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Southern Whitewater River Watershed TMDL

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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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Presentation Transcript
slide1

Southern Whitewater River

Watershed TMDL

Stakeholder Meeting

October 29, 2013

agenda
Watershed Description

Listing Information

Monitoring Information

Load Allocations

TMDL Process

Schedule

Agenda
slide8

Land Use

12.2%

28.8%

5.1%

50.6%

historic sampling
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*
other sampling
Other Sampling
  • Duck Creek Watershed Diagnostic Study (2008)
  • Salt Creek Watershed Diagnostic Study (2009)
draft 2012 303 d listings
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)

monitoring overview
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
2013 14 recreational season monitoring
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)
2013 14 non recreational season monitoring
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
water quality parameters e coli
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
reassessment schedule
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
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

TMDL Allocations
allocation development
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
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

What Is the TMDL Process?
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

IDEM Needs Your Help
southern whitewater river watershed tmdl schedule
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
southern whitewater river watershed tmdl information
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
contact information
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: [email protected]

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: [email protected]

www.watersheds.IN.gov/2347.htm

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