Approach for TMDL DevelopmentApproach for TMDL Development

March, 2002

P R E S E N T E D B Y :

for the

West Branch DuPageRiver Watershed

for the

West Branch DuPageRiver Watershed

Presentation OverviewPresentation Overview

uWest Branch DuPage River Watershed Background

uTMDL Development Process

uProject Update

West Branch DuPage River Watershed BackgroundWest Branch DuPage River Watershed Background

West Branch DuPage River Watershed BackgroundWest Branch DuPage River Watershed Background

Impaired Segments: 5 Pollutants/Pollution: 8

Potential Causes of Impairment associated with Water SegmentsPotential Causes of Impairment

associated with Water Segments

Phos

phor

us

Nitro

gen

Nitra

te

Salin

ity /

TDS

/ Chl

orid

es

Tota

l Sus

pend

ed S

olid

s

Copp

er

Habi

tat A

ltera

tions

Flow

Alte

ratio

ns

GBK07

GBK09

GBK11

GBK05

GBK12

SegmentSegment

SSSS

SS SSSS SSSS SS

SS SSSS SS

SS SSSS SS

SSSSSS

SSSSSS SSSS SSSS

SSSS SS

Water Quality Problems and Sources from 303(d) ListWater Quality Problems and Sources from 303(d) List

- Chloride: Road salt for deicing

- Copper: Runoff from roads, parking lots

- Nutrients (Nitrate, Nitrogen, Phosphorus): Wastewater treatment plants, lawn care, atmospheric deposition, urban runoff and stormsewers

- Sediments and solids: Construction activities, erosion, urban runoff, deicing operation

- Habitat Alterations: Channelization, Streambank modification/destabilization

- Flow Alterations: Dam construction, flow regulation/modification

TMDL Development ProcessTMDL Development Process

Data Assessment

andCharacterization

Data Assessment

andCharacterization

ModelCalibration and

Validation

ModelCalibration and

ValidationModelingStrategy

Development

ModelingStrategy

Development

Public InvolvementPublic Involvement

DevelopAllocationScenarios

DevelopAllocationScenarios

CompileReport

CompileReport

Public InvolvementPublic Involvement

TMDL Development ProcessTMDL Development Process

Data Assessment

andCharacterization

Data Assessment

andCharacterization

ModelCalibration and

Validation

ModelCalibration and

ValidationModelingStrategy

Development

ModelingStrategy

Development

Public InvolvementPublic Involvement

DevelopAllocationScenarios

DevelopAllocationScenarios

CompileReport

CompileReport

Public InvolvementPublic Involvement

Public InvolvementPublic Involvement

u Stakeholder Activities- Public Meetings

uCoordination with Local Agencies- IEPA, DuPage County, NIPC, Illinois

DNR, NRCS- Point Sources in the watershed- The Conservation Foundation

Data Assessment

andCharacterization

Data Assessment

andCharacterization

ModelCalibration and

Validation

ModelCalibration and

ValidationModelingStrategy

Development

ModelingStrategy

Development

Public InvolvementPublic Involvement

DevelopAllocationScenarios

DevelopAllocationScenarios

CompileReport

CompileReport

Public InvolvementPublic Involvement

TMDL Development ProcessTMDL Development Process

Data Assessment and CharacterizationData Assessment and Characterization

uAcquire Relevant Data

uDetermine Best Data Sets

uAssess Potential Sources of Stream Impairment

uEvaluate Activities that may Influence Impairment

Data Assessment and CharacterizationData Assessment and Characterization

u Data sources:- Previous Modeling Studies

l DuPage County FEQ model

l DuPage County HSPF model

- Monitoring Datal Federal and State

databasesl MWRDGC

- New Monitoring Datal West Branch TMDL

Monitoring Group

Data Assessment and Characterization: New Monitoring Data

Data Assessment and Characterization: New Monitoring Data

Data Assessment and CharacterizationData Assessment and Characterization

0

2

4

6

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16

01/01/1995 05/15/1996 09/27/1997 02/09/1999 06/23/2000

Time

Nit

rate

, mg

/L

0

100

200

300

400

500

600

700

800

Flo

w (

cfs)

Nitrate 305(b) Guideline (7.8 mg/L) 55400955539900 USGS Streamflow (05539900)

Data Assessment and Characterization: Land Use

Data Assessment and Characterization: Land Use

Reclassified NIPC land use (1990)

West Branch DuPage River Watershed Land UseWest Branch DuPage River Watershed Land Use

Land Use Types Area (acres) % of Total AreaAgricultural 13,716 20.1Commercial 3,380 4.9Forest 4,820 7.0Industrial 2,823 4.1Institutional Excl C 3,802 5.6Open Land 15,081 22.0Residential 19,505 28.5Transportation 1,076 1.6Water 1,275 1.9Wetlands 2,918 4.3Grand Total 68,396 100.0

