Deep River-Portage BurnsWatershed TMDL

Stakeholder Meeting

March 13, 2013

Agenda

• Watershed Description

• Listing Information

• Monitoring Information

• TMDL Allocation Development

• TMDL Process

• Schedule

The Deep River-Portage BurnsWatershed

• General Watershed Description• Subwatersheds• General Watershed Land Use• General Watershed Population

Land Use

Listing Information

Historic Sampling

• Macroinvertebrates Main Beaver Dam Ditch 1990• Fixed Station Data 1990-2013• Burns Ditch TMDL Assessment 2000

– E. coli

• Probabilistic Sampling 2000, 2005, 2010

Draft 2012 303(d) Listings

• Approximately 125 stream miles impaired:– 91 stream miles Impaired Biotic Community (IBC)– 50 stream miles E. coli– 34 stream miles Polychlorinated Biphenyl (PCB) in fish

(Category 5B)– 15 stream miles Dissolved Oxygen (DO)– 12 stream miles siltation

Reassessment Schedule• Data collection completed:

– E. coli October 2013– Chemical parameters March 2014– Fish/Macroinvertebrate July 2013

• Data packet completed:– May 2014

• Reassessment meeting:– June/July 2014

Monitoring Information

2013 Recreational Season Monitoring• 35 sites sampled monthly

– Sampling begins on April 1– Sampling ends on October 31

• 9 flow sites sampled monthly– Sampling method

• Acoustic Doppler Profiler (ADP)• FlowTracker/Acoustic Doppler Velocimeter (ADV)

2013 Non-recreational Season Monitoring

• 9 sites sampled monthly– These are 9 of the original 35 sites– Sampled for 12 months– These are the 12-digit pour points

• This location provides the most information to be used for the 12-digit watershed

– These are the flow sites• Flow will continue to be sampled monthly at these sites

Water Quality Parameters(E. coli)

125 MPN/100 mL5 Sample MonthlyGeometric Mean

Indiana Administrative Code (327 IAC 2-1-6)

235 MPN/100 mL Single Sample Maximum

•E. coli will be sampled monthly April 1-October 31 during the recreational season•There will also be a 5 sample monthly geometric mean sampled in September

Water Quality Parameters(Biological)

Fish Community Index of Biotic Integrity (IBI)(Range of possible scores is 6-60)

Fully Supporting: IBI > 36Not Supporting: IBI < 36

Based on IDEM scoring methodology

Benthic Aquatic Macroinvertebrate Index of Biotic Integrity (mIBI) (Range of possible scores is 12-60)

Fully Supporting: mIBI > 36Not Supporting: mIBI< 36

Based on IDEM scoring methodology

Qualitative Habitat Evaluation Index (QHEI)(Range of possible scores is 0-100)

Good Habitat: QHEI > 51Poor Habitat: QHEI < 51

Based on IDEM scoring methodology

Water Quality Parameters (General Chemistry)

Total Solids No Regulatory Target

Total Suspended Solids (TSS) No value should exceed 30.0 mg/Lin an IBC impaired segment

IDEM Target value

Total Dissolved Solids No Regulatory Target

SulfateCriteria based on hardness and chloride

Indiana Administrative Code (327 IAC 2-1-6)

ChlorideCriteria based on hardness and sulfate

Indiana Administrative Code (327 IAC 2-1-6)

Hardness No Regulatory Target

Alkalinity No Regulatory Target

Water Quality Parameters (Nutrients)

Ammonia NitrogenCriteria based on temperature and pH

Indiana Administrative Code (327 IAC 2-1-6)

Total Kjeldahl Nitrogen (TKN)No value should exceed 0.591 mg/L

U.S. Environmental Protection Agency (U.S. EPA) recommendation

Nitrate-N+ Nitrite-N No value should exceed 10 mg/L IDEM Target value

Total Phosphorus (TP) No value should exceed 0.30 mg/L IDEM Target value

Total Organic Carbon (TOC) No Regulatory Target

Chemical Oxygen Demand (COD) No Regulatory Target

Water Quality Parameters(Field Parameters)

pH No value should be < 6.0 or > 9.0Indiana Administrative Code (327 IAC 2-1-6)

