Missouri's 303(d) Streams and Lakes

Section 303(d) of the federal Clean Water Act requires that each state identify waters that are not meeting water quality standards and for which adequate water pollution controls have not been required. Water quality standards protect such beneficial uses of water as whole body contact (such as swimming), maintaining fish and other aquatic life, and providing drinking water for people, livestock and wildlife. The 303(d) list helps state and federal agencies keep track of waters that are impaired but not addressed by normal water pollution control programs.

2008 303(d) List Information
Final Methodology for the Development of the 2008 Section 303(d) List for Missouri PDF
Approved by the Clean Water Commission on Jan. 9, 2008.

2004/2006 303(d) List Information

303(d) List Approved by the Clean Water Commission on April 20, 2007 PDF
 

This list was submitted to the U.S. Environmental Protection Agency for approval.  EPA may choose to modify the list. EPA’s approved list becomes the final 303(d) List. Missouri will then use the list to develop Total Maximum Daily Loads and work on those waters until the 2008 303(d) is completed.

Sept. 27, 2007 Letter from EPA Partially Approving 2004/2006 303(d) List PDF
Enclosure to Sept. 27 Letter PDF

Water Quality Information Sheets
These worksheets include the water quality data for streams and lakes proposed for listing or delisting, a statistical analysis of the data and the rationale for the department's recommendation. You may choose to download all of the available files in one of the Zip files below or download the individual files from the links listed in the table below in either Microsoft® Excel® or Adobe® PDF.
 
303(d) List/ Water Quality Monitoring Issues Advisory Group
  This group will assist the department in identifying the best approach to finalizing the next 303(d) list and in closing the gap on statewide monitoring needs. The group will also recommend a strategy to achieve and maintain timely submittals of 303(d) lists to the U.S. Environmental Protection Agency.

Final Methodology for the Development of the Section 2006 303(d) List for Missouri PDF

Final 2002 303(d) List Information

Map of 2002 303(d) List - This interactive map shows information pertaining to each of the

 

303(d) listed waters.

2002 303(d) List PDF

Print version of map of 2002 303(d) List PDF

The Environmental Protection Agency has reviewed Missouri's proposed 2002 303(d) List of impaired waters. EPA partially approved and partially disapproved the state's 2002 303(d) List.

EPA Letter to Missouri
EPA 303d Responsiveness Summary to Public Comments (includes the 303d list and supporting information)

Final 1998 303(d) List Information

1998 303(d) List

Print version of map of 1998 303(d) List PDF