Total Maximum Daily Load Program

Mississippi’s TMDL program, a branch of the Surface Water Division, is responsible for developing TMDLs. A TMDL reports the acceptable amount of a specific pollutant a stream can handle without a violation of water quality standards. The identification of water bodies not meeting their designated use and the development of total maximum daily loads (TMDLs) for those water bodies are required by Section 303(d) of the Clean Water Act.

303(d)List of Impaired Water Bodies

Section 303(d) of the Clean Water Act requires the state to identify water bodies that do not meet one or more applicable water quality standards and for which TMDLs are needed. Mississippi’s Section 303(d) List of Impaired Water Bodies identifies impaired water bodies and establishes a priority ranking for such waters, taking into account the severity of the pollution and the uses to be made of the water bodies. The Section 303(d) listing requirement applies to water bodies impaired by point and nonpoint sources.

The Draft 2018 Section 303(d) List of Impaired Water Bodies is available for public comment and review.  The public notice began April 10, 2018 and will end May 15, 2018.  Comments will be accepted by mail or electronic submission until 5:00 p.m. on May 15, 2018.  Additionally, a public hearing will be held to receive comments on the draft list on May 15, 2018 at 3:00 p.m. in the MDEQ Commission Hearing Room at 515 Amite Street, Jackson, MS.

The 2016 Section 303(d) List of Impaired Water Bodies was adopted by the Mississippi Commission on Environmental Quality on June 23, 2016 memorialized in Order no. 6659 16 on June 24, 2016. The public notice period began February 9, 2016 and ended on March 30, 2016. A public hearing was held to receive comments from the public on this draft list on March 14, 2016 at 3:00 p.m. in the MDEQ Commission Hearing Room at 515 Amite Street, Jackson, MS. The public notice period was extended by 15 days per request received at the public hearing. The 2016 Section 303(d) List of Impaired Water Bodies will take effect 30 days from the Order date unless an evidentiary hearing is requested by an interested party within that 30-day period.

Contact Information

Mississippi Department of Environmental Quality
P.O. Box 2261
Jackson, MS 39225