Wabash River Watershed

Wabash River watershedThe Wabash River, Mississinewa River and Beaver Creek and Grand Lake St. Marys watersheds are located in western Ohio.  They drain a total of 331 square miles in Ohio and flow through all or part of three counties.  Municipalities partially or fully in the watershed include Celina, Coldwater, St. Henry and Fort Recovery.

The watersheds are predominantly comprised of cultivated crops with pockets of pasture and hay lands and urban development.

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Beaver Creek and Grand Lake St. Marys Watershed

Beaver Creek and Grand Lake St. Marys watershedThe Beaver Creek and Grand Lake St. Marys watershed drains approximately 171 square miles near the Ohio-Indiana border in west-central Ohio, consisting of mostly agricultural land.  The watershed lies mostly within Mercer County with a small portion in Auglaize County.  Cities within the watershed include Coldwater, St. Henry, Celina, Montezuma, Chickasaw, and St. Marys.  Grand Lake St. Marys, Ohio’s largest inland lake, is the drinking water supply for the City of Celina.  The population of the watershed is approximately 25,000 people.  According to the agricultural statistics, there are 295,400 “animal units” of hogs, poultry and cows in the watershed.





The causes of impairment are stream channelization, drainage tiles, loss of floodplains and streamside vegetation, manure runoff and untreated sewage flowing from failing home septic systems and small communities without any wastewater collection or treatment.

According to the 2012 Integrated Report, this watershed will next be monitored in 2018.

The Beaver Creek and Grand Lake St. Marys Total Maximum Daily Load (TMDL) report was approved by U.S. EPA on September 28, 2007.  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.

TMDLs were calculated for fecal coliform bacteria, total phosphorus and nitrate.  Some of the recommendations for improvement include managing livestock manure to reduce nutrient runoff, improving erosion and sediment control in all areas, and eliminating the pervasive bacteria problems.

TMDL Report

  • News Release - October 10, 2007
  • A meeting to discuss the project took place on February 21, 2007, in the Central Services Building, 220 West Livingston St., Celina.  See the February 12, 2007 News Release.  At the meeting, Ohio EPA staff was joined by the Grand Lake/Wabash Watershed Alliance and a Tetra Tech consultant to discuss the Agency’s findings.  Public feedback at the meeting was used to complete the TMDL report.
  • Fact Sheet - October 2007

Mississinewa River Watershed

Mississinewa River watershedThe Mississinewa River begins in Ohio and flows westward through Indiana into the Wabash River.  It drains 30 square miles of land in Ohio.  Land use in the Ohio portion of the watershed is predominantly comprised of cultivated crops with small pockets of forest and pasture and hay lands.  Part of the Village of Union is located in the watershed.







According to the 2012 Integrated Report, this watershed will next be monitored in 2018.

There is no TMDL information available at this time.

There is no supplemental information available at this time.

There is no implementation information available at this time.

Wabash River Watershed

Wabash River watershedThe Wabash River watershed is located in west-central Ohio, near the Indiana-Ohio border.  The watershed drains 323 square miles of mostly agricultural land intermixed with several small towns and cities.

The 2002 and 2004 Section 303(d) lists identify the impairments as other habitat alterations, which encompasses nutrient and siltation impairments as well as non-pollutant issues such as loss of riparian habitat and flow alteration.





According to the 2012 Integrated Report, this watershed will next be monitored in 2018.

This TMDL report was developed by U.S. EPA Region 5.  A copy of the U.S. EPA Region 5 posting is provided below.

8/27/2004

Wabash River Watershed, Ohio

This Final Total Maximum Daily Load (TMDL) has been developed to attain water quality standards and designated uses established for the Wabash River in Mercer County, Ohio.  Ohio identified segments from Stony Creek to Beaver Creek (headwaters to above Beaver Creek and the Wabash River (downstream from Beaver Creek to mouth), and identified nitrates/nitrites, phosphorus, and total suspended solids (TSS) as pollutants.  This TMDL has been developed by U.S. EPA, Region 5.  The public had an opportunity to comment on the draft Wabash River TMDL from February 26, 2004 to March 28, 2004.  The comments were taken into consideration in preparing this Final TMDL.

Complete Wabash River TMDL (includes all parts listed below)

Wabash River TMDL (without appendices)

There is no implementation information available at this time.