Total Maximum Daily Load, or TMDL, Water Body Record

Hinkson Creek
Established Jan. 28, 2011

The U.S. Environmental Protection Agency, or EPA, established the TMDL document for Hinkson Creek, WBIDs 1007 and 1008, in Boone County. 

303(d)-listed pollutants:

  • Unknown.

To address the listing for unknown pollutants:

Stormwater runoff was used as a surrogate for the unknown pollutants.  Reducing Stormwater flows will address the vast majority of the issues associated with the impairment and restore the aquatic life beneficial use.

Documents in this record:

  • Established Hinkson Creek TMDL.
  • EPA Hinkson Creek TMDL Questions and Answers.
  • Letter to Missouri - Letter from EPA transferring the established TMDL to Missouri.
  • Comments PN #1 - The department received several comment letters during the first public notice period for the TMDL, which was from Sept. 18 to Oct. 9, 2009.   This PN was cut short due to public comment indicating the need to revise the TMDL.  The PN had been scheduled to last through Oct. 18.
  • Request for extension - Dec. 18, 2009.  The department requested an extention of time of EPA for TMDL development and to allow for more public involvement.  EPA's response to the department's request is included in the .pdf.
  • Comments PN #2 - The TMDL was revised and placed on a 2nd public notice period from March 8 to April 22, 2010.  The department received many additional comments during this time. 
  • Sept. 15, 2010 - EPA assumed responsibility for the TMDL in order to establish it by Dec 31, 2010 to meet the terms of the Consent Decree.
  • Comments PN #3 - EPA received 11 comment letters during the third public notice period, which was from Oct. 29 to Dec. 1, 2010. This .pdf contains 10 of them.
  • Lathrop & Gage comments - Comment letter plus appendices (262 pages). 
  • Responses - Summary of comments and EPA's responses.
  • Hinkson Creek TMDL Information Sheet.