Nitrate levels in Iowa rivers and drinking water remained high through fall 2025, following a wet spring and near-record concentrations in summer. Des Moines Water Works reported elevated levels in central Iowas water sources, leading to a lawn watering ban. While the water treatment system hasnt been needed, the situation highlights the need for consistent water quality monitoring. Experts attribute the issue to precipitation, livestock operations, and fertilizer applications, suggesting that 2025s conditions may reflect more typical hydrologic conditions for Iowa. A unified call for better data and funding for monitoring systems has emerged, emphasizing the importance of accurate, accessible information for addressing Iowas long-term water quality challenges.
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