Rhode Island tap water, by utility.
28 utilities with a full report, serving 1 million people as they report it. Regulated PFAS turned up at 10 of them.
All 28, by people served
| Utility | Based in | Serves | Regulated PFAS | Health-based violations since 2016 |
|---|---|---|---|---|
| City of Providence - | Cranston | 333,142 | None found | 1 |
| Pawtucket Water Supply Board Veolia - Na | Cumberland | 98,130 | None found | 0 |
| Kent County Water Authority | Coventry | 94,107 | PFOA, PFBS | 0 |
| City of Warwick - | Warwick | 73,289 | None found | 0 |
| Bristol County Water Authority | Barrington | 49,000 | None found | 0 |
| City of East Providence - | East Providence | 47,618 | None found | 3 |
| Woonsocket Water Division | Woonsocket | 45,828 | PFOA | 1 |
| City of Newport - | Middletown | 42,155 | None found | 0 |
| Westerly Water Department | Westerly | 35,298 | PFOA, PFOS, PFBS | 0 |
| Town of North Kingstown | North Kingstown | 27,732 | PFOA, PFOS, PFHxS, PFBS | 0 |
| Veolia Water Wakefield Rhode Island Inc | South Kingstown | 22,347 | None found | 6 |
| Lincoln Water Commission | Lincoln | 21,664 | None found | 0 |
| Town of Cumberland | Cumberland | 21,235 | PFOA, PFOS, PFBS | 0 |
| University of Rhode Island | South Kingstown | 19,354 | PFOA, PFOS, PFHxS, PFNA, PFBS | 0 |
| Portsmouth Water & Fire District | Portsmouth | 17,090 | None found | 3 |
| Block Island Water Company | New Shoreham | 9,999 | None found | 0 |
| Cne - New London Turnpike Entry Point | Coventry | 9,999 | None found | 3 |
| Greenville Water District | Smithfield | 9,500 | None found | 0 |
| Smithfield Water Supply Board | Smithfield | 9,460 | None found | 3 |
| North Tiverton Fire District | Tiverton | 8,969 | PFOA | 0 |
| Narragansett Water System - Point Judith | Narragansett | 8,210 | None found | 13 |
| Naval Station, Newport | Newport | 7,870 | None found | 0 |
| South Kingstown - South Shore | South Kingstown | 6,170 | PFOA | 0 |
| Clear River Electric and Water District | Burrillville | 6,000 | Not sampled | 0 |
| Narragansett Water Dept - North End | Narragansett | 4,432 | PFOA, PFOS, PFBS | 8 |
| Kingston Water District | South Kingstown | 3,968 | PFOA, PFBS | 0 |
| Slatersville Public Supply | North Smithfield | 3,403 | Not sampled | 3 |
| Jamestown Water Department | Jamestown | 3,348 | None found | 2 |
Utilities EPA sampled under UCMR 5, plus any other community system serving 3,300 people or more. Smaller systems appear in ZIP code results. People served is what each utility reports to EPA. Data: EPA SDWIS 2026 Q2 and UCMR 5.