SEMSWA Grading, Erosion, and Sediment Control Manual
The Grading, Erosion, and Sediment Control (GESC) Manual, as amended, was adopted by the SEMSWA Board of Directors (Resolution 23-02) in January of 2023, effective February 17, 2023 for use within the City of Centennial portion of the SEMSWA Service Area. The current version replaces the June 2019 version. For additional information on the Arapahoe County GESC Manual, please click here.
The GESC Manual describes the program that has been adopted to promote environmentally-sound construction practices in the City of Centennial portion of the SEMSWA Service Area.
In addition to the Manual, SEMSWA provides this inspection/enforcement information for Contractors: Inspection/Escalation Enforcement Process Document
GESC Manual (complete)
GESC Manual (text only)
Appendix A: GESC Contact Information
Appendix B: Early Grading Form Letter
Appendix C: Engineers Cost Estimate
Appendix D: Example Single Family Lot Plans
Appendix E: GESC Plan and Report Checklist
Appendix F: GESC Plan Standard Notes and Details
Appendix G: Control Measures Legend and Approval Block
Appendix H: Definitions
GESC Process Matrix
Most Popular Pages
For Park, Metro Dist. & HOA Maint.
Information For Businesses
- GESC Considerations for Pipe Relining Operations
- GESC Considerations for Minor Right of Way/Streetscape Construction
- GESC Considerations for Minor Commercial Construction
- Annual Bore Utility Permits
- Land Development Review Process Explained
- Am I in the Floodplain?
- Working in the Floodplain
- Maintaining your pond or other stormwater feature
- Grant Program
- Pollution Prevention