PFAS Detections in Maine ZIP Codes — 2026

Out of 13 ZIP codes with data in Maine, these are the highest-ranked areas for pfas status. See also: National ZIP Codes with PFAS Detections in Water | All Maine Rankings

Statistic	Value
ZIP codes ranked	13
Highest value	0.0 ppt
Median value	0.0 ppt
State	Maine

Top 13 Worst ZIP Codes

Rank	ZIP Code	City	State	Safety Score
1	04252	Lisbon Falls	ME	48/100
2	04073	Sanford	ME	50/100
3	04083	Springvale	ME	50/100
4	04915	Belfast	ME	—
5	04634	Franklin	ME	64/100
6	04021	Cumberland Center	ME	47/100
7	04096	Yarmouth	ME	48/100
8	04097	North Yarmouth	ME	47/100
9	04901	Waterville	ME	46/100
10	04937	Fairfield	ME	—
11	04989	Vassalboro	ME	49/100
12	04345	Gardiner	ME	63/100
13	04609	Bar Harbor	ME	67/100

Methodology

PFAS detection data comes from EPA UCMR5 monitoring, state-level testing programs, and Consumer Confidence Reports. ZIP codes are ranked by maximum PFAS concentration detected. The EPA has set MCLs of 4 ppt for PFOA and PFOS individually. PFAS are persistent chemicals that do not break down in the environment.

Data sources: EPA Safe Drinking Water Information System (SDWIS), FEMA National Flood Insurance Program, EPA radon zone maps, EIA electricity rates, and Consumer Confidence Reports. Last updated: 2026-08-31.

Frequently Asked Questions

What are PFAS?

PFAS (per- and polyfluoroalkyl substances) are synthetic chemicals used in non-stick coatings, firefighting foam, and food packaging since the 1940s. They are called "forever chemicals" because they do not break down naturally. PFAS are linked to cancer, liver damage, thyroid disease, and immune system suppression.

How can I remove PFAS from my water?

Reverse osmosis (RO) and granular activated carbon (GAC) filters are effective at removing most PFAS from drinking water. NSF/ANSI 53 or 58 certified filters are recommended. Boiling water does NOT remove PFAS.