West Branch DuPage River Point SourcesWest Branch DuPage River Point Sources

FACILITY NAME STATUS DATE RECEIVING WATERLAGROU DISTRIBUTION SYSTEM ACTIVE KRESS CREEKWEST CHICAGO STP ACTIVE W. BR. DUPAGE RIVERMASONITE CORPORATION INACTIVE 07/20/1998 KRESS CREEKWHEATON CHRISTIAN HIGH SCHOOL INACTIVE 10/09/1997 UNNAMED TRIB OF W BR DUPAGE RIVERU.S. DEPT OF ENERGY-FERMILAB ACTIVE FERRY CK, KRESS CK, INDIAN CKCAROL STREAM STP ACTIVE KLEIN CREEK (DESPLAINES BASIN)BARTLETT WWTP ACTIVE WEST BRANCH OF DUPAGE RIVERDUPAGE COUNTY-CASCADE STP ACTIVE WEST BRANCH OF DUPAGE RIVERWHEATON S.D. ACTIVE SPRING CREEKCOCK ROBIN ICE CREAM INC INACTIVE aprox. 1999 DUPAGE RIVERHANOVER PARK STP #1 ACTIVE WEST BRANCH OF THE DUPAGE RIVERHANOVER PARK STP #2 INACTIVE 12/31/1999 W. BR. DUPAGE RIVERMWRDGC HANOVER PARK STP ACTIVE W. BR. DUPAGE RIVERPLEASANT RIDGE MHP ACTIVE KLEIN CREEK TO DUPAGE RIVERALUMAX EXTRUSIONS-WEST CHICAGO INACTIVE 08/31/1999 KRESS CREEKBP NAPERVILLE COMPLEX ACTIVE WEST BRANCH OF DUPAGE RIVERUNION PACIFIC RAILROAD INACTIVE 07/01/2001 KRESS CREEKROSELLE-BOTTERMAN WWTF ACTIVE WEST BRANCH OF DUPAGE RIVERST. ANDREWS COUNTRY CLUB INACTIVE 05/27/1998 GOLF COURSE PONDSIDWELL COMPANY-WEST CHICAGO INACTIVE 03/27/2001 WEST BRANCH OF DUPAGE RIVERELMHURST CHICAGO STONE-WARRENV INACTIVE 09/01/1992 DUPAGE RIVERBALL HORTICULTURAL CO.-W CHICA ACTIVE KRESS CREEKPACKER ENGINEERING ASSOCIATES INACTIVE 04/01/2000 POND ON SITEKERR-MCGEE-WEST CHICAGO ACTIVE WEST BRANCH DUPAGE RIVERPIERCE & STEVENS CORPORATION ACTIVE DUPAGE RIVERREED KEPPLER FAMILY AQUATIC C ACTIVE TRIB OF KRESS CREEKNAPERVILLE PARK DIST-SPORTSMAN ACTIVE TRIB TO WEST BRANCH OF DUPAGE RIVERNORTHWESTERN FLAVORS, INC. INACTIVE 08/21/2000 TRIB TO KRESS CREEK

Data Assessment and Characterization:Major Data Sources

Data Assessment and Characterization:Major Data Sources

Data Layer Source Date

Land Use NIPC, IL State 1990

Stream Segment EPA, USGS 1999, 2000

Weather Data NCDC, BASINS, NWClimate Center, USGS 1948–2000

Topography USGS 2000

Water QualitySTORET,EPA,

MWRDGC, WB TMDLGroup

1990-2000

Watershed Boundaries DuPage County 2000

Point SourcesIEPA, MWRDGC, WB

TMDL Group 1999

Sewered Areas DuPage County 1999

Streamflow Data USGS 1945–2000

TMDL Development ProcessTMDL Development Process

Data Assessment

andCharacterization

Data Assessment

andCharacterization

ModelCalibration and

Validation

ModelCalibration and

ValidationModelingStrategy

Development

ModelingStrategy

Development

Public InvolvementPublic Involvement

DevelopAllocationScenarios

DevelopAllocationScenarios

CompileReport

CompileReport

Public InvolvementPublic Involvement

Modeling Strategy DevelopmentModeling Strategy Development

uModel Purpose:- Technique of representing what has

occurred in the past and what may occur in the future

TMDL Development:Modeling Strategy Development

TMDL Development:Modeling Strategy Development

u Select Appropriate Models:- EPA BASINS / HSPF

u Define Water Quality Targets (TMDL Endpoints)- Illinois water quality standards- 305(b) Guidelines

TMDL EndpointsTMDL Endpoints

Parameter Storet #Water Quality Standard

(WQS) 305(b) Guidelines TMDL Endpoint

Chloride 00940 500 mg/L WQS WQSTotal Dissolved Solids (TDS) 70304 1,000 mg/L WQS WQSNitrates as N 00620 N/A Nitrate-N not exceed

7.8 mg/L305(b) guideline

Phosphorus 00001 N/A Streams = 0.61mg/l 305(b) guidelineTotal Suspended Solids 00530 N/A 116 mg/L 305(b) guidelineHabitat Alterations N/A SHAP bank stability

score (metric #9 ) less than 8 or SHAP chennel alteration (metric #12) less than 4

305(b) guideline

Flow Alterations N/A Documented Site Specific Knowledge (Dam construction, water withdrawl, etc)

