Used primarily by developers and builders, the Grading, Erosion and Sediment Control and Drainage, Erosion and Sediment Control Manual (commonly known as the GESC Manual) describes the permitting programs that have been adopted to promote environmentally sound construction practices in Castle Rock.

The goal of the program is to implement erosion and sediment control best management practices as a standard for all land-disturbance activities. The hope is to reduce increases in erosion and sedimentation over pre-development conditions. Erosion caused by construction and downstream sedimentation can damage property and degrade the quality of streams and lakes.

The links below enable you to view the entire manual or sections individually.