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💧 TapWaterData
#21 of 51A

Connecticut Water Quality

Connecticut ranks #21 out of 51 states for tap water quality with a score of 92.1 out of 100.

Based on 158 scored cities covering 96% of the state's served population.

Summary

Overall Score
92.1
out of 100
Cities Tested
158
cities
Cities w/ Violations
150
95% of cities
Avg Contaminants
3.4
above guidelines
Population
2.3M
people affected

Best Cities in Connecticut

Score: 100
Score: 100
Score: 100
Score: 100
Score: 100

Cities Needing Improvement

Score: 59.1
Score: 78.7
Score: 83.7
Score: 83.2
Score: 83.9

Cities listed have the lowest water quality scores in Connecticut.

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Frequently Asked Questions About Connecticut Water Quality

Connecticut ranks #21 out of 51 states and territories for water quality with a score of 92.1 out of 100 and a grade of A. A total of 158 cities were tested across the state.

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