Lower Big Blue Watershed Draft Escherichia coli ( E. coli ) TMDL

1. Lower Big Blue Watershed Draft Escherichia coli (E. coli) TMDL Stakeholder Meeting May 7, 2014

2. Watershed Overview Listing Information Total Maximum Daily Load (TMDL) Allocations Implementation Schedule Agenda

3. Watershed Overview Watershed Size Watershed Location Lower Big Blue Subwatersheds General Watershed Land Use

4. Watershed Overview Drains approximately 280 square miles County area • 19.14% in Hancock • 5.10% in Henry • 1.81% in Johnson • 29.42% in Rush • 44.35% in Shelby Municipalities • Shelbyville • Shirley • Morristown • Edinburgh

6. Subwatersheds • Headwaters Little Blue River • Beaver Meadow Creek • Gilson Creek- Little Blue River • Manilla Branch- Little Blue River • Town of Rays Crossing- Little Blue River • Headwaters Six Mile Creek • Anthony Creek- Six Mile Creek • Nameless Creek • Prairie Branch- Big Blue River • Foreman Branch- Big Blue River • DePrez Ditch- Big Blue River • Shaw Ditch- Big Blue River

7. Land Use

9. Listing Information Lower Big Blue Watershed

10. Clean Water Act requires that a 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 natural background MOS for margin of safety Definition of a TMDL

11. Water Quality StandardsEscherichia coli (E. coli) April 1 through October 31, E. coli shall not exceed 125 colony forming units (cfu) per 100 milliliters (mL) as a geometric mean based on not less than 5 samples equally spaced over a 30-day period nor exceed 235 cfu per 100 mL in any 1 sample in a 30-day period

12. Impaired Segments -72 Miles E. coli -15 Miles PCB Fish Tissue -8 Miles Total Mercury • TMDL only addresses E. coli

13. 2012 listings reassessed E. coli sampling performed by IDEM in 2010 21 sites for E. coli Sampled 5 consecutive weeks September 20, 2010 – October 18, 2010 2013 East Fork White River sampling 2 sites sampled in Lower Big Blue River watershed July 16, 2013- August 13, 2013 Assessment of Water Quality

15. E. coli Data • IDEM sampled in 2010, 2013 • Geometric mean calculated for each site • 7 sites reported meeting the standard in 2010 • 14 sites reported not meeting the standard in 2010 • 2 sites reported not meeting the standard in 2013 • Highest geometric mean = 1215.7 • Site 21 • Lowest geometric mean = 30.16 • Site 1 • Highest single sample = 2419.6 • Sites 3, 10 • Lowest single sample = 10.8 • Site 1

16. E. coli Data

17. Impaired Segments -256 Miles E. coli -15 Miles PCB Fish Tissue -8 Miles Total Mercury • TMDL only addresses E. coli

18. TMDL Allocations

20. Lower Big Blue River Sources of E. coli Point Sources • Municipal NPDES Permits • 5 permitted WWTPs • MS4 Permits • 2 permitted MS4s Nonpoint Sources • Land use Practices: Agricultural, Forested, Urban • Wildlife • CFOs • 12 permitted CFOs • Septic Systems

21. Point Sources • Municipal NPDES Permits • IN0031593- Eastern Hancock Jr/Sr High School • IN0024503- Shirley WWTP • IN0023841- Morristown WWTP • IN0032867- Shelbyville WWTP • IN0020184- Edinburgh WWTP • MS4 Permit • INR040051- Shelbyville • INR040026- Edinburgh

22. Nonpoint Sources • Land Use Practices • Agricultural • Forested • Urban • CFOs • 184- David Vanosdol • 637- Janes Brothers • 1901- SSZ Enterprises • 2208- Jarrod Law and Michael Pauszek • 2950- Ronald Sullivan • 4448- Jeff and Bruce Muegge • 4623- Bob White Farm • 1939- Signature Farms Morristown • 2581- Lewis Pork Farm LLC • 4909- William E. Smith Farm 3 • 6435- J & J Livestock LLC • 6582- Pork in Blue River LLC • Septic Systems • Tile Drains • Wildlife

23. Load Allocations Agricultural Run-off Failing Septic Systems Livestock Tile Drains Urban Run-off Wildlife Forested Lower Big Blue River TMDL Allocations

24. 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 will give a better overall sense of flow conditions in stream

25. Flow • The long history of flow gages provides 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

26. Downstream Upstream

27. Load Reductions Needed

28. Implementation

29. Implementation of TMDL expected to occur via ongoing and new watershed management activities: Outreach, education, and training Agricultural conservation practices Urban storm water management Control of failing septic systems Forestry BMPs Implementation

30. Potential Priority Implementation Areas

31. Schedule

32. Sampling Completed September 2010 and 2013 Draft TMDL Meeting: May 7, 2013 30-Day Comment Period: May 7– June 6 www.idem.in.gov/nps/3914.htm Final TMDL Report Submittal to U.S. Environmental Protection Agency (U.S.EPA): July 2014 Lower Big Blue River TMDL Schedule

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