Douglas County Unincorporated
City Zoning Code

To control non-point-source pollution and protect water quality by requiring soil erosion and sediment control practices that comply with the provisions of the Grading, Erosion and Sediment Control (GESC) Manual, as amended. The GESC Manual, as amended, implements the provisions of the GESC Permit Program and the Drainage, Erosion, and Sediment Control (DESC) Permit Program. The GESC Manual, as amended, is hereby incorporated by reference.

The development, implementation, and enforcement of the Douglas County GESC and DESC Permit Programs are mandated by the terms of the National Pollutant Discharge Elimination System (NPDES) Stormwater Regulations (40 CFR 122.26) of the Federal Clean Water Act,[1] the Colorado Discharge Permit System (CDPS) Regulation No. 61, the Cherry Creek Reservoir Control Regulation No. 72, and the Chatfield Reservoir Control Regulation No. 73. The overall purpose of these regulations is to reduce the amount of pollutants entering streams, lakes, and rivers as the result of stormwater runoff from residential, commercial, and industrial areas.