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District of Columbia

District of Columbia Water Quality

Tap water quality data for 1 cities and their water systems

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D.c.

Utility serves 632K

LeadBelow limit

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Free tap water quality reports for US cities based on EPA SDWIS data and USGS water quality measurements. Understand your local water quality including hardness, lead levels, and violation history.

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Resources

EPA Standards
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2026 TapWater.org · Data sourced from EPA SDWIS and USGS

This information is for educational purposes only and should not replace official water quality reports from your local utility. Water quality can vary by neighborhood and over time. For the most current information, contact your local water provider.