Permit Resources

Online resources listed below are offered to help with preparing CRWD permits.

Minnesota Hydrology Guide
www.mn.nrcs.usda.gov/technical/eng/pdf/mhgweb.pdf

  • Runoff input parameters
  • Rainfall frequencies

Minnesota Stormwater Manual
stormwater.pca.state.mn.us/index.php?title=Main_Page

  • Runoff input parameters
  • Rainfall frequencies
  • Water-quality treatment methods
  • Approved water-quality models and approaches
  • Erosion-control BMPs

USDA Web Soil Survey
websoilsurvey.nrcs.usda.gov/app/HomePage.htm

  • Soil Information

USDA/NRCS Soil Loss Equation
www.mn.nrcs.usda.gov/technical/ecs/agron/RUSLE2/rusle2.html

  • Soil loss tolerance information

FEMA Flood Map Service Center
msc.fema.gov/portal/home

  • Floodplain and floodway locations

Minnesota Department of Natural Resources
www.dnr.state.mn.us/waters/index.html

Ordinary High Water Mark Elevations

www.dnr.state.mn.us/waters/surfacewater_section/hydrographics/ohw.html

Minnesota Pollution Control Agency – NPDES Permit
www.pca.state.mn.us/water/stormwater/stormwater-c.html

  • NPDES Permit Application
  • SWPPP Preparation