Colorado Water Quality
Colorado ranks #32 out of 51 states for tap water quality with a score of 89.3 out of 100.
Based on 304 scored cities covering 99.9% of the state's served population.
Summary
Cities Needing Improvement
Cities listed have the lowest water quality scores in Colorado.
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Frequently Asked Questions About Colorado Water Quality
Colorado ranks #32 out of 51 states and territories for water quality with a score of 89.3 out of 100 and a grade of A. A total of 304 cities were tested across the state.
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