Stormwater Management


Clean H2Owatonna

"Clean H2Owatonna" is the City of Owatonna’s Stormwater Management Program to keep our streams, river, and waterways clean of pollution.

What is Stormwater?

Stormwater is water from rain or melting snow that does not soak into the ground. Instead, it flows from rooftops, across paved areas, and through sloped lawns. As stormwater moves across these surfaces, it can pick up and carry along pollutants such as: 

  • Chemicals
  • Grease and Oil
  • Bacteria and Pathogens
  • Sediment and Debris
  • Yard Waste
  • Pet Waste
  • Fertilizers

We are situated in the Cannon River Watershed. All stormwater enters our community storm system and eventually flows to:

  • Crane Creek
  • Maple Creek
  • Willow Creek
  • Straight River

From the Straight River it makes way to:

  • Cannon River
  • Mississippi River

Municipal Separate Storm Sewer System (MS4) Program

Our community is governed by the Minnesota Pollution Control Agency through a National Pollutant Discharge Elimination System (NPDES) Permit called MS4 Permit

Helpful Information

2019 Stormwater Utility Fees (PDF)