The drainage checklists were formulated from chapter 4 of the stormwater management manual.

Please utilize these checklists while preparing your Construction Drawings. Thank you.

The Permanent CM Standard Details below shall be used to comply with the criteria in the Stormwater Management Manual.  

If your project requires multiple SEMSWA permits, they will all be issued simultaneously.

SEMSWA is a referral agency that provides stormwater management services to the City of Centennial (City). As a part of these services SEMSWA reviews plans, reports and associated documents for land development and Capital Improvement projects for compliance with the City’s established stormwater management criteria. SEMSWA also issues permits for: 1) construction disturbances in the City; 2) the…

SEMSWA is the final approval agency for the GESC plans and report, the Phase III Drainage Report/ Drainage Letter of Conformance and all Floodplain documents. We will also comment on the Construction Drawings, Easements, Operations and Maintenance Manuals etc. Our office will handle the recordation of the necessary documents and charge fees accordingly.