Stormwater Management


Stormwater Management


Stormwater management affects everyone in a community: residents, businesses and even the local government.

The public plays an active role in helping keep stormwater clean. The best way to protect our water sources through stormwater management is to limit what enters storm sewers and waterways. The public is warned against dumping anything but rainwater into storm sewers. Dumping hazardous materials into the storm drainage system is illegal.

The intent of the federal stormwater regulation is to improve water quality by reducing or eliminating contaminants in stormwater. Stormwater is defined as precipitation runoff, surface runoff and drainage, street runoff, and snow melt runoff.

Stormwater runoff from areas where industrial activities occur may contain toxics (for example, lead, zinc, etc.) and conventional pollutants such as oil and grease, fertilizers, sediment from construction sites, and other industrial site contaminants, when material management practices allow exposure to stormwater. In addition, illicit connections to storm sewers may also exist and introduce contaminants through storm sewer systems. Eventually these contaminants have the potential to effect additional downstream receiving waters. Contaminants introduced in stormwater runoff or into storm sewers may impact drinking water sources, waters protected for recreation, waters protected for aquatic life as well as other beneficial uses.


For additional resources on managing stormwater, visit the following resources:

Rainscaping Iowa

Iowa DNR

Environmental Protection Agency



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