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Nonpoint Source Water Pollution

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Big Raccoon Creek TMDL


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Location

The Big Raccoon Creek watershed is located in west-central Indiana and drains a total of 215 square miles. The Big Raccoon Creek originates near New Ross, and then flows southwest through the town of Ladoga where it ultimately empties into the Cecil M. Harden Lake near Portland Mills. The watershed is located in Boone, Hendricks, Montgomery, Putnam and Parke Counties. Major streams included in the Total Maximum Daily Load (TMDL) report are Big Raccoon Creek, Little Raccoon Creek, Ramp Creek, Cornstalk Creek, Haw Creek and Byrd Branch.

History

A comprehensive survey of the Big Raccoon Creek was conducted by the Indiana Department of Environmental Management (IDEM) in 2010 to address E. coli. Additional fish community and nutrient data from a 2005 IDEM survey was also used in the assessment of the watershed. Nonpoint source pollution is the primary pollution type addressed in the document because landuse in the watershed is largely agriculture.

Pollutants Addressed

TMDL reports identify and evaluate water quality problems in impaired water bodies and propose solutions to bring those waters into attainment with water quality standards. The Big Raccoon Creek watershed has impaired stream segments on the 303(d) list of impaired waters for E. coli and impaired biological communities (IBC), both of which are addressed in the document. Some of the recommended solutions to address the impairments include habitat and riparian improvement, livestock fencing to keep them out of streams, and cover crops to prevent soil and nutrient loss from agricultural fields.

Timeline

A draft TMDL meeting is scheduled for June 26, 2013 at 6:00 PM. The public meeting will be held at the Bainbridge Community Building located at 201 North Grant Avenue, Bainbridge, Indiana. The TMDL program will be described and an overview of the document will be presented.

After the meeting a 30 day comment period will begin. The document will then be submitted to the U.S. EPA for approval.

The TMDL Report

Supplemental Information

Watershed stakeholders and partners can use the final approved TMDL report to craft a watershed management plan (WMP) that meets both U.S. EPA’s nine minimum elements under the CWA Section 319 Nonpoint Source Program, as well as the additional requirements under IDEM’s 2009 WMP Checklist. Contact your IDEM Watershed Specialist to find out more.