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Water Quality

From drinking water to wastewater, and from wetlands to lakes, ensuring clean water is an important priority for Iowa.

  • Water Monitoring
  • Drinking Water
  • Water Quality Certification Programs
  • Wastewater Construction
  • Wastewater Permitting (NPDES)
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Water Quality Starts Here

  • Watershed Improvement

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Report a Spill

If in doubt, report it!

Quick reporting of hazardous spills is critical in providing the best emergency response. Call the Iowa DNR and local law enforcement right away.

Call our 24-hour line at 515-725-8694

Additional Spill Guidance

Water Quality News Releases

October 7, 2025

Check docks and equipment for invasive species before storing for the winter

The Iowa DNR reminds lake property owners to check their boat and trailers, and docks and lifts, for aquatic invasive species before winter storage.

Invasive Species
Boating
Fishing
October 7, 2025

Wait until after Oct. 15 to prune oak trees

The best way to prevent the spread of oak wilt is to not prune any oak tree during the growing season.

Forestry
October 7, 2025

Meadow Lake habitat project to begin soon

The Iowa DNR is launching a major habitat restoration effort at the Meadow Lake Wildlife Management Area (WMA) beginning this month.

Wildlife Management Areas
October 7, 2025

Outdoor options aplenty at Shell Rock Bend

Shell Rock Bend Wildlife Area, on the Butler-Bremer County line, offers great hunting for turkeys and deer, plus walleye and smallmouth bass fishing.

Wildlife Management Areas
Hunting
Fishing

Department of Natural Resources

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Iowa DNR Customer Service

6200 Park Avenue
Suite 200
Des Moines, IA 50321

Phone

515-725-8200

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