Stormwater Management

The City of Des Moines is a Medium Municipal Separate Storm Sewer System (MS4) regulated community under the State of Iowa Department of Natural Resources (IDNR) National Pollutant Discharge Elimination System (NPDES) permit. The city’s NPDES permit requires the city to create and coordinate programs that will improve water quality.

Stormwater Programs

Current stormwater programs include:


  • Public Education and Outreach
  • Illicit Discharge Detection and Elimination
  • Post-Construction Storm Water Management
  • Monitoring Industrial and High Risk Runoff
  • Public Involvement and Participation
  • Construction Site Storm Water Runoff Control
  • Pollution Prevention/Good Housekeeping