Business Licenses
New Development Review and Approval
The first program component requires new development to reduce nitrogen export by 30%, maintain predevelopment runoff flows and protect existing riparian buffers. Reducing nitrogen export and peak runoff flows is achieved by using less impervious surface and by installing stormwater best management practices (BMPs) such as retention ponds, constructed wetlands and bioretention. BMPs must be inspected annually by City staff to ensure proper function.
This program component addresses both water quality and quantity. Water quality is preserved by reducing nitrogen pollution which causes algal blooms, oxygen depletion and fish kills. Maintaining predevelopment peak runoff flows control water quantity and protect water quality by reducing stream erosion. Erosion leads to suspended sediment in the water which can kill aquatic life and transport bound pollutants. Sediment also increases the cost of drinking water treatment and increases flooding by reducing channel carrying capacity. Maintaining existing riparian buffers protects water quality by filtering stormwater runoff pollutants and reducing erosion. The erosion control of riparian buffers also reduces water quantity concerns by preventing sediment from reducing channel carrying capacity.
Stormwater Management Policy & Design Criteria
Forms used for calculations
Download forms used for calculations below.
Downloads
Stormwater Utility - Per Account Billing Application Package (84 KB) Equivalent Residential Unit as the Basis for Stormwater Fees in Wilson, NC (60 KB) Example of Neuse Calculations for Redevelopment on Site w/ Existing Impervious (50 KB)