Grading, Erosion, and Sediment Control (GESC) Permit
General Information
SEMSWA issues Grading, Erosion, and Sediment Control (GESC) permits within the City of Centennial and unincorporated Arapahoe County for all disturbances outlined in the GESC Manual. These permits are typically issued in association with new development, redevelopment, or utility projects. If you think you need a permit, please call SEMSWA at 303-858-8844 and ask to speak with one of the GESC engineers, or email us at semswamain@semswa.org. Click here if you'd like to know more about water quality requirements.
Refer to GESC Manual Section Reference for Additional Information
1. Apply for GESC permit
Pickup approved GESC plans, a copy of the GESC Field Manual, Permitting Instruction Packet (2.13)
Complete GESC Permit application and submit to Southeast Metro Stormwater Authority (SEMSWA) with Fees (2.14)
NOTE: A GESC permit is included in this packet and can be obtained from SEMSWA
Provide GESC permit fee due with GESC Permit Application
Provide Collateral with the GESC Permit Application (2.16)
2. Prior to GESC Permit Approval
Designate a GESC Manager and Alternate GESC Manager
NOTE: A GESC MANAGER MUST BE DESIGNATED PRIOR TO THE PRE-CONSTRUCTION MEETING. THE GESC MANAGER DESIGNATION FORM SHALL BE SUBMITTED TO SEMSWA AT THE PRE-CONSTRUCTION MEETING.
Review GESC Field Manual, GESC Plans, and related plans and permits (5.2.3)
Install Initial BMPs in accordance with approved GESC Plans (5.3.1)
Schedule GESC Pre-Construction Meeting (5.3.3) with SEMSWA
Contact: Dan Olsen - 303.858.8844
3. Throughout Duration of GESC Permit
Provide regular GESC inspections in accordance with the GESC Manual
Ensure proper installation and maintenance of BMPs as required within the GESC Manual (5.7, 5.8)
NOTE: THE GESC MANAGER WILL BE REQUIRED TO CERTIFY ALL REQUIRED GESC INSPECTIONS AT BOTH THE INITIAL CLOSE-OUT ACCEPTANCE AND FINAL CLOSE-OUT ACCEPTANCE.
4. GESC Permit Close-Out
Initial Close-Out can be requested when all improvements are completed, and the site/area is stabilized with permanent BMPs
Initial Close-Out is initiated by the GESC Manager by completing the Initial Close-Out Acceptance Form and attaching the following certifications: Seeding and Mulching Certification, Topsoil Certification, Initial Close-Out GESC Inspection Certification, Detention / Water Quality Pond Statement, Copy of Probationary Acceptance of Public Improvements Letter (7.1.1-7.1.4).
Upon acceptance of the Initial Close-Out Acceptance Form, Certifications, and Inspection, SEMSWA will grant Initial Close-Out and the Permittee is eligble for the original Collateral Reduction Letter (7.2.5)
5. Interim Between Initial Close-Out and Final Close-Out
Provide GESC Inspections in accordance with the GESC Manual (7.3)
NOTE: THE GESC MANAGER WILL BE REQUIRED TO CERTIFY ALL REQUIRED GESC INSPECTIONS AT BOTH THE INITIAL CLOSE-OUT ACCEPTANCE AND FINAL CLOSE-OUT ACCEPTANCE.
6. Final Close-Out
Once the entire project has reached the required vegetative coverage, in accordance with Section 7.3, the Permittee shall call SEMSWA to schedule a Vegetation Acceptance Inspection (7.4.1)
SEMSWA will confirm that the vegetation has met the required coverage and that noxious weeds have been controlled (7.4.2)
If the required coverage has been met, SEMSWA will approve the Vegetation Acceptance Form and give the Permittee(s) instruction to remove the remaining onsite BMPs (7.4.2)
After approval from SEMSWA, the remaining on-site BMPs shall be removed and the remainder of the site shall be cleaned up and any areas disturbed as a result of the BMP removal shall be seeded and mulched (7.4.3)
Final Close-Out is initiated by the GES Manager completing the Final Close-Out Acceptance Form and attaching the following certifications: Final Close-Out GESC Inspection Certification, Vegetation Acceptance, Copy of Final Acceptance of Public Improvements, Detention / Water Quality Pond Statement (7.4.4)
Schedule Final Close-Out Acceptance Inspection (7.4.5)
Once Final Close-Out Acceptance has been granted, SEMSWA will approve the Final Close-Out Acceptance form and collateral for the project will be released (7.5)
The Certification Forms for Initial & Final Close-Out Acceptance are contained within this packet. Please keep these forms until the project is ready for Initial Close-Out Acceptance and/or Final Close-Out Acceptance.