Reduction Credits

Summary of Reduction Credits Available
Property Type Total Percent (%) Reduction* in Impervious Area Fee Type of Impervious Area Treated by Best Management Practice or Environmental Site Design Percent (%) Reduction*
Single-Family Residential, Multi-Family (Apartments), or Condominium Properties
Up to 100%
Driveway or Parking Lot
All ‘Other’ Impervious Areas (sidewalks, sheds, patios, pool decks, etc.)
Up to 40%
Up to 50%
Up to 10%
Non-Residential (Commercial, Industrial, Institutional) Up to 100% Roof
Driveway/Parking Lot
Green Lawn
Older Legacy Pond
Up to 25%

Up to 45%
Up to 5%
15-25% Depending Upon Year Installed -
Determined by County
*Clean Water Act Fee reduction credits apply only to the Impervious Area Fee; the Administrative Fee of $20.58 per tax account per year still applies.