Iowa had twice the drinking water violations for nitrate in 2025 as in 2024

By: Cami Koons

Outlets: Iowa Capital Dispatch

Published: July 8, 2026

Words: 940

Last Updated: 1 week, 6 days ago

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A report from the Iowa Department of Natural Resources shows Iowa had 36 nitrate-related drinking water violations in 2025, which is more than double the number reported in 2024.

Each year, DNR submits a compliance report to the U.S. Environmental Protection Agency detailing violations of federal drinking water standards, from excessive contamination levels to operator certification requirements.

According to the 2025 report, nitrate contaminant levels above the EPA limit was the most …

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