305(b) guideline

Copper (dissolved), ug/L as C 01042 Use Chronic Water Quality Standard

Acute = Exp[A+B *ln(H), Where A = -1.464, B=0.9422, H=Hardness Chronic =Exp[A+B *ln(H), Where A = -1.465, B=0.8545

TMDL Development ProcessTMDL Development Process

Data Assessment

andCharacterization

Data Assessment

andCharacterization

ModelCalibration and

Validation

ModelCalibration and

ValidationModelingStrategy

Development

ModelingStrategy

Development

Public InvolvementPublic Involvement

DevelopAllocationScenarios

DevelopAllocationScenarios

CompileReport

CompileReport

Public InvolvementPublic Involvement

Model Calibration and ValidationModel Calibration and Validation

u Purpose: “Fine Tune” the model to observed conditions.

u Hydrologic Calibration

u Water Quality Calibration

Model Calibration and ValidationModel Calibration and Validation

uHydrologic Calibration

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Data and Modeling Leads to DecisionsData and Modeling Leads to Decisions

BacteriaNSI

WQMonitoring

Weather

Boundaries

BMPs

Surface Waters

Land Use/Land Cover

TRI

PCS

Superfund

Sources of Pollutiona

Monitoring Dataa

Spatial Dataa

Watershed and Water Quality Modeling

Decisions

Data Assessment

TMDL Development ProcessTMDL Development Process

Data Assessment

andCharacterization

Data Assessment

andCharacterization

ModelCalibration and

Validation

ModelCalibration and

ValidationModelingStrategy

Development

ModelingStrategy

Development

Public InvolvementPublic Involvement

DevelopAllocationScenarios

DevelopAllocationScenarios

CompileReport

CompileReport

Public InvolvementPublic Involvement

Develop Allocation ScenariosDevelop Allocation Scenarios

u Goal:- Meet the TMDL Endpoints for Water Quality

u Outcome:- Determine load allocations for nonpoint sources- Determine wasteload allocations for point

sources- Determine margin of safety

Develop Allocation ScenariosDevelop Allocation Scenarios

TMDLTMDLWasteLoad

Allocations

WasteLoad

AllocationsLoad

AllocationsLoad

AllocationsMargin

ofSafety

Marginof

Safety== ++++

Develop Allocation Scenarios:Pollutant Load Reduction Examples

Develop Allocation Scenarios:Pollutant Load Reduction Examples

uNonpoint sources:- Nonstructural BMPs

- Structural BMPs

- BMP Retrofitting

uPoint sources:

- Biological Nutrient Removal

- Phosphorus Removal Through Chemical Precipitation

TMDL Development ProcessTMDL Development Process

Data Assessment

andCharacterization

Data Assessment

andCharacterization

ModelCalibration and

Validation

ModelCalibration and

ValidationModelingStrategy

Development

ModelingStrategy

Development

Public InvolvementPublic Involvement

DevelopAllocationScenarios

DevelopAllocationScenarios

CompileReport

CompileReport

Public InvolvementPublic Involvement

Compile ReportCompile Report

u Watershed Characterization and Source Assessment

u Modeling Approach

u Water Quality Targets (TMDL Endpoints)

u TMDL Allocation Scenarios

u Request for Delisting

u Implementation Plan

Project UpdateProject Update

u Completed Tasks:- Data Assessment and Characterization

l Compiled Data from local sourcesl Investigated Water Quality Problems and Sources

- Model Strategy Developmentl Prepared initial model input files

u Tasks in Progress

- Model Calibration and Validationl Hydrologic Calibration

Project Update (cont.)Project Update (cont.)

uNext: - Model Calibration and Validation

l Water Quality Calibration

- Develop Allocation Scenariosl Coordinate with IEPA and Stakeholders

- Prepare Final Report

Questions?Questions?

Contact: Gary EickenIllinois Environmental Protection Agency1021 North Grand Avenue EastPO BOX 19276Springfield, IL 62794-9276(217) 782-3362Gary.Eicken@epa.state.il.us

Data Assessment and CharacterizationData Assessment and Characterization

0

0.5

1

1.5

2

2.5

3

3.5

01/01/1990 05/16/1991 09/27/1992 02/09/1994 06/24/1995 11/05/1996 03/20/1998 08/02/1999Time

Ph

osp

ho

rus

Co

nc,

mg

/L

0

100

200

300

400

500

600

700

800

Flo

w, c

fs

305(b) guideline (mg/L) Total Phosphorus (05539900) Stream Flow 05539900 (USGS)

Develop Allocation ScenariosDevelop Allocation Scenarios

uPollutant load reduction from point sources- Meet Illinois

Water QualityStandards

- Reduce nitrate load(denitrification)

DenitrificationDenitrification

Develop Allocation ScenariosDevelop Allocation Scenarios

Dry Pond

Wet Pond

ExtendedDetention

Pond

Develop Allocation ScenariosDevelop Allocation Scenarios

Bioretention

Grass Swale

Develop Allocation ScenariosDevelop Allocation Scenarios

InfiltrationTrench

PorousPavement

Develop Allocation ScenariosDevelop Allocation Scenarios

ConstructedWetland

Stormwater Treatment

System:VortechsTM