Deep River-Portage Burns Watershed TMDL
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Deep River-Portage BurnsWatershed TMDL
Stakeholder Meeting
March 13, 2013
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Agenda
• Watershed Description
• Listing Information
• Monitoring Information
• TMDL Allocation Development
• TMDL Process
• Schedule
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The Deep River-Portage BurnsWatershed
• General Watershed Description• Subwatersheds• General Watershed Land Use• General Watershed Population
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Land Use
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Listing Information
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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
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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
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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
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Monitoring Information
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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)
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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
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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
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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
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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
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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
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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
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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
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TMDL Allocation Development
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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
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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
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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
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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
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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
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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
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TMDL Process
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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
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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
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Schedule
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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
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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
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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: [email protected]/2347.htm