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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)
  • Private Well Program

Water Quality Starts Here

  • Watershed Improvement

  • Private Sewage Disposal & Septage

  • Nutrient Reduction Strategy

  • Beach Monitoring Dashboard

  • Water Supply Engineering

  • Water Summary Update

Water Quality Permits & Forms

  • Drinking Water Compliance Forms

  • NPDES General Permits

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Water Quality Additional Resources

  • Find an Environmental Field Office

  • Programs & Services

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  • Open Records Request

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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

June 25, 2026

Reminder - New Air Quality Fee Schedule Starts July 1

A new air quality fee schedule becomes effective beginning July 1, 2026.

Air Quality
June 25, 2026

Water use permits for review, published 06/25/2026

The DNR Water Quality Bureau has the following draft water use permits posted for public review

Water Use Permits
June 24, 2026

Iowa archers place at the 2026 NASP Championship

Iowa archers competed in the National Archery in Schools Program (NASP) Championship, June 18-20, in Daytona Beach, Florida.

Archery
June 24, 2026

Help stop aquatic hitchhikers this Fourth of July weekend

The Iowa DNR reminds all boaters and anglers to check for unwanted hitchhikers on their boats and equipment this Fourth of July to help protect Iowa waters.

News - Featured
Boating

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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