Stormwater

Learn About Stormwater:

As the Town of Clayton experiences population growth, accompanied by expanded development encompassing residential areas, commercial establishments, pathways and parking lots, the cumulative impact results in an increase in impervious surfaces. In the absence of an alternative route, stormwater traverses these surfaces, becoming a carrier of these diverse pollutants. These pollutants are subsequently funneled directly into our streams and rivers. The ramifications of this extend beyond our immediate environment, potentially affecting wildlife not only within our local streams but also inhabiting larger river systems and even reaching the Atlantic Ocean.

What is Stormwater?

Stormwater comprises various forms of water runoff, including rainfall and irrigation from sources like lawn sprinklers. In the context of the Town of Clayton, it ultimately finds its way into the Neuse River and its associated tributaries.

Identifying Common Pollutants and Their Sources:

Numerous pollutants can enter our waterways, originating from various sources. These pollutants include:

  • Sediment: Often caused by improper bank maintenance or lack of vegetation
  • Nitrogen: Primarily derived from animal waste and fertilizer usage
  • Phosphorus: Frequently associated with household products 
  • Oil: Typically generated by vehicles and machinery 

Distinguishing Various Stormwater Infrastructure Types:

  • Bioretention Pond: A recessed area in the ground, with or without vegetation, designed for stormwater management.
    • Key Structures: Includes inflow/outflow pipes, an overflow riser and a trash rack. 
  • Wetland: Resembles a bioretention pond but features a permanent pool. Both wetlands and bioretention ponds should be adorned with native plantings and regularly maintained to prevent the proliferation of invasive cattails, which provide favorable breeding grounds for mosquitoes.
  • Wet Pond: Shares similarities with a wetland but has reduced retention requirements.
  • Permeable Pavement: Exhibits various forms designed to facilitate the infiltration of stormwater. 
  • Green Roof: Encompasses rooftop vegetation that can absorb rainfall, thereby reducing the volume of stormwater runoff.