Maine tap water quality
348 community water systems
23.8%
exceed lead action level
(82/345 systems)
(82/345 systems)
13.2%
PFOA/PFOS detected
(5/38 systems)
(5/38 systems)
Largest water systems
Lead is the LCR 90th-percentile result; a value above 0.015 mg/L exceeds the
EPA action level. “—” means no lead sample is on file for that system.
| System | City | Population | Lead (p90) |
|---|---|---|---|
| PORTLAND WATER DISTRICT-GREATER | CAPE ELIZABETH | 135,068 | 0.0504 mg/L |
| MAINE WATER COMPANY BIDDEFORD SACO DIV | BIDDEFORD | 42,508 | 0.0094 mg/L |
| KENNEBUNK, KENNEBUNKPORT & WELLS WD | KENNEBUNK | 35,663 | 0.0122 mg/L |
| BANGOR WATER DISTRICT | BANGOR | 27,298 | 0.0300 mg/L |
| LEWISTON WATER & SEWER DIVISION | LEWISTON | 23,720 | 0.0258 mg/L |
| KENNEBEC WATER DISTRICT | FAIRFIELD | 22,060 | 0.0122 mg/L |
| MAINE WATER COMPANY CAMDEN & ROCKLAND | CAMDEN | 21,315 | 0.0290 mg/L |
| BRUNSWICK/TOPSHAM WATER DISTRICT | BRUNSWICK | 18,863 | 0.0040 mg/L |
| AUBURN WATER DISTRICT | AUBURN | 17,245 | 0.0239 mg/L |
| KITTERY WATER DISTRICT | KITTERY | 14,478 | 0.0082 mg/L |
| SANFORD WATER DISTRICT | SANFORD | 14,328 | 0.0117 mg/L |
| GREATER AUGUSTA UTILITY DISTRICT | AUGUSTA | 13,750 | 0.0300 mg/L |
| YORK WATER DISTRICT | YORK | 13,675 | 0.0132 mg/L |
| BATH WATER DISTRICT | BATH | 9,205 | 0.0210 mg/L |
| GARDINER WATER DISTRICT | GARDINER | 9,000 | 0.0034 mg/L |
| BREWER WATER DEPARTMENT | BREWER | 8,860 | 0.0530 mg/L |
| BOOTHBAY REGION WATER DISTRICT | BOOTHBAY | 8,448 | 0.0170 mg/L |
| YARMOUTH WATER DISTRICT | NORTH YARMOUTH | 8,000 | 0.0122 mg/L |
| OLD TOWN WATER DISTRICT | OLD TOWN | 7,648 | 0.0108 mg/L |
| LISBON WATER DEPARTMENT | LISBON | 6,643 | 0.0074 mg/L |
| PRESQUE ISLE UTILITIES DISTRICT | PRESQUE ISLE | 6,128 | 0.0690 mg/L |
| MAINE WATER COMPANY SKOWHEGAN DIVISION | SKOWHEGAN | 6,105 | 0.0112 mg/L |
| ORONO-VEAZIE WATER DISTRICT | ORONO | 5,793 | 0.0130 mg/L |
| BELFAST WATER DISTRICT | BELFAST | 5,698 | 0.0086 mg/L |
| ANSON AND MADISON WATER DISTRICT | ANSON | 5,568 | 0.0130 mg/L |
| MAINE WATER COMPANY MILLINOCKET DIVISION | MILLINOCKET | 5,400 | 0.0100 mg/L |
| HOULTON WATER COMPANY | HOULTON | 4,735 | 0.0085 mg/L |
| HAMPDEN WATER DISTRICT | HAMPDEN | 4,628 | 0.0530 mg/L |
| TOWN OF BAR HARBOR- WATER DIVISION | BAR HARBOR | 4,443 | 0.0100 mg/L |
| RUMFORD WATER DISTRICT | RUMFORD | 4,050 | 0.0159 mg/L |
| FARMINGTON VILLAGE CORP WATER DEPT | FARMINGTON | 4,050 | 0.0147 mg/L |
| CARIBOU UTILITIES DISTRICT | CARIBOU | 3,943 | 0.0082 mg/L |
| ELLSWORTH WATER DEPARTMENT | ELLSWORTH | 3,910 | 0.0143 mg/L |
| SOUTH BERWICK WATER DISTRICT | BERWICK | 3,722 | 0.0078 mg/L |
| BRIDGTON WATER DISTRICT | BRIDGTON | 3,660 | 0.0112 mg/L |
| LAKE ARROWHEAD COMMUNITY INC | WATERBORO | 3,500 | 0.0240 mg/L |
| PITTSFIELD WATER DEPT | PITTSFIELD | 3,228 | 0.0070 mg/L |
| LINCOLN WATER DISTRICT | LINCOLN | 3,020 | 0.0090 mg/L |
| LIVERMORE FALLS WATER DISTRICT | LIVERMORE | 2,995 | 0.0121 mg/L |
| PARIS UTILITY DISTRICT | PARIS | 2,940 | 0.0116 mg/L |
| MAINE WATER COMPANY OAKLAND DIVISION | OAKLAND | 2,873 | 0.0100 mg/L |
| BERWICK WATER DEPARTMENT | BERWICK | 2,845 | 0.0380 mg/L |
| WILTON WATER