Stormwater Best Management Practices

Stormwater Best Management Practices (BMPs) are implemented as a way of limiting and treating pollutants and other damaging effects of stormwater runoff in order to meet legislative and North Carolina Administrative Code requirements.

Categories of BMPs
There are 2 major categories of BMPs:
  • Non-structural
  • Structural
A plot of dirt surrounded by grass and holding several small trees.

Non-Structural BMPs


Non-structural BMPs reduce pollution in runoff by reducing the opportunity for the stormwater runoff to be exposed to pollutants.  These practices are typically passive or programmatic and focus on reducing stormwater pollution at the source.

Structural BMPs


Structural BMPs are physical structures requiring engineering design and engineered construction to remove pollutants from stormwater runoff.  They also provide flood control, reduce downstream erosion, and promote groundwater recharge.  Apex currently has over 280 structural stormwater (BMPs) to help treat stormwater. Most are installed with development or re-development projects including many residential neighborhoods. Some are installed as part of Town projects. 

Every stormwater BMP is required to be inspected on an annual basis to ensure it is operating as designed. The BMP owners (including Homeowner Associations) are responsible for all inspections and for the continued operation and maintenance of the BMP.

Section 6.1 of the Town Unified Development Ordinance (UDO) discusses other town stormwater regulations.