Drinking Water

DC WASA is committed to providing customers with the highest-quality drinking water by first ensuring that the water we deliver to you meets or surpasses federal Safe Drinking Water Act standards, and secondly, by providing you with the most reliable service possible.

Water is treated at the Washington Aqueduct treatment plants. We collect water samples continuously to ensure that the water leaving the plant meets EPA standards. In addition, DC WASA collects tap water samples throughout Washington, D.C., on a daily basis and analyzes the samples immediately on site and at our distribution laboratory.

If you have any questions about the quality of your drinking water, please call the DC WASA Water Quality Department at 202-612-3440.

Water Quality News & Updates

Recent news and updates on water quality and drinking water treatment in the District of Columbia. Find press releases, publications, and new resources about a variety of drinking water quality issues.

Date Title Type Size
Jan 11, 2010 Washington Aqueduct Announces Temporary Disinfectant Change PDF 125 KB
Jan 11, 2010 Frequently Asked Questions: Temporary Disinfectant Change PDF 38 KB
Dec 14, 2009 DC WASA is Notified of Change in Water Treatment Disinfection PDF 27 KB
Dec 14, 2009 Frequently Asked Questions: Change in Water Treatment Disinfection PDF 33 KB
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Drinking Water Quality Avatar - New Interactive Tool

The water quality avatar is a new, fun approach for educating our customers and answering common questions about drinking water. Meet our avatar Trish and hear the answers to your most important questions about drinking water quality in the city and in your home.

Click here to open the Water Quality Information Portal!

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