11 Rhode Island water districts with results read from their own annual water quality report or EPA testing, largest first.
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- Pawtucket Water Supply Board Veolia-Na98,130 people · 13 results
- Kent County Water Authority88,779 people · 16 results
- Warwick-City of73,289 people · 9 results
- East Providence-City of47,618 people · 9 results
- Woonsocket Water Division45,869 people · 14 results
- Newport-City of42,155 people · 19 results
- Westerly Water Department35,298 people · 10 results
- North Kingstown Town of25,200 people · 3 results
- Town of Cumberland21,235 people · 20 results
- University of Rhode Island19,354 people · 6 results
- Portsmouth Water & Fire District17,090 people · 14 results