

BOD Station 5COD Station 1COD Station 2

COD Station 3COD Station 4

COD Station 5

Nutrients Nutrients –– Total and Dissolved Total and Dissolved PhosphorusPhosphorus


MDL

0.001

0.01

0.1

1

10

mg

/L

Total P Station 1

Total P Station 2

Total P Station 3

Total P Station 4

Total P Station 5

Dissolved P Station 1


Dissolved P Station 3Dissolved P Station 4


Nutrients Nutrients -- Total NitrogenTotal Nitrogen

DallasTxDOTPlanoNTTAMesquiteIrvingGarlandArlingtonMDL0

5

10

15

20

25

30

35

mg

/L

Total N Station 1Total N Station 2

Total N Station 3Total N Station 4

Total N Station 5

Metals Metals


Cadmium MDL

Arsenic MDL

0.000

0.001

0.010

0.100

mg

/L

Total Arsenic Station 1Total Arsenic Station 2

Total Arsenic Station 3Total Arsenic Station 4

Total Arsenic Station 5Total Cadmium Station 1

Total Cadmium Station 2Total Cadmium Station 3

Total Cadmium Station 4Total Cadmium Station 5

Metals Metals


Chromium MDL

Copper MDL

0.0001

0.0010

0.0100

0.1000

mg

/L

Total Copper Station 1

Total Copper Station 2Total Copper Station 3

Total Copper Station 4Total Copper Station 5

Total Chromium Station 1Total Chromium Station 2Total Chromium Station 3

Total Chromium Station 4Total Chromium Station 5

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MetalsMetals


Zinc MDL

Lead MDL

0.001

0.01

0.1

1

mg

/L

Total Lead Station 1

Total Lead Station 2Total Lead Station 3

Total Lead Station 4Total Lead Station 5

Total Zinc Station 1Total Zinc Station 2

Total Zinc Station 3Total Zinc Station 4

Total Zinc Station 5

DiazinonDiazinon


MDL

0.001

0.101

0.201

0.301

0.401

0.501

0.601

mg

/L

Diazinon Station 1

Diazinon Station 2Diazinon Station 3

Diazinon Station 4Diazinon Station 5

Summary of ResultsSummary of Results

•• Overall bacteria levels not as high as other Overall bacteria levels not as high as other Phase I communities (Pitt, 2005)Phase I communities (Pitt, 2005)–– Total coliform less than 12,000 MPN/100mLTotal coliform less than 12,000 MPN/100mL–– E. coli less than 1,750 MPN/100mLE. coli less than 1,750 MPN/100mL

Pitt, Robert; et al. The National Stormwater Quality Database, Version 1.1A Compilation and Analysis of NPDES, Stormwater Monitoring Information.2005.


•• COD/BOD levels varied by watershed, not COD/BOD levels varied by watershed, not enough data to statistically compare yetenough data to statistically compare yet

•• TSS/TDS values were greater than other TSS/TDS values were greater than other Phase I communities Phase I communities

•• Total and dissolved phosphorus in line Total and dissolved phosphorus in line with other Phase I communitieswith other Phase I communities


•• Total nitrogen slightly higher than other Total nitrogen slightly higher than other Phase I communitiesPhase I communities

•• Rain events monitored ranged from 0.12 Rain events monitored ranged from 0.12 in/hr to 0.95 in/hr in intensityin/hr to 0.95 in/hr in intensity

Future MonitoringFuture Monitoring

•• Continued monitoring of remaining Continued monitoring of remaining quarters in 2007quarters in 2007

•• Redeploy equipment in late 2007 or early Redeploy equipment in late 2007 or early 2008, commence monitoring for 4 2008, commence monitoring for 4 quarters in 2008quarters in 2008

•• Redeploy and monitor in 2009Redeploy and monitor in 2009•• Evaluate results and develop reportEvaluate results and develop report

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Decisions From ResultsDecisions From Results

•• Limited datasetLimited dataset•• Long term evaluate constituent levels and Long term evaluate constituent levels and

watershedswatersheds•• Decision to implement and target public Decision to implement and target public

education effortseducation efforts

Final Summary and Future GoalsFinal Summary and Future Goals

•• Initial and limited data set;Initial and limited data set;

•• Continue monitoring for 2.5 years;Continue monitoring for 2.5 years;

•• Establish baseline data on receiving streams in Establish baseline data on receiving streams in the DFW Metroplex the DFW Metroplex

•• Make data available onMake data available on--line with interactive map line with interactive map for public accessfor public access

•• Likely resume outfall monitoring in the next Likely resume outfall monitoring in the next permit termpermit term

Questions?Questions?

•• Jason MaldonadoJason Maldonado–– (281) 529(281) 529--4198 office4198 office–– 1250 Wood Branch Park Dr,1250 Wood Branch Park Dr,

Suite 300Suite 300–– Houston, Texas 77077Houston, Texas 77077

–– [email protected]@pbsj.com

•• Keith KennedyKeith Kennedy–– (817) 695(817) 695--9221 office9221 office–– 616 Six Flags Drive, 616 Six Flags Drive,

Centerpoint TwoCenterpoint Two

–– Arlington, Texas 76005Arlington, Texas 76005–– [email protected]@nctcog.org

nps 2007 rsmp final

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