PFAS in Drinking Water in Rhode Island
What residents of Rhode Island need to know about PFAS ("forever chemicals") in drinking water — including contamination sources, which utilities have documented violations, and how to filter PFAS from tap water.
Source: EPA SDWIS, Rhode Island Department of Health, CDC · Last reviewed: 2025-01-01
Quick Answer
Is PFAS in drinking water a real concern in Rhode Island?
PFAS contamination in Rhode Island is primarily linked to Quonset State Airport (former Quonset Point Naval Air Station) in North Kingstown and fire training activities at T.F. Green Airport in Warwick. The former Quonset NAS — which closed in 1974 — left a legacy of contamination including PFAS from AFFF use, and subsequent industrial use of the site has added to contamination concerns.
Where does PFAS come from in Rhode Island?
Former Quonset Point Naval Air Station (now Quonset State Airport and Quonset Business Park) in North Kingstown is the primary known PFAS source in Rhode Island. AFFF use at this former major naval aviation facility has contaminated surrounding groundwater and potentially Narragansett Bay tributary systems. T.F. Green Airport fire training is a secondary source in the Providence metropolitan area.
What should Rhode Island residents know?
North Kingstown and East Greenwich area residents near former Quonset NAS, and private well users in Washington County, face the most direct risk. Rhode Island DOH has conducted PFAS testing under UCMR5. Rhode Island's small size means contamination from a single major source can affect a proportionally large share of the state's groundwater.
Key Facts
| EPA MCL (PFOA/PFOS) | 4 ppt — effective April 2024 |
| MCLG | Zero |
| Primary contamination source | Former Quonset Point NAS (North Kingstown) — major WWII-era naval aviation facility with AFFF legacy |
| Secondary concern | T.F. Green Airport fire training (Warwick/Providence area) |
| State regulator | Rhode Island Department of Health |
| Health effects | Cancer (kidney, testicular), thyroid disruption, immune effects, developmental toxicity |
| Effective treatment | Reverse osmosis (NSF/ANSI 58) or granular activated carbon certified for PFAS |
Why PFAS Matters in Rhode Island
Rhode Island is New England's smallest state, and the scale of Quonset Point's former military aviation operations — one of the East Coast's major WWII-era naval air facilities — means substantial AFFF use over decades. The former NAS site sits on a peninsula between Narragansett Bay and Greenwich Bay, with groundwater contamination having potential implications for coastal aquifer systems. Rhode Island's drinking water system relies on both surface water (Scituate Reservoir) and groundwater. The Scituate Reservoir watershed is geographically separated from known PFAS sources, but groundwater users in Washington County face more direct risk.
Rhode Island PFAS Regulation
Rhode Island DOH participates in UCMR5 monitoring. Quonset State Airport and Naval Station Newport are the primary PFAS assessment sites. Rhode Island's small size and reliance on the Scituate Reservoir for Providence-area water supply means PFAS in source water affects a large proportion of the state's population. Rhode Island follows the federal MCL with no additional state standard.
Largest Rhode Island Water Utilities
No PFAS violations on record in EPA SDWIS for Rhode Island utilities in our database. Browse the largest utilities to review their full water quality record.
What Are PFAS (“Forever Chemicals”)?
PFAS are a family of over 12,000 synthetic chemicals used in non-stick cookware, stain-resistant fabrics, food packaging, and AFFF firefighting foam. Their carbon-fluorine bonds do not break down in the environment or the body — hence the name “forever chemicals.” AFFF used at military bases is the single largest source of PFAS in U.S. drinking water.
Full PFAS overview — national data, health effects, all 50 statesWho Should Pay Closest Attention
North Kingstown and East Greenwich residents near former Quonset NAS, and private well users in Washington County and southern Rhode Island, face elevated PFAS risk. Providence metro residents primarily drawing from the Scituate Reservoir watershed face lower but non-zero risk.
Residents near military bases with AFFF use history
Private well owners near military or industrial sites
Pregnant residents and families with young children
Residents in communities with documented PFAS detections
Anyone who has consumed water above 4 ppt for an extended period
Residents near airports, fire training areas, or industrial manufacturers
How to Check Your Situation in Rhode Island
- 1
Identify your water utility using the ZIP lookup below or by browsing the Rhode Island utility directory on this site.
- 2
Review your utility's Consumer Confidence Report (CCR) — it must report PFAS monitoring results under UCMR5 and the new MCL.
- 3
Check the EPA's ECHO database for your utility's monitoring history. Look for PFAS, PFOA, PFOS, and related compound results.
- 4
Contact your utility directly and ask for their most recent PFAS test results and whether they are implementing treatment under the 2024 MCL.
- 5
If you use a private well near a military base, airport, or industrial facility, order a PFAS panel test from a state-certified laboratory. Tests typically cost $150–$400.
- 6
If PFAS is detected above 4 ppt in your source water, install a certified NSF/ANSI 58 reverse osmosis system or an NSF/ANSI 53-certified activated carbon filter rated for PFAS removal.
How to Remove PFAS from Tap Water
Reverse Osmosis (Best)
90–99% removal — NSF/ANSI 58 certified systems only
Certified Activated Carbon
Effective with NSF/ANSI 53 or 58 certification — verify before buying
Boiling concentrates PFAS. Standard pitcher filters and water softeners do not remove PFAS. Always verify NSF certification before purchasing.
Take Action Now
Look up your Rhode Island utility's PFAS monitoring history on the PFAS Watchlist below.
If your utility has detected PFAS above 4 ppt, install an NSF/ANSI 58-certified reverse osmosis system at your drinking tap.
Private well owners near military or industrial sites should order a PFAS panel test ($150–$400 at a state-certified lab).
Request your utility's most recent Consumer Confidence Report — PFAS results must be disclosed under the new 2024 MCL.
Frequently Asked Questions
Related Pages
PFAS — National Overview
All U.S. utilities with PFAS records
Rhode Island PFAS Watchlist
Live utility PFAS monitoring data
Rhode Island State Overview
All utilities and water quality data
Reverse Osmosis Guide
Removes 90–99% of PFAS
Activated Carbon Filter Guide
NSF/ANSI 53/58 certified options for PFAS
Arsenic in Drinking Water
Another priority contaminant
All Contaminants
Complete reference library
Data Sources & Provenance
All data on this page is sourced from official U.S. government or public datasets.
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Rhode Island Department of Health ↗