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TMDLs (City)

Total Maximum Daily Load (TMDL)
Section 303(d) of the Clean Water Act (CWA) requires states to develop a list of waters not meeting water quality standards or which have impaired uses. This list, referred to as the 303(d) list, is submitted biennially to the U.S. Environmental Protection Agency (EPA) for review. The 303(d) process requires that a TMDL be developed for each of the waters appearing on Part I of the 303(d) list. The objective of a TMDL is to allocate allowable pollutant loads to known sources so that actions may be taken to restore the water to its intended uses (EPA 1991).

Fecal Coliform
Nearly 70 miles of streams in Charlotte have been 303(d) listed for impairment due to fecal coliform pollution and a Total Maximum Daily Load (TMDL) has been developed to address fecal coliform pollution in the following streams:

TMDL chart

TMDL chart for Long Creek
It is estimated that fecal coliform enters these streams from a variety of sources.
  • NPDES Permitted Discharges including several waste water treatment plants
  • Sanitary Sewer Overflows
  • Storm water runoff
  • Failing septic systems
  • Dry weather flow from storm drains
  • Wildlife
  • Exfiltration from sanitary sewer pipes

The Fecal Coliform TMDL for Sugar, Little Sugar and McAlpine Creeks was finalized and formally accepted February 2002. A copy of the full document can be found on the NC Division of Water Quality website.

Turbidity
Approximately 64 miles of streams in Charlotte have been 303(d) listed for impairment due to turbidity and a Total Maximum Daily Load (TMDL) has been developed to address turbidity in the following streams:

It is estimated that turbidity in these streams is from a variety of sources.

  • Land Development
  • Urban Runoff/Storm Drainage
  • Municipal Point Sources
  • Agriculture

The Turbidity TMDL for Long, McAlpine, Sugar, Little Sugar, and Irwin Creeks was finalized and formally accepted January 2005. A copy of the full document can be found on the NC Division of Water Quality website.

For more information, contact City of Charlotte Water Quality Team Leader Marc Recktenwald at
704-336-3122.