High Island Creek and Rush River - Fecal Coliform: TMDL Project

Minnesota's Impaired Waters and TMDLs


This TMDL addresses seven reaches of High Island Creek and Rush River located in south-central Minnesota. Water quality monitoring indicates these stream reaches fail to meet the standard for human contact due to excessive amounts of fecal coliform bacteria.

This TMDL project is being conducted by the Water Resources Center (WRC) at Minnesota State University, Mankato. Contributors include Sibley, Renville, McLeod, and Nicollet counties, the Minnesota Pollution Control Agency, the United States Geological Survey, and the Minnesota Department of Natural Resources.

The TMDL was approved by the EPA in November 2008, and a TMDL implementation plan was developed to address the fecal coliform bacteria impairments within the High Island Creek and Rush River watersheds. The plan provides a strategy of management and conservation practices necessary for the watersheds to reach water quality standards. Citizen involvement, education and outreach, and pollution prevention are key components of all TMDL implementation plans.

Map and location

The High Island and Rush River watersheds are located in the Lower Minnesota watershed, in south-central Minnesota. The watersheds cover 410,000 acres located across portions of McLeod, Nicollet, Renville, and Sibley counties. High Island Creek and Rush River outlet into the Minnesota River near Henderson, Minnesota. Land use in the High Island Creek and Rush River watersheds is dominated by agriculture at 84% and 90% respectively.

Map of HighIsland and Rush

TMDL report and implementation plan

Other documents

Information contact

For more information on the High Island Creek and Rush River fecal coliform bacteria TMDL project, contact:

  • Scott Matteson, MSU-Mankato, 507-389-5338
  • Scott MacLean, MPCA-Mankato, 507-389-5977