Washington County, RI
The federal environmental record for Washington County (population 129,982): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
3
Superfund NPL sites
38
federal cleanup sites
7
PFAS-detecting water systems
12
TRI facilities
31
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Davisville Naval Construction Battalion Center | North Kingstown | on the NPL | 11/21/1989 |
| Rose Hill Regional Landfill | South Kingstown | on the NPL | 10/04/1989 |
| West Kingston Town Dump/URI Disposal Area | South Kingstown | on the NPL | 10/14/1992 |
Drinking water: PFAS testing
Public water systems serving Washington with at least one PFAS detection under UCMR5. The federal limit for PFOA and PFOS is 4 ng/L; EPA proposed in May 2026 to rescind the limits for the other compounds, which are shown for information.
| System | Highest results | Reading |
|---|---|---|
| WESTERLY WATER DEPARTMENT RI1559512 | PFBA: 10 ng/L PFOA: 9 ng/L PFOS: 7 ng/L | above final limit |
| NORTH KINGSTOWN TOWN OF RI1559517 | PFOA: 8.1 ng/L PFBS: 7.7 ng/L PFHxA: 6.3 ng/L | above final limit |
| QUONSET BUSINESS PARK RI1592025 | PFOA: 15 ng/L PFPeA: 9 ng/L PFHxA: 8.8 ng/L | above final limit |
| SOUTH KINGSTOWN-SOUTH SHORE RI1615623 | PFPeA: 12.3 ng/L PFHxA: 8.9 ng/L PFOA: 6.1 ng/L | above final limit |
| KINGSTON WATER DISTRICT RI1858421 | PFBS: 36.8 ng/L PFHxA: 11.2 ng/L PFPeA: 9.1 ng/L | above final limit |
| UNIVERSITY OF RHODE ISLAND RI1858422 | PFOA: 16 ng/L PFBS: 9 ng/L PFHxA: 8 ng/L | above final limit |
| NARRAGANSETT WATER DEPT-NORTH END RI1858429 | PFBS: 5.4 ng/L PFOA: 4.3 ng/L PFOS: 4 ng/L | above final limit |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
12 facilities in Washington filed TRI reports for 2024, totalling 57k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| GENERAL DYNAMICS ELECTRIC BOAT CORP | NORTH KINGSTOWN | Diisocyanates, n-Butyl alcohol | 43k lb |
| TORAY PLASTICS (AMERICA) INC | NORTH KINGSTOWN | Acetaldehyde, Sodium nitrite | 6k lb |
| KENYON INDUSTRIES INC. | KENYON | Toluene, N,N-Dimethylformamide | 3k lb |
| ROGERS CORP - NARRAGANSETT | NARRAGANSETT | Xylene (mixed isomers), Toluene | 3k lb |
| BB & S TREATED LUMBER OF NE | NORTH KINGSTOWN | Copper And Copper Compounds, Sodium nitrite | 1k lb |
| SENESCO MAIN YARD | NORTH KINGSTOWN | Manganese, Chromium | 11 lb |
| FUJIFILM ELECTRONIC MATERIALS USA INC | NORTH KINGSTOWN | Xylene (mixed isomers), Ethylbenzene | 10 lb |
| MODINE MANUFACTURING CO | WEST KINGSTON | Copper | 10 lb |
| LINCOLN MANUFACTURING | NORTH KINGSTOWN | Certain glycol ethers | 0 lb |
| OLDCASTLE | WYOMING | - | 0 lb |
| NEW BRICK DRYVIT SYSTEMS | NORTH KINGSTOWN | - | 0 lb |
| HERITAGE CONCRETE CORP | EXETER | Lead | 0 lb |
Underground fuel tanks
EPA's UST Finder records 408 tank facilities in Washington: 160 tanks in service and 1,116 closed. 260 fuel releases are on record, of which 31 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Washington as Zone 1, the highest predicted indoor radon levels (over 4 pCi/L average). Radon and air quality are covered in depth on lung.com.
The record for one specific address
County figures blur what matters: distance. The Address Environmental Report runs these same federal datasets against one address and reports every site, tank, polluter and water result around it, with distances, in about a minute.
Get the report - $39All federal cleanup sites on file
The wider Superfund enterprise inventory (SEMS) for Washington, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- BEAVER RIVER DUMPRICHMOND
- BLUE BEACH DISPOSAL AREANORTH KINGSTOWN
- BRADFORD PRINTING AND FINISHINGWESTERLY
- CAMP AVENUE DUMPNORTH KINGSTOWN
- CAROLINA BACK ROAD/OLD SHANNOCK ROAD AREACHARLESTOWN
- DAVISVILLE NAVAL CONSTRUCTION BATTALION CENTERNORTH KINGSTOWN
- DAVISVILLE NIKE LAUNCHER AREANORTH KINGSTOWN
- DOD/NCBC/BLDG. 37 TRANSFORMER OIL DISP.NORTH KINGSTOWN
- DOD/NCBC/BLDG. 38 TRANSFORMER OIL LEAKSNORTH KINGSTOWN
- DOD/NCBC/BUILDING W-3 DISPOSAL AREANORTH KINGSTOWN
- DOD/NCBC/CED ASPHALT DISPOSAL AREANORTH KINGSTOWN
- DOD/NCBC/CED BATTERY ACID DISPOSALNORTH KINGSTOWN
- DOD/NCBC/CED SOLVENT DISPOSAL AREANORTH KINGSTOWN
- DOD/NCBC/DPDO FILM PROCESSING DISPOSALNORTH KINGSTOWN
- DOD/NCBC/DPDO TRANSFORMER OIL SPILL AREANORTH KINGSTOWN
- DOD/NCBC/FIREFIGHTING AREA #1NORTH KINGSTOWN
- DOD/NCBC/NORTH KINGSTOWN SOLVENT DISP.NORTH KINGSTOWN
- EXETER SANITARY LANDFILL #2EXETER
- EXETER TOWN DUMPEXETER
- FIREFIGHTING AREA #2NORTH KINGSTOWN
- HOPKINTON, TOWN OF, LANDFILLHOPKINTON
- INTERNATIONAL DEPOSITORYNORTH KINGSTOWN
- KIEFER PARK TANK FARMNORTH KINGSTOWN
- NARGANST DRIVE AREA/LADD CENTER (FORMER)EXETER
- NEW SHOREHAM TOWN LANDFILLNEW SHOREHAM
- NINIGRET NWRCHARLESTOWN
- NINIGRET PARKCHARLESTOWN
- NORTH KINGSTOWN ARMY AIR SUPPORT FACILITYNORTH KINGSTOWN
- NORTH KINGSTOWN LANDFILL #1NORTH KINGSTOWN
- NORTH KINGSTOWN LANDFILL #2NORTH KINGSTOWN
- OLD QUARRY DISPOSAL SITENORTH KINGSTOWN
- RICHMOND TOWN LANDFILLRICHMOND
- ROSE HILL LANDFILL/TRANSFER STATIONSOUTH KINGSTOWN
- SEA BREEZE AVENUE AREACHARLESTOWN
- SEPTAGE DISPOSAL AREASOUTH KINGSTOWN
- TRUSTOM POND NWRSOUTH KINGSTOWN
- URI DISPOSAL AREASOUTH KINGSTOWN
- URI DISPOSAL AREASOUTH KINGSTOWN