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Deep River-Portage Burns Watershed TMDL

Deep River-Portage Burns Watershed TMDL. Stakeholder Meeting March 13, 2013. Watershed Description Listing Information Monitoring Information TMDL Allocation Development TMDL Process Schedule. Agenda. The Deep River-Portage Burns Watershed. General Watershed Description Subwatersheds

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Deep River-Portage Burns Watershed TMDL

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  1. Deep River-Portage Burns Watershed TMDL Stakeholder Meeting March 13, 2013

  2. Watershed Description Listing Information Monitoring Information TMDL Allocation Development TMDL Process Schedule Agenda

  3. The Deep River-Portage BurnsWatershed General Watershed Description Subwatersheds General Watershed Land Use General Watershed Population

  4. Land Use

  5. Listing Information

  6. 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

  7. 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

  8. 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

  9. Monitoring Information

  10. 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)

  11. 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

  12. Water Quality Parameters(E. coli) • 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

  13. Water Quality Parameters(Biological)

  14. Water Quality Parameters(General Chemistry)

  15. Water Quality Parameters(Nutrients)

  16. Water Quality Parameters(Field Parameters)

  17. 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

  18. TMDL Allocation Development

  19. 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 TMDL Allocations

  20. 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

  21. 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

  22. 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

  23. Load Duration Curve High Flows High Flows Moist Conditions Moist Conditions Mid-range Flows Mid-range Flows Dry Conditions Dry Conditions Low Flows Low Flows IDEM Data & USGS Gage 03340800 Flow Data Upstream Drainage Area is 22.64 Square Miles

  24. 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

  25. TMDL Process

  26. 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 What Is the TMDL Process?

  27. We need information on: Water quality data Possible pollution sources Potential stakeholders Studies, reports, documents Projects that have improved water quality IDEM Needs Your Help

  28. Schedule

  29. 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 TMDL Schedule

  30. 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

  31. Cory Fischer TMDL Project Manager Office of Water Quality Indiana Department of Environmental Management 100 N. Senate Ave. Indianapolis, Indiana 46204-2251 Phone: (317) 308-3184 Fax: (317) 308-3219 E-mail: cfischer1@idem.IN.gov www.watersheds.IN.gov/2347.htm TMDL Project Manager

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