Storm Water Permits and Requirements

The following is from the University of Minnesota Standards & Procedures for Construction and current as of November 2002. Please check Storm Water Permits and Requirements - Page 2 #3.3 at http://www.cppm.umn.edu/standards/ProgramInfo.pdf for updated requirements.

3.3. Storm Water Permits and Requirements:

3.3.1. The A/E shall incorporate Minnesota Department of Transportation, City of Minneapolis, City of Duluth and Ramsey County Erosion and Sediment Control requirements and guidance into the construction specifications as applicable. At a minimum, the A/E shall identify temporary and permanent erosion and sediment control measures that are site specific.

3.3.2. Temporary controls include, but are not limited to, silt fences, storm inlet protection, entry/exit stabilization and site stabilization procedures for any exposed soil. Along with temporary controls, Environmental Protection Agency (EPA) Phase 2 Storm Water Rules require that all new development and redevelopment include permanent control measures to reduce storm water impact on receiving water to the maximum extent practicable (MEP).

3.3.3. Permanent controls are based on a goal of no net increase in storm water volume, rate or pollutant loads from new construction and redevelopment that add impervious surfaces. Permanent controls include, but are not limited to, vegetable swales, rain gardens, sediment ponds, retention areas, pervious surfaces and other alternatives to direct plumbing.

3.3.4. For regulatory permits, the Minnesota Pollution Control Agency (MPCA) requires a separate National Pollutant Discharge Elimination System (NPDES) construction permit for any construction site or common project that disturbs more than one acre. Like the EPA, this MPCA permit requires site-specific temporary and permanent erosion and sediment control plans to be incorporated into the project design. After confirming that the final construction specifications comply with MPCA temporary and permanent control requirements, the A/E shall complete a MPCA permit to be forwarded to DEHS for submittal to MPCA. For more information, contact DEHS, Air and Water Compliance, W140 Boynton, 410 Church St. SE, Minneapolis, MN 55455, http://www.dehs.umn.edu/ Guidance on storm water best management practices (BMP) can be found at http://www.pca.state.mn.us/water/pubs/sw-bmpmanual.html and at http://www.metrocouncil.org/environment/watershed/bmp/manual.htm