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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

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Water Quality Permits & Forms

  • Drinking Water Compliance Forms

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Water Quality Additional Resources

  • Find an Environmental Field Office

  • Programs & Services

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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

April 14, 2026

Public Meeting to discuss Arbor Lake and Lake Nyanza Water Quality Improvement Plan

GRINNELL – Iowa DNR and the City of Grinnell will host a public meeting at 5:30 p.m., May 5th, at the Drake Community Library in Grinnell.

Lake Restoration Program
April 14, 2026

Grants available for community tree plantings this fall

Through the USDA Forest Service Inflation Reduction Act, the Iowa Department of Natural Resources (DNR) received funds for tree planting grants for communities.

Forestry
April 14, 2026

Stay safe paddling this spring season

Spring paddling can provide solitude, exercise and an opportunity to see amazing wildlife and blossoming nature. Extra precautions are needed to stay safe.

News - Featured
Canoe, Kayak & Paddle Sports
April 14, 2026

Get your boat ready for the spring boating season

It is time to get your boat ready for fun on the water with family and friends. Follow these simple tips to ensure your boat is safe and running smoothly.

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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