Stormwater Division

Post Construction Program

The City of Cañon City’s post-construction program encompasses permanent structural Best Management Practices (BMPs) which function to control stormwater runoff quantity and improve runoff quality once site construction is completed.  Permanent structural BMPs can include detention basins, retention ponds, drainage channels, grass swales, porous landscape detention (PLD), permeable pavement, oil/water separators and sand trap filters.

Through our State stormwater permit, the City of Cañon City is required to implement planning and enforcement procedures to reduce stormwater impacts resulting from areas of new development and significant redevelopment by meeting the following elements:

  1. Establish a regulatory mechanism that requires any development projects disturbing one or more acres, and those that disturb less than one acre but are part of a larger common plan of development, incorporate stormwater management BMPs.
  2. Develop design criteria and standards for the selection and design of appropriate structural and non-structural BMPs.
  3. Develop review and approval procedures for the BMPs which include plan review and field verification.
  4. Develop a tracking system of permanent structural BMPs.
  5. Establish long-term operation and maintenance requirements.
  6. Monitoring and enforcement of long-term compliance.

The City of Cañon City has met these requirements through Ordinance No. 20 – 2005 and our Grading, Erosion and Sediment Control plan.  Stormwater Program staff keeps a database of all permanent BMPs, both publicly- and privately-owned.  Inspections are conducted on all BMPs annually and custodians are notified in writing of any deficiencies noted.  Inspections look at various aspects of the BMP, including vegetation, structural integrity, erosion, trash and debris, burrowing animals and vandalism.  If maintenance is required it is noted in the inspection letter sent to the custodian.  Follow-up inspections are conducted to ensure maintenance has been completed.  If it has not been done, the City may take corrective action.

Click on the following links for more information on BMPs and suggestions for care and maintenance.

BMPs
GESC Manual; Appendix E – Structural Best Management Practices
Urban Drainage and Flood Control District – Urban Storm Drainage Criteria Manual Volume 3; BMPs

BMP Care and Maintenance
Maintaining Detention Ponds

Maintaining Stormwater Facilities

Contech CDS Operations and Maintenance Guide
Nyloplast Water Quality
Stormceptor Inspection & Maintenance
Stormceptor Manual
Flexstorm Inlet Filters