What Is Stormwater?

Stormwater is the flow of water that results from precipitation which occurs immediately following rainfall or snowmelt.

In addition to our website, you can learn more about stormwater by visiting the North Carolina Department of Environment and Natural Resources website on Stormwater and Runoff Pollution.

The Piedmont Triad Water Quality Partnership

The Piedmont Triad Water Quality Partnership (PTWQP) is a collaboration of 18 local governments in the Piedmont Triad Region of North Carolina, including Clemmons, working together to educate residents about stormwater and water quality issues.

The Total Maximum Daily Load

The Total Maximum Daily Load (TMDL) Program is a Federal program authorized under the Clean Water Act to address waters that do not meet water quality standards. Muddy Creek is considered impaired for its uses. To achieve a reduction in Toxic Shock Syndrome (TSS) and turbidity (sediment). Clemmons has developed a plan which outlines steps to take in public education and outreach, monitoring, assessment, and reporting.

How Is Total Maximum Daily Load Calculated?

A TMDL is a calculation of the maximum amount of a pollutant that a waterbody can receive and still meet water quality standards. The TMDL is then used to establish limits on sources of the pollutant which are classified as either point sources or non-point sources. A point source is a pollutant that comes from a single, identifiable source such as a factory. 

Non-point source pollution comes from many different sources and is caused by rainfall or snowmelt moving over the ground. As the runoff moves, it picks up and carries away natural and human-made pollutants, finally depositing them in lakes, rivers, wetlands, coastal waters and even underground sources of drinking water.

The TMDL load allocation is calculated for all non-point sources that are contributing to the pollution. Depending on the sources identified in the TMDL, the load allocation may apply to septic tanks, fertilizer runoff from agricultural and residential areas, bacteria or sediment runoff from new construction sites. 


The TMDL does not have authority in most cases to force a reduction of pollutants from non-point sources. TMDLs are usually only effective at addressing non-point sources when enough interest is present from the community, local government and water quality advocacy groups to carry out the implementation plan.