[2019 AR] MS4s

2019 Report

Regulated Stormwater- MS4s

All Municipal Separate Storm Sewer Systems (MS4s) in the watershed have adopted stormwater regulations that set water quality requirements, consistent with Regulation 72 ,for construction and post-construction of new development and redevelopment projects within their jurisdictions. Further information on each MS4’s program can be found in their annual reports, due to the Division on March 10 (Phase II MS4s) and April 1 (Phase I MS4s).

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2019 Stormwater Permits, Inspections, and Enforcement Actions for Construction and Post-Construction Development

AgencyTotal Construction SitesConstruction InspectionsConstruction EnforcementsPermanent BMPsPermanent InspectionsPermanent Enforcements
Arapahoe County4450721030
Douglas County1,1277,2332381060
City of Aurora6855221000
SEMSWA (City of Centennial)78599515260
City of Greenwood Village13130*000
City of Lone Tree2540240
City of Castle Pines17160122*660
Town of Castle Rock1,6365,5891,05833190
Town of Parker1341,93239123060
CDOT300000

* Includes compliance inspections