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Southern Whitewater River Watershed TMDL

Southern Whitewater River Watershed TMDL. Stakeholder Meeting October 29, 2013. Watershed Description Listing Information Monitoring Information Load Allocations TMDL Process Schedule. Agenda. Watershed Description. Land Use. 12.2%. 28.8%. 5.1%. 50.6%. Listing Information.

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Southern Whitewater River Watershed TMDL

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  1. Southern Whitewater River Watershed TMDL Stakeholder Meeting October 29, 2013

  2. Watershed Description Listing Information Monitoring Information Load Allocations TMDL Process Schedule Agenda

  3. Watershed Description

  4. Land Use 12.2% 28.8% 5.1% 50.6%

  5. Listing Information

  6. Historic Sampling • Macroinvertebrates Study in 1994, 1997, 2004 • Pesticide Study in 1997 • Sediment Sampling in 2002 • Fish Tissue Sampling in 1997, 2002, 2007, 2012 • Fixed Station Data from 1991-2013 • 2009 TMDL Sampling • E. coli only • Probabilistic Sampling 1997, 2002, 2007, 2014*

  7. Other Sampling • Duck Creek Watershed Diagnostic Study (2008) • Salt Creek Watershed Diagnostic Study (2009)

  8. Draft 2012 303(d) Listings Approximately 293 stream miles impaired: 232 stream miles E. coli 125 stream miles Dissolved Oxygen (DO) 62 stream miles Polychlorinated Biphenyl (PCB) in fish tissue 46 stream miles Total Mercury (Hg) 0 stream miles Impaired Biotic Community (IBC)

  9. Monitoring Information

  10. Monitoring Overview • Monitoring will begin November 2013 • 32 sites monitored during recreational season • 7 monthly results • 11 sites monitored during the non-recreational season • 12 monthly results • 1 IDEM fixed station will also be incorporated • Monthly sampling • Open to comments on site selection in this project • Have met with Franklin, Decatur and Dearborn County SWCDs and incorporated their thoughts

  11. 2013-14 Recreational Season Monitoring • 33 sites sampled monthly for water chemistry • 11 sites sampled monthly for flow • Flow collected at 9 sites • Sampling method • Acoustic Doppler Profiler (ADP) • FlowTracker/Acoustic Doppler Velocimeter (ADV)

  12. 2013-14 Non-recreational Season Monitoring • 11 sites sampled monthly • These are 11 of the original 32 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 • 9 of these are the flow sites • Flow will continue to be sampled monthly at these sites

  13. Water Quality Parameters(E. coli) • E. coli will be sampled monthly April 1-October 31 during the recreational season • In Spring of 2014 there will be 5 weekly samples collected to calculate a geometric mean

  14. Water Quality Parameters(Biological)

  15. Water Quality Parameters(General Chemistry)

  16. Water Quality Parameters(Nutrients)

  17. Water Quality Parameters(Field Parameters)

  18. Reassessment Schedule • Data collection completed: • E. coli October 2014 • Chemical parameters October 2014 • Fish/Macroinvertebrate July 2014 • Data packet completed: • February 2015 • Reassessment meeting: • February 2015

  19. TMDL Allocation Development

  20. 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

  21. 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 • Load Duration Curve modeling • Recovery Potential

  22. TMDL Process

  23. 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?

  24. 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

  25. Schedule

  26. Kickoff meeting: October 2013 Monitoring begins: November 2013 Monitoring ends: October 2014 Draft TMDL Meeting: Summer 2015 30-day Comment Period: Summer 2015 Final TMDL Report Submittal to U.S. EPA: Fall 2015 Southern Whitewater RiverWatershed TMDL Schedule

  27. Southern Whitewater RiverWatershed TMDL Information • Project Webpage: http://www.in.gov/idem/nps/2652.htm • Location of Sampling Sites • Meeting Schedules • Project Workplan • Site Photos • Quarterly Data Results • Presentations

  28. Ali Meils TMDL Project Manager Office of Water Quality IDEM 100 N. Senate Ave. Indianapolis, IN 46204-2251 Phone: (317) 308-3204 Fax: (317) 308-3219 E-mail: ameils@idem.IN.gov Contact Information Kathleen Hagan Watershed Specialist Office of Water Quality IDEM 100 N. Senate Ave. Indianapolis, IN 46204-2251 Phone: (317) 308-3197 Fax: (317) 308-3219 E-mail: khagan@idem.IN.gov www.watersheds.IN.gov/2347.htm

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