DO No value should be < 4.0 mg/L or > 12.0 mg/L

Indiana Administrative Code (327 IAC 2-1-6) and IDEM Target value

% DO Saturation No Regulatory Target

Temperature Values vary monthlyIndiana Administrative Code (327 IAC 2-1-6)

Specific Conductance No Regulatory Target

Turbidity No Regulatory Target

Weather Conditions No Regulatory Target

Monitoring Overview• Monitoring will begin April 2013• 35 sites monitored during recreational season

– 7 monthly results• 9 sites monitored during the non-recreational season

– 12 monthly results• 2 IDEM fixed stations will also be incorporated

– Monthly sampling• Open to comments on site selection in this project

– Have met with NIRPC and incorporated their thoughts

TMDL Allocation Development

TMDL Allocations

• Clean Water Act requires that TMDL be allocated as follows:– TMDL = WLA + LA + MOS– Wasteload allocations (WLA) for “point sources”

(regulated under NPDES)– Load allocations (LA) for nonpoint sources and – MOS for margin of safety

Allocation Development• Data used to develop allocation

– Precipitation• National Oceanic and Atmospheric Administration (NOAA)

weather station

– Flow• U.S. Geological Survey (USGS) Flow Gage

– Modeling Using IDEM Data• Spreadsheet modeling tool• Traditional modeling

Precipitation

• Many sources of pollution are impacted by precipitation

• A path for pollutant to enter a waterbody is through rain and snow melt

• Information on precipitation used with the Load Duration Curve (LDC) will give a better overall sense of flow conditions in stream

Flow

• The long history of flow gages provide a valuable tool in evaluating water quality data

• USGS flow gages provide a consistent high quality source of flow information

• The large network of flow gages means that finding a representative flow gage is possible

Load Duration Curve

DryConditions

LowFlows

HighFlows

Mid-rangeFlows

MoistConditions

IDEM Data & USGS Gage 03340800 Flow DataUpstream Drainage Area is 22.64 Square Miles

1,000,000,000

10,000,000,000

100,000,000,000

1,000,000,000,000

10,000,000,000,000

0 10 20 30 40 50 60 70 80 90 100

Flow Duration I nterval (%)

E. c

oli L

oad

(CFU

/day

)

Target

All Data

HighFlows

MoistConditions

Mid-rangeFlows

DryConditions

LowFlows

Modeling

• Recovery Potential Tool• Purdue University Calumet will be doing more

in depth modeling (HSPF)• IDEM will be using simplistic modeling

– LDC, STEPL, LOADEST, L-THIA

• A comparison of different models will be completed by IDEM for this project

TMDL Process

What Is the TMDL Process?• Review 303(d) list and sampling data • Kickoff stakeholder meeting• Gather information• Conduct additional monitoring • Reassess waterbodies• Gather additional information and produce draft TMDL

report• Hold the draft TMDL stakeholder meeting• 30-day comment period• Revise draft TMDL and respond to comments on draft final

TMDL• Submit TMDL to U.S. EPA and receive final TMDL approval

IDEM Needs Your Help• We need information on:

– Water quality data– Possible pollution sources– Potential stakeholders– Studies, reports, documents– Projects that have improved water quality

Schedule

Deep River-Portage BurnsWatershed TMDL Schedule

• Kickoff meeting: March 13, 2013

• Monitoring begins: April 2013

• Draft TMDL Meeting: Summer 2014

• 30-day Comment Period: Summer 2014

• Final TMDL Report Submittal to U.S. EPA: Fall 2014

Deep River-Portage BurnsWatershed WMP Schedule

• Estimated start of Section 319 Grant: January 2014

• Completed Deep River WMP: March 2015• Implementation of BMPs: July 2015-

September 2017

TMDL Project ManagerCory FischerTMDL Project ManagerOffice of Water QualityIndiana Department of Environmental Management100 N. Senate Ave.Indianapolis, Indiana 46204-2251

Phone: (317) 308-3184Fax: (317) 308-3219E-mail: cfischer1@idem.IN.govwww.watersheds.IN.gov/2347.htm