State drinking water records
Maine drinking water systems
385 community water systems serve Maine and are listed below under 16 counties and on the pages of 144 cities and towns. Their own population figures add up to 691,451 people, a sum that counts people twice where one system sells water to another.
90 of them (23%) had at least one health-based violation in the last 10 years. 121 systems still have one unresolved.
333 rely mainly on groundwater and 52 on surface water, counting water bought from other systems.
383 systems filed a lead service line inventory listing 29 lead lines, 1,611 galvanized lines that must be replaced and 45,088 lines of unknown material.
107 systems are placed by the county their records name: EPA has no service area map for 95 of them, and 12 have one that does not line up with their own records.
- Community water systems
- 385
- People served, sum of each system's own figure
- 691,451
- Systems with a health-based violation, last 10 years
- 90
- Systems with one unresolved
- 121
- Lead service lines in inventories
- 29
Counties
16 countiesEach county counts the systems whose service area map reaches it. Systems placed only by a mailing address are listed on the county pages but not counted here.
| County | Systems | People served | With a health-based violation, 10 years | With one unresolved |
|---|---|---|---|---|
| Androscoggin County | 16 | 55,287 | 3 | 7 |
| Aroostook County | 24 | 29,307 | 6 | 7 |
| Cumberland County | 21 | 174,533 | 6 | 9 |
| Franklin County | 14 | 17,561 | 3 | 5 |
| Hancock County | 20 | 18,444 | 9 | 7 |
| Kennebec County | 21 | 55,294 | 3 | 5 |
| Knox County | 10 | 25,127 | 2 | 1 |
| Lincoln County | 8 | 13,892 | 1 | 0 |
| Oxford County | 15 | 20,019 | 5 | 6 |
| Penobscot County | 38 | 73,015 | 5 | 11 |
| Piscataquis County | 7 | 7,969 | 3 | 0 |
| Sagadahoc County | 7 | 30,659 | 0 | 1 |
| Somerset County | 15 | 21,682 | 3 | 3 |
| Waldo County | 13 | 10,003 | 1 | 1 |
| Washington County | 19 | 12,089 | 4 | 8 |
| York County | 34 | 139,587 | 9 | 7 |
Largest systems
| System | Main county | People served | Main source | Health-based violations, 10 years | Unresolved | Lead lines |
|---|---|---|---|---|---|---|
| Portland Water District-Greater | Cumberland County | 135,068 | Surface water | 0 | 0 | 0 |
| Maine Water Company Biddeford Saco Div | York County | 42,508 | Surface water | 1 | 0 | 0 |
| Kennebunk, Kennebunkport & Wells WD | York County | 35,663 | Surface water | 0 | 0 | 0 |
| Bangor Water District | Penobscot County | 27,298 | Surface water | 0 | 0 | 4 |
| Lewiston Water & Sewer Division | Androscoggin County | 23,720 | Surface water | 0 | 0 | 0 |
| Kennebec Water District | Kennebec County | 22,060 | Surface water | 0 | 0 | 0 |
| Maine Water Company Camden & Rockland | Knox County | 21,315 | Surface water | 0 | 0 | 0 |
| Brunswick/Topsham Water District | Sagadahoc County and 1 other county | 18,863 | Groundwater | 0 | 0 | 0 |
| Auburn Water District | Androscoggin County | 17,245 | Surface water | 0 | 0 | 0 |
| Kittery Water District | York County | 14,478 | Surface water | 0 | 0 | 0 |
| Sanford Water District | York County | 14,328 | Groundwater | 0 | 0 | 0 |
| Greater Augusta Utility District | Kennebec County | 13,750 | Groundwater | 0 | 0 | 9 |
| York Water District | York County | 13,675 | Surface water | 0 | 0 | 0 |
| Bath Water District | Sagadahoc County | 9,290 | Surface water | 0 | 0 | 0 |
| Gardiner Water District | Kennebec County | 9,000 | Groundwater | 0 | 2 | 0 |
Systems with unresolved health-based violations
121 systemsThe 100 with the most unresolved violations are listed. The county pages list the other 21.
