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Stormwater Management and Planning Chapter 1
The CWQCD administers and enforces the requirements of the CDPS stormwater program, generally
including these general permit categories:
• Municipal: CDPS General Permit for Stormwater Discharges Associated with Municipal Separate
Storm Sewer Systems (MS4s) (Permit No. COR-090000). The CWQCD has issued three municipal
general permits:
1. A permit for MS4s within the Cherry Creek Reservoir Basin,
2. A permit for other MS4s statewide, and
3. A permit specifically for non-standard MS4s. (Non-standard MS4s are publicly owned systems
for facilities that are similar to a municipality, such as military bases and large education, hospital
or prison complexes.)
• Construction: CDPS General Permit for Stormwater Discharges Associated with Construction
Activity (Permit No. COR-030000).
• Industrial: CDPS General Permits are available for light industry, heavy industry, metal mining,
sand and gravel, coal mining and the recycling industries.
The Phase II municipal MS4 permits require implementation of six minimum control measures (MCM):
1. Public education and outreach on stormwater impacts
2. Public involvement/participation
3. Illicit connections and discharge detection and elimination
4. Construction site stormwater management
5. Post-construction stormwater management in new development and redevelopment
6. Pollution prevention/good housekeeping for municipal operations
This manual provides guidance to address some of the requirements for measures 4, 5, and 6.
Resources for More Information on Colorado's Stormwater Regulations
CDPHE Stormwater Permitting Website: http://www.cdphe.state.co.us/wq/permitsunit/
CDPHE Regulation No. 61 Colorado Discharge Permit System Regulations:
http://www.cdphe.state.co.us/regulations/wqccregs/100261dischargepermitsystem.pdf
Colorado's Stormwater Program Fact Sheet:
http://www.cdphe.state.co.us/wq/PermitsUnit/POLICYGUIDANCEFACTSHEETS/factsheets/SWFac
tsheet.pdf
1-8 Urban Drainage and Flood Control District August 2011
Urban Storm Drainage Criteria Manual Volume 3