Grading, Erosion, and Sediment Control (GESC) Permit
SEMSWA issues Grading, Erosion, and Sediment Control (GESC) permits within 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. For SEMSWA GESC Plan and Permit requirement matrix, please click here. 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 firstname.lastname@example.org. Click here if you’d like to know more about water quality requirements.
Standard GESC Permit Instructions
Refer to GESC Manual Section Reference for Additional Information
1. Apply for GESC permit
- Pickup approved GESC plans from SEMSWA
- Complete GESC Permit application and submit to Southeast Metro Stormwater Authority (SEMSWA) with Fees (2.14)
- 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.
- Install Initial BMPs in accordance with approved GESC Plans (5.3.1) (Must get City Public Works approval and submit the Development Permit (if applicable) prior to BMP installation).
- Schedule GESC Pre-Construction Meeting (5.3.3) with SEMSWA at 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)
4. GESC Permit Close-Out
- Initial Close-Out can be requested when all improvements are completed, and the site/area is stabilized. A Close Out Form should be submitted to request Initial Close Out.
- Schedule Initial Close-Out Acceptance Inspection (7.1.5)
5. Interim Between Initial Close-Out and Final Close-Out
- Provide GESC Inspections in accordance with the GESC Manual (7.3)
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 Final Close Out Inspection.
- 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)
Arapahoe County GESC
Permit Cover Sheet
Letter of Credit (LOC)
Close Out Form
Low Impact GESC Permit
GESC Standard Permit & Manager Form
Application for Review & Permit Fee Calculation
Application for Review and Approval
To be attached and completed for each submittal made to SEMSWA
Permit Fee Calculation
Click link to estimate the permit fees for your project
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