Colorado Tap Water Quality: Is It Safe to Drink?
2026 EPA water quality data for 0 community water systems serving residents in Colorado. Find your water system to see violations, PFAS results, lead testing, and a safety grade — free.
Colorado draws drinking water from snowmelt-fed reservoirs, mountain streams, and the Denver Basin aquifer system. Uranium and radium occur naturally in some Front Range and Western Slope groundwater. Hard water is common across the state, with many areas exceeding 150 mg/L.
Find Your Water System in Colorado
Enter your ZIP code to see EPA violations, lead test results, PFAS data, and a safety grade for your water.
📊 Data from EPA’s SDWIS
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🔄 Updated quarterly
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🏛️ 0+ water systems in Colorado