Nine Mile Creek Watershed Chloride Total Maximum Daily Load Report

Nine Mile Creek is currently listed on the Minnesota Pollution Control Agency's (MPCA) 2008 303(d) Impaired Waters List because of chloride levels, as well as impaired biota due to low fish Index of Biotic Integrity (IBI) scores, and requires a Total Maximum Daily Load (TMDL) report. The creek was first listed on the MPCA's 303(d) list in 2004 after data indicated that Nine Mile Creek had chloride levels in excess of the MPCA's state water quality chronic standard of 230 milligrams per liter. Nine Mile Creek (AUID 07020012-518) is located in southwest Hennepin County in the lower portion of the Minnesota River Basin and the watershed covers an area of 44.5 square miles. The watershed is fully developed with various urban land uses, several large open space areas and numerous lakes and large wetland complexes.