Stormwater for Single-Family Lots

What you need to submit to the County:

  1. Summary page of the proposed stormwater management approach;
  2. Site plan / drawing showing the location of the stormwater system;
  3. Include the dimensions of each low impact development stormwater management facility on the site plan;
  4. Soils Printout
  5. Calculations sheets
  6. Completed Certification Form after the system is constructed.

"Stormwater Management System (SMS) - A system that is designed and constructed or implemented to control discharges which are necessitated by rainfall events, incorporating methods to collect, convey, store, absorb, inhibit, treat, use, or reuse water to prevent or reduce flooding, over drainage, environmental degradation, and water pollution or otherwise affect the quantity and quality of discharges from the system."

Do I need a Stormwater Management Plan for my Single Family Residential Lot

To determine whether or not you need to provide a stormwater management plan for your single famliy lot, click on the arrow to open or close the branches to find out.

  • Is this a small residential project of 5 acres or less?
    • No
      • Does not Apply
    • Yes
      • Stormwater Management Plan Required
  • Does your neighborhood have an existing approved stormwater management plan?
    • No
      • Stormwater Management Plan Required
    • Yes
      • Does not Apply
  • Does your project create more than 3% or 250sqft (whichever is greater? of new impervious area?
    • No
      • Does not Apply
    • Yes
      • Stormwater Management Plan Required