EPA UCMR 5 results for 41 public water systems. 10 had at least one PFAS detected; 5 had a highest single PFOA or PFOS result above 4.0 ppt.
UCMR 5 is a one-time EPA monitoring program, not a compliance determination. The values shown are the highest single sample result at any of the system's sampling points; one result above 4.0 ppt does not mean the system violates the PFAS rule, which is judged on running annual averages under separate compliance monitoring. Results describe the public water system, not an individual home.
| Water system | Serves | PFOA max (ppt) | PFOS max (ppt) | PFAS detected |
|---|---|---|---|---|
| Anson and Madison Water District ME0090930 | Anson, Embden, Madison | ND | ND | 0 |
| Auburn Water District, Me ME0090070 | Auburn | ND | ND | 0 |
| Bangor Water District ME0090110 | Bangor, Clifton, Eddington and others | ND | ND | 0 |
| Bath Water District ME0090130 | Bath, Brunswick, West Bath and others | ND | ND | 0 |
| Belfast Water District ME0090140 | Belfast, Northport | ND | ND | 3 |
| Boothbay Region Water District ME0090200 | Boothbay | ND | ND | 0 |
| Brewer Water Department ME0090220 | Brewer, Clifton, Eddington and others | ND | ND | 0 |
| Brunswick / Topsham Water District ME0090260 | Brunswick, Topsham | ND | ND | 0 |
| Caribou Utilities District ME0090320 | Caribou | ND | ND | 0 |
| Ellsworth Water Department ME0090520 | Ellsworth | ND | ND | 0 |
| Farmington Village Corp Water Dept ME0090540 | Farmington | ND | ND | 0 |
| Franklin Water Department, Me ME0090570 | Franklin | ND | ND | 4 |
| Gardiner Water District ME0090610 | Gardiner | ND | ND | 2 |
| Greater Augusta Utility District ME0090080 | Augusta, Chelsea, Manchester and others | ND | ND | 0 |
| Hampden Water District ME0090660 | Hampden | ND | ND | 0 |
| Houlton Water Company ME0090700 | Houlton | ND | 4.8 | 1 |
| Kennebec Water District ME0090750 | Fairfield, Oakland, Vassalboro and others | 6.4 | ND | 4 |
| Kennebunk, Kennebunkport & Wells WD ME0090760 | Kennebunk, Kennebunkport, Wells | ND | ND | 0 |
| Kittery Water District ME0090790 | Kittery | ND | ND | 0 |
| Lake Arrowhead Community Inc ME0090811 | Waterboro | ND | ND | 0 |
| Lewiston Water & Sewer Division ME0090830 | Lewiston | ND | ND | 0 |
| Lisbon Water Department ME0090870 | Lisbon | 4.1 | ND | 5 |
| Maine Water Company Biddeford Saco Div ME0090170 | Biddeford, Saco | ND | ND | 0 |
| Maine Water Company Camden & Rockland ME0090300 | Camden, Owls Head, Rockland and others | ND | ND | 0 |
| Maine Water Company Millinocket Division ME0090990 | Millinocket | ND | ND | 0 |
| Maine Water Company Skowhegan Division ME0091450 | Skowhegan | ND | ND | 0 |
| Msad 06 Bonny Eagle Middle School ME0000147 | Buxton | ND | ND | 1 |
| Old Town Water District ME0091200 | Old Town | ND | ND | 0 |
| Orono-Veazie Water District ME0091210 | Orono | ND | ND | 0 |
| Portland Water District-Greater ME0091300 | Cape Elizabeth, Cumberland, Falmouth and others | ND | ND | 0 |
| Presque Isle Utilities District ME0091310 | Presque Isle | ND | ND | 0 |
| Rumford Water District ME0091380 | Rumford | ND | ND | 0 |
| Saco River Apartments ME0092710 | Hollis | ND | ND | 0 |
| Sanford Water District ME0091410 | Sanford | 6.8 | 7.1 | 7 |
| South Berwick Water District ME0091470 | Berwick, South Berwick | ND | ND | 0 |
| Town of Bar Harbor- Water Division ME0090120 | Bar Harbor | ND | ND | 2 |
| Us Border Station-Long Pond Rd-Jackman ME0092559 | Jackman | ND | ND | 0 |
| Van Buren Water District ME0091540 | Van Buren | ND | ND | 0 |
| Vinalhaven Water District ME0091550 | Vinalhaven | ND | ND | 0 |
| Yarmouth Water District ME0091670 | North Yarmouth, Yarmouth | 9.2 | ND | 5 |
| York Water District ME0091680 | York | ND | ND | 0 |
ND = not detected (below the 4 ppt UCMR 5 reporting level). Values are the highest single sample result, not an annual average.