City Of Greeley

Post-Construction Stormwater Management in New Development and Redevelopment (PCSM)

Minimum Control Measure #5
Program Objectives

The development or redevelopment of land areas can significantly affect the quantity and quality of stormwater runoff. Changing the topography or replacing natural ground cover with impervious surfaces can increase the volume of runoff and significantly increase peak runoff rates. The increase in volume and peak runoff rates can accelerate erosion rates in local stream channels and rivers and increase the risk of flooding in adjacent low-lying areas. Changes in land use can lead to the introduction of new pollutants, such as gasoline, oil, grease, fertilizer, household chemicals, etc, to local water bodies like detention ponds. Left unchecked these pollutants can migrate into the City's Stormwater Drainage System and eventually into local receiving waters like Poudre and South Platte Rivers, reducing the quality of the receiving water.

The objectives of the City of Greeley's Post-Construction Stormwater Management (PCSM) program center on the effective design, installation, operation and maintenance of post-construction water quality BMPs. The general objectives of the PCSM program include the following:
  • Meet the post-construction water quality requirements for coverage under the Colorado Discharge Permit System (CDPS) General Permit for the City of Greeley.
  • Promote proper and consistent design, review, installation, inspection, and maintenance of water quality BMPs at newly developed or redeveloped sites throughout the City of Greeley.
  • To the maximum extent practicable, control the discharge of stormwater and reduce the discharge of pollutants from newly developed or redeveloped sites.
  • To the maximum extent practicable, improve the quality of stormwater as it moves through the City's Stormwater Drainage System.
  • Educate local designers, contractors, water quality BMP owners (private owners, businesses, homeowners associations, etc.) on the importance of the proper design, installation, operation, and maintenance of water quality BMPs.