Forever Chemicals
Maybe you served in Maine and want to know what the testing actually shows on the ground you defended. Maybe you're just a Mainer by birth or by choice, wondering what's under the well or the water main. This page takes a federal dataset and gives it bearings. Maine's environmental work runs through the Department of Environmental Protection (Maine DEP), with drinking water handled by the state's Drinking Water Program, and Maine has been among the more active states on PFAS. The figures below aren't a verdict on any single address. They're the statewide record, set out plainly and genuinely worth reviewing when evaluating an address.
EPA's UCMR 5 program (2021–2024) tested 41 public water systems in Maine for 29 PFAS compounds; 7 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 Maine address.
Maine has been notably forward on PFAS. The Maine Department of Environmental Protection (Maine DEP), working with the state's Drinking Water Program under the Maine CDC, is among the states that set their own enforceable PFAS drinking-water limits ahead of the April 2024 federal rule. That early state action sits alongside the federal standard, which caps PFOA and PFOS at 4 parts per trillion. So the posture in Maine isn't simply 'wait for Washington', it's a state that largely moved first. For a resident, that translates to a named, demonstrably active office standing behind the records you're about to read.
Numbers below come straight from EPA UCMR 5 monitoring (2021–2024). Every public water system in Maineserving more than 3,300 people had to test for 29 different PFAS — here's what they reported.
41
Water systems tested
UCMR 5 (2021–2024)
7
Systems with any PFAS detected
17% detection rate
0
Systems exceeding 2024 MCL
Above 4 ppt PFOA/PFOS
7
Distinct PFAS compounds detected
Of 29 monitored under UCMR 5
0
TRI-reporting PFAS facilities
EPA Toxics Release Inventory 2024
2
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 Maineutilities 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 |
|---|---|---|---|
| MSAD 06 BONNY EAGLE MIDDLE SCHOOL | 1 | 0.02 | Below MCL |
| LISBON WATER DEPARTMENT | 3 | 0.01 | Below MCL |
| SANFORD WATER DISTRICT | 1 | 0.01 | Below MCL |
| FRANKLIN WATER DEPARTMENT, ME | 2 | 0.01 | Below MCL |
| HOULTON WATER COMPANY | 1 | 0 | Below MCL |
| KENNEBEC WATER DISTRICT | 2 | 0 | Below MCL |
| GARDINER WATER DISTRICT | 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 Maine 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 Maine installations, the address report will tell you exactly how close.
Brunswick NAS
Navy
NCTAMSLANT Det Cutler
Navy
Looking at a specific Mainecity? 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.
Read the picture with its edges in mind. The federal UCMR5 program tested 29 PFAS compounds, but only at public water systems serving more than about 3,300 people, with sampling running 2021 to 2024. Maine is heavily rural and heavily reliant on private wells, and those, along with the smallest systems, weren't required to test, so a quiet map is unproven rather than clean. Maine DEP and the state's Drinking Water Program have been unusually proactive in offering well-testing guidance, which is worth using if you draw your own water. And a detection from a few years back is a snapshot, not a live reading. The acronym thicket (UCMR, MCL) is dense; the underlying question stays simple.
Yes. EPA UCMR 5 monitoring (2021–2024) tested 41 public water systems in Maine; 7 had at least one PFAS detection. Detections vary by water system — check your specific serving utility.
Maine is among the states that set their own enforceable PFAS drinking-water limits ahead of the April 2024 federal rule, acting earlier than many others. That state-level standard now sits alongside the federal rule, which caps PFOA and PFOS at 4 parts per trillion. The Maine Department of Environmental Protection (Maine DEP) and the state's Drinking Water Program administer those protections together.
Maine has been comparatively aggressive on PFAS. The Maine Department of Environmental Protection (Maine DEP), with the state's Drinking Water Program, oversees monitoring and compliance for public water systems and was among the states acting ahead of the 2024 federal rule. The state has also pushed broadly on PFAS in areas beyond drinking water. Private wells largely fall outside formal oversight, so the agencies emphasize testing guidance for well owners.
Maine DEP is the Maine Department of Environmental Protection, the state agency overseeing environmental quality across air, land, and water. On drinking water, it works with the state's Drinking Water Program under the Maine CDC, and it has been among the more active state agencies on PFAS. If you came looking for the office behind Maine's environmental and water oversight, Maine DEP is it.
Use VetMyAddress to see the PFAS detections reported for the public water system serving any Maine 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