| System | Main county | People served | Main source | Health-based violations, 10 years | Unresolved | Lead lines |
|---|---|---|---|---|---|---|
| Monson Utilities District | Piscataquis County | 298 | Groundwater | 3 | 7 | 0 |
| Birch Haven Trailer Park | Hancock County | 43 | Groundwater | 1 | 6 | 0 |
| Homestead Estates LLC | Penobscot County | 125 | Groundwater | 2 | 5 | 0 |
| Pine Tree Mobile Estates | Cumberland County | 560 | Groundwater | 0 | 4 | 0 |
| Danforth Water District | Washington County | 373 | Groundwater | 0 | 4 | 0 |
| Highpine Village | York County | 300 | Groundwater | 0 | 4 | 0 |
| Hingham Heights | Penobscot County | 140 | Groundwater | 3 | 4 | 0 |
| Crest View Manor | Aroostook County | 38 | Groundwater | 0 | 4 | 0 |
| St Agatha Housing | Aroostook County | 30 | Groundwater | 0 | 4 | 0 |
| Winter Harbor Water District | Hancock County | 700 | Groundwater | 0 | 3 | 0 |
| Mountain View Correctional Facility | Penobscot County | 468 | Groundwater | 0 | 3 | 0 |
| White Tail Ridge Association | Cumberland County | 123 | Groundwater | 0 | 3 | 0 |
| Town and Country Ways MHP | Kennebec County | 75 | Groundwater | 0 | 3 | 0 |
| Willowbrook Mobile Home Park | Penobscot County | 75 | Groundwater | 0 | 3 | 0 |
| Scroggins Mobile Home Park | Penobscot County | 73 | Groundwater | 0 | 3 | 0 |
| Burnt Mill Settlement | York County | 73 | Groundwater | 0 | 3 | 0 |
| Sherwood Forest MHP | Hancock County | 68 | Groundwater | 2 | 3 | 0 |
| Elliott Apartments | Knox County | 55 | Groundwater | 0 | 3 | 0 |
| Vigneaults Mobile Home Park | Penobscot County | 53 | Groundwater | 0 | 3 | 0 |
| Raymond Woods Townhouses | Cumberland County | 50 | Groundwater | 9 | 3 | 0 |
| Gardiner Water District | Kennebec County | 9,000 | Groundwater | 0 | 2 | 0 |
| Ellsworth Water Department | Hancock County | 3,910 | Surface water | 5 | 2 | 2 |
| Harrison Water District | Cumberland County | 863 | Groundwater | 0 | 2 | 0 |
| Indian Township Tribal Water System | Washington County | 535 | Groundwater | 0 | 2 | 0 |
| Buckfield Village Corporation | Oxford County | 425 | Surface water | 1 | 2 | 0 |
| Cold Spring Water Company | Hancock County | 305 | Groundwater | 0 | 2 | 0 |
| Pine Ridge Hunton Brook Association | Androscoggin County | 298 | Groundwater | 0 | 2 | 0 |
| Streamside Pines Mobile Home Park | Penobscot County | 183 | Groundwater | 0 | 2 | 0 |
| Plymouth Water District | Penobscot County | 150 | Groundwater | 0 | 2 | 0 |
| St Josephs Memory Care | Aroostook County | 143 | Groundwater | 0 | 2 | 0 |
| Parker Ridge Retirement Community | Hancock County | 120 | Groundwater | 0 | 2 | 0 |
| Grandeur Mobile Home Estates | Penobscot County | 100 | Groundwater | 0 | 2 | 0 |
| Mountain View Trailer Park | Aroostook County | 95 | Groundwater | 0 | 2 | 0 |
| Dingley Spring Estates | Cumberland County | 90 | Groundwater | 0 | 2 | 0 |
| Country Acres Trailer Park | Androscoggin County | 75 | Groundwater | 0 | 2 | 0 |
| Hancock Village MHP | Hancock County | 73 | Groundwater | 1 | 2 | 0 |
| Stillwater Mobile Home Park | Penobscot County | 70 | Groundwater | 0 | 2 | 0 |
| York County Shelters | York County | 70 | Groundwater | 0 | 2 | 0 |
| Poland Trailer Park-Poland | Androscoggin County | 68 | Groundwater | 0 | 2 | 0 |
| Nezinscot Village | Androscoggin County | 67 | Groundwater | 1 | 2 | 0 |
| Havasu Pines MHP #1 | Penobscot County | 65 | Groundwater | 0 | 2 | 0 |
| The Meadows | Androscoggin County | 65 | Groundwater | 0 | 2 | 0 |
| Holden Square Apartments | Penobscot County | 63 | Groundwater | 1 | 2 | 0 |
| Whispering Pines MHP | Waldo County | 50 | Groundwater | 0 | 2 | 0 |
| Crystal Spring Estates | Cumberland County | 40 | Groundwater | 10 | 2 | 0 |
| Lynns Way | Somerset County | 33 | Groundwater | 0 | 2 | 0 |
| Anson and Madison Water District | Somerset County | 5,568 | Surface water | 0 | 1 | 0 |
| Bridgton Water District | Cumberland County | 3,660 | Groundwater | 0 | 1 | 0 |
| Livermore Falls Water District | Androscoggin County and 1 other county | 2,995 | Surface water | 2 | 1 | 0 |
| Southwest Harbor Water & Sewer District | Hancock County | 2,480 | Surface water | 7 | 1 | 0 |
| Gray Water District | Cumberland County | 2,468 | Groundwater | 2 | 1 | 0 |
| Fort Fairfield Utilities District | Aroostook County | 2,025 | Surface water | 2 | 1 | 0 |
| Lubec Water District | Washington County | 1,775 | Groundwater | 0 | 1 | 0 |
| Sabattus Sanitary District | Androscoggin County | 1,550 | Groundwater | 0 | 1 | 0 |
| Dixfield Water & Sewer Dept | Oxford County | 1,415 | Groundwater | 0 | 1 | 0 |
| Vinalhaven Water District | Knox County | 1,053 | Surface water | 7 | 1 | 0 |
| Jay Village Water District | Franklin County | 975 | Purchased surface water | 7 | 1 | 0 |
| Kingfield Water District | Franklin County | 950 | Groundwater | 0 | 1 | 0 |
| Washburn Water & Sewer District | Aroostook County | 688 | Groundwater | 0 | 1 | 0 |
| Northport Village Corp Water Dept | Waldo County | 550 | Purchased groundwater | 0 | 1 | 0 |
| West Paris Water District | Oxford County | 540 | Groundwater | 3 | 1 | 0 |
| Franklin Water Department | Hancock County | 443 | Groundwater | 0 | 1 | 0 |
| Andover Water District | Oxford County | 265 | Groundwater | 0 | 1 | 0 |
| New Sharon Water District | Franklin County | 245 | Groundwater | 0 | 1 | 0 |
| Canton Water District | Oxford County | 243 | Surface water | 3 | 1 | 0 |
| Farmington Falls STD Water Dist | Franklin County | 225 | Groundwater | 0 | 1 | 0 |
| East Vassalboro Water Company LLC | Kennebec County | 205 | Groundwater | 0 | 1 | 0 |
| Loring Development Authority | Aroostook County | 180 | Surface water | 5 | 1 | 0 |
| Estes Lake Mobile Home Park | York County | 172 | Groundwater | 0 | 1 | 0 |
| Hillhouse Inc | Sagadahoc County | 146 | Groundwater | 0 | 1 | 0 |
| Hillview Estates | Androscoggin County | 140 | Groundwater | 0 | 1 | 0 |
| Blueberry Ridge Mobile Village | York County | 138 | Groundwater | 0 | 1 | 0 |
| Town and Country Apartments | Aroostook County | 136 | Groundwater | 0 | 1 | 0 |
| Cathance Trailer Park | Sagadahoc County | 135 | Groundwater | 0 | 1 | 0 |
| Hidden Lake Village LLC | York County | 133 | Groundwater | 0 | 1 | 0 |
| New Gloucester Water District | Cumberland County | 130 | Groundwater | 0 | 1 | 0 |
| Pine Grove Terrace | Aroostook County | 123 | Groundwater | 0 | 1 | 0 |
| Limerick Mobile Home Park LLC | York County | 115 | Groundwater | 0 | 1 | 0 |
| Maple Ridge Mobile Home Park | Penobscot County | 110 | Groundwater | 1 | 1 | 0 |
| Pinewood Park | York County | 108 | Groundwater | 0 | 1 | 0 |
| Tanglewood Mobile Estates 2 | York County | 103 | Groundwater | 0 | 1 | 0 |
| Riverside Court | Aroostook County | 100 | Groundwater | 0 | 1 | 0 |
| South Slope Estates MHP | Penobscot County | 100 | Groundwater | 0 | 1 | 0 |
| Millstone Apartments | Cumberland County | 97 | Groundwater | 0 | 1 | 0 |
| Caribou Stream Mobile Home Pk | Aroostook County | 95 | Groundwater | 0 | 1 | 0 |
| Oakwood Mobile Community Association | York County | 95 | Groundwater | 0 | 1 | 0 |
| Pinewood Acres Trailer Park | Sagadahoc County | 95 | Groundwater | 0 | 1 | 0 |
| Timberline Village | Somerset County | 95 | Groundwater | 0 | 1 | 0 |
| Wooded Grove Mobile Home Park | Penobscot County | 90 | Groundwater | 0 | 1 | 0 |
| Birchwood Trailer Park | Waldo County | 90 | Groundwater | 0 | 1 | 0 |
| Canton Point Park | Oxford County | 88 | Groundwater | 0 | 1 | 0 |
| Pine Ridge Village | Kennebec County | 85 | Groundwater | 0 | 1 | 0 |
| Blue Rock Cooperative | Kennebec County | 83 | Groundwater | 0 | 1 | 0 |
| Hebron Water Company | Oxford County | 83 | Surface water | 4 | 1 | 0 |
| Havasu Pines MHP | Penobscot County | 75 | Groundwater | 0 | 1 | 0 |
| Good Will Home Association | Somerset County | 72 | Groundwater | 0 | 1 | 0 |
| Marsh Brook Estates | York County | 70 | Groundwater | 0 | 1 | 0 |
| Streets Mobile Home Park | Penobscot County | 65 | Groundwater | 0 | 1 | 0 |
| Pond & Pond Trailer Park | Cumberland County | 63 | Groundwater | 2 | 1 | 0 |
| Downeast Correctional Facility | Washington County | 63 | Groundwater | 0 | 1 | 0 |
Counties come from the counties EPA lists each system serving, matched to 2024 Census counties; where EPA lists none, from the county coded in the system's ID, its service area map, or its mailing address. A county holding at least a fifth of a system's service area map is added when at least a fifth of that map lies in those counties. Towns are the ones EPA lists and the Census places such a map covers, always inside those counties. In New England, where EPA's town names a whole Town, it is not matched to the village of the same name. A system is not listed in a county holding less than a fifth of its map, or in a county or town its map reaches when the map lies mostly outside the counties EPA lists, so a page can leave out a system that serves part of the area. Methodology and limitations