Forever Chemicals
Whether you are moving a family into Rhode Island, taking a harder look at your own tap after years here, or you simply wanted the DEM and ended up here, the offices behind the figures below are the Rhode Island Department of Environmental Management and the Department of Health's Drinking Water program. Rhode Island acted early on PFAS and has its own enforceable limit in place. The numbers below come from federal monitoring and pass no judgment on any single home. They are the public record, laid out so you can read it without alarm and decide what is worth reviewing when evaluating an address.
EPA's UCMR 5 program (2021–2024) tested 29 public water systems in Rhode Island for 29 PFAS compounds; 5 reported at least one detection and none exceeded the 2024 federal limit of 4 ppt for PFOA/PFOS (a 17% detection rate). Detections vary by water system — check the utility serving a specific Rhode Island address.
In Rhode Island, environmental protection runs through the Rhode Island Department of Environmental Management (DEM), while drinking water itself is overseen by the Rhode Island Department of Health's Drinking Water program. Rhode Island is among the states that moved to set their own enforceable PFAS drinking-water limit ahead of the 2024 federal rule, so residents here benefit from both a state standard and the federal 4-parts-per-trillion ceiling for PFOA and PFOS. A small state with two agencies on the case may sound like overkill, but it means the question of who is responsible has a clear answer, and you can read what each office reports rather than wonder.
Numbers below come straight from EPA UCMR 5 monitoring (2021–2024). Every public water system in Rhode Islandserving more than 3,300 people had to test for 29 different PFAS — here's what they reported.
29
Water systems tested
UCMR 5 (2021–2024)
5
Systems with any PFAS detected
17% detection rate
0
Systems exceeding 2024 MCL
Above 4 ppt PFOA/PFOS
9
Distinct PFAS compounds detected
Of 29 monitored under UCMR 5
0
TRI-reporting PFAS facilities
EPA Toxics Release Inventory 2024
1
DoD PFAS installations
Military PFAS contamination sites
Red triangles are military installations the Department of Defense has flagged for PFAS from firefighting foam. Orange dots are industrial facilities that reported PFAS to the EPA Toxics Release Inventory. If your future home sits near a cluster, that's a conversation worth having with the seller or landlord.
These are the Rhode Islandutilities where EPA testing found PFAS the most often or at the highest levels. Being on this list doesn't automatically mean today's tap water is unsafe — some systems have added treatment since these samples were taken — but it means a conversation with the utility is worth having before you move in.
| Water system | Detections | Max value (ng/L) | vs 2024 MCL |
|---|---|---|---|
| UNIVERSITY OF RHODE ISLAND | 8 | 0.02 | Below MCL |
| QUONSET BUSINESS PARK | 3 | 0.01 | Below MCL |
| NEWPORT-CITY OF | 3 | 0.01 | Below MCL |
| WESTERLY WATER DEPARTMENT | 1 | 0 | Below MCL |
| NAVAL STATION, NEWPORT | 1 | 0 | Below MCL |
PFAS isn't one chemical — it's a family of thousands. Here are the specific compounds EPA picked up most often across Rhode Island water systems. PFOA and PFOS are the two with the strictest federal limits (4 parts per trillion).
For decades the military trained with AFFF firefighting foam loaded with PFAS. It soaked into soil and groundwater and, in many places, traveled miles. If you're house-hunting near any of these Rhode Island installations, the address report will tell you exactly how close.
NAVAL AUX LANDING FIELD
FUDS
Looking at a specific Rhode Islandcity? Each page below pulls the same federal data narrowed to that water system — useful whether you're relocating, buying, organizing your neighborhood around getting cleaner water, or just trying to find out what's in the tap and what's around you.
A short guide to reading the figures above before they feel like fixed facts. The federal monitoring round behind them sampled 29 PFAS compounds at public systems serving more than roughly 3,300 people, between 2021 and 2024. The gaps are real even in a compact state: private wells were never required to test, smaller systems sit below the threshold, and a 2022 detection describes that year rather than today's tap. For a private well, the guidance from Rhode Island's drinking-water authorities is a better starting point than any statewide system number. That the state runs protection through the DEM and drinking water through Health is a tidy reminder that one glass of water can answer to two letterheads.
Military and aviation sites deserve a careful, plain read, and Rhode Island's coastline carries a long naval and Guard history. For decades, a firefighting foam called AFFF was used in training at such sites, and it contained the PFAS compounds now under scrutiny. These compounds do not break down easily and can travel through groundwater past any fence line, which is why nearby installations matter to a water conversation. If your family served, the installations listed above are offered as context for where groundwater attention has gathered, not as a judgment on anyone's home.
Yes. EPA UCMR 5 monitoring (2021–2024) tested 29 public water systems in Rhode Island; 5 had at least one PFAS detection. Detections vary by water system — check your specific serving utility.
Yes. Rhode Island is among the states that moved to set their own enforceable PFAS drinking-water limit ahead of the 2024 federal rule. Residents are covered by both that state standard and the federal limits of 4 parts per trillion for PFOA and PFOS, and 10 for PFHxS, PFNA, and GenX.
Rhode Island divides the work: the Department of Environmental Management (DEM) handles broad environmental protection, while the Department of Health oversees drinking water and the state's PFAS limit. Rhode Island has been among the more proactive states, setting its own enforceable standard.
The Rhode Island Department of Environmental Management (DEM) is the state agency for environmental protection, including land and water resources. Drinking-water standards, including PFAS, fall to the Rhode Island Department of Health, the office to consult on tap-water rules.
Use VetMyAddress to see the PFAS detections reported for the public water system serving any Rhode Island address, alongside nearby military bases and industrial PFAS sources. The data comes from EPA UCMR 5, EPA TRI, and the DoD PFAS installation report.
In April 2024 the EPA set the first enforceable federal limits for PFAS in drinking water: 4 parts per trillion for PFOA and PFOS, and 10 ppt each for PFHxS, PFNA, and HFPO-DA (GenX), plus a Hazard Index for certain mixtures. Public water systems must complete initial monitoring by 2027 and come into compliance after that.
No. The federal limits apply to public water systems. Private well owners are responsible for their own testing and treatment, which is especially worth doing near a known PFAS source like a military base or industrial site.
State numbers tell you the pattern. An address report tells you what's actually in the water at yourkitchen sink — the matched utility, the PFAS detections on file, and every military or industrial source nearby. Whether it's for your family, your neighbors, or peace of mind.
Data sources: EPA UCMR 5 bulk data · EPA TRI 2024 · DoD PFAS installation report