Maine Water Quality
Health violation data for 361 community water systems in Maine. Based on EPA Safe Drinking Water Information System (SDWIS) data.
Water Systems
361
Total Violations
799
Systems with Violations
50
Cities with Issues
87
Water Systems with Most Violations
| # | Water System | Violations | Health |
|---|---|---|---|
| 1 | MARS HILL AND BLAINE WATER COMPANY Mars Hill | 126 | Yes |
| 2 | LORING DEVELOPMENT AUTHORITY Wiscasset | 60 | Yes |
| 3 | LONG POND WATER DISTRICT Sullivan | 56 | Yes |
| 4 | US COASTGUARD STATION-JONESPORT Waterville | 42 | Yes |
| 5 | UNITY BY THE STREAM LLC Hancock | 41 | Yes |
| 6 | SUGARLOAF WATER ASSOCIATION Carrabassett Valley | 28 | Yes |
| 7 | JACKMAN UTILITY DISTRICT Jackman | 22 | Yes |
| 8 | ELLSWORTH WATER DEPARTMENT Surry | 21 | Yes |
| 9 | VINALHAVEN WATER DISTRICT Poland | 21 | Yes |
| 10 | JAY VILLAGE WATER DISTRICT Jay | 18 | Yes |
| 11 | BOUDREAU TRAILER PARK Princeton | 15 | Yes |
| 12 | HEBRON WATER COMPANY Turner | 14 | Yes |
| 13 | STONINGTON WATER COMPANY Winterport | 12 | Yes |
| 14 | ST. JOHN'S RIVER CLUB UTILITIES Gray | 11 | Yes |
| 15 | CRYSTAL SPRING ESTATES Dover-foxcroft | 10 | Yes |
| 16 | POLAND COUNTRY VILLAGE MHP INC East Poland | 10 | Yes |
| 17 | SOUTH BERWICK WATER DISTRICT South Berwick | 10 | Yes |
| 18 | WEST PARIS WATER DISTRICT West Paris | 10 | Yes |
| 19 | SPINSFIELD COMMONS Bangor | 10 | Yes |
| 20 | HALLOWELL ROAD MOBILE HOME PARK Wiscasset | 10 | Yes |
| 21 | PITTSFIELD WATER DEPT Winterport | 9 | Yes |
| 22 | VILLAGE AT ROCKPORT #1 Camden | 9 | Yes |
| 23 | PASSAMAQUODDY WATER DISTRICT Eastport | 7 | Yes |
| 24 | GAELIC SQUARE HOUSING Bangor | 7 | Yes |
| 25 | SOUTHWEST HARBOR WATER & SEWER DISTRICT Southwest Harbor | 7 | Yes |
| 26 | BERWICK WATER DEPARTMENT Saco | 6 | Yes |
| 27 | BUCKFIELD VILLAGE CORPORATION Buckfield | 6 | Yes |
| 28 | CANTON WATER DISTRICT Canton | 6 | Yes |
| 29 | SUNNY GABLES- GLENBURN HOUSING Bangor | 6 | Yes |
| 30 | LIVERMORE FALLS WATER DISTRICT Livermore Falls | 6 | Yes |
| 31 | BLUE HILL TERRACE Stonington | 6 | Yes |
| 32 | STONINGTON MANOR Stonington | 6 | Yes |
| 33 | HARMON PINES DEVELOPMENT Portland | 6 | Yes |
| 34 | SUNRISE SERENITY TP Sabattus | 6 | Yes |
| 35 | HINGHAM HEIGHTS Hermon | 6 | Yes |
| 36 | GRAY WATER DISTRICT Gray | 5 | Yes |
| 37 | MONSON UTILITIES DISTRICT Monson | 5 | Yes |
| 38 | WALDOBORO WATER DEPT Poland | 5 | Yes |
| 39 | PIPER STREAM MOBILE HOME PARK Swanville | 5 | Yes |
| 40 | 322 ROOSEVELT TRAIL Westbrook | 4 | Yes |
| 41 | LISBON WATER DEPARTMENT Lisbon | 4 | Yes |
| 42 | ST FRANCIS WATER DISTRICT St Francis | 4 | Yes |
| 43 | POND & POND TRAILER PARK Naples | 4 | Yes |
| 44 | HANCOCK VILLAGE MHP Castine | 3 | Yes |
| 45 | SQUIRE COURT LLC Portland | 3 | Yes |
| 46 | BIRCH HAVEN TRAILER PARK Ellsworth | 3 | Yes |
| 47 | MAINE WATER COMPANY BIDDEFORD SACO DIV Poland | 3 | Yes |
| 48 | GREAT SALT BAY SANITARY DISTRICT Damariscotta | 3 | Yes |
| 49 | GUILFORD-SANGERVILLE UTILITIES DISTRICT Sangerville | 3 | Yes |
| 50 | MILO WATER DISTRICT Milo | 3 | Yes |
Most Common Contaminants in Maine
| Contaminant | Violations | Systems Affected |
|---|---|---|
| Total Trihalomethanes (TTHM) | 254 | 16 |
| Haloacetic Acids (HAA5) | 188 | 11 |
| Combined Radium 226/228 | 127 | 66 |
| Barium | 102 | 11 |
| E. coli | 55 | 19 |
| Copper | 16 | 2 |
| Turbidity | 11 | 3 |
| Arsenic | 11 | 6 |
| Nitrate | 8 | 3 |
| Lead (Action Level) | 6 | 2 |
| Total Coliform (RTCR) | 4 | 3 |
| Chlorine | 3 | 2 |
| Contaminant 1015 | 2 | 1 |
| Gross Alpha | 1 | 1 |
| Lead & Copper Rule | 1 | 1 |
Cities with Water Quality Issues
North Berwick Gorham Saco Sanford Westbrook Portland Auburn Jay Lewiston Lisbon Poland Winthrop Bangor Wiscasset Easton Thomaston Waterville Phillips Hampden Hancock Gray Brewer Castine Dover-foxcroft Swanville Sabattus Turner Orono Palmyra Cumberland East Poland Fort Kent Freeport Ellsworth Newport Holden Lebanon Limerick Alfred Burnham +47 more
Explore More
About This Data
Water quality data is from the EPA Safe Drinking Water Information System (SDWIS). Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations. Only community water systems (CWS) in Maine are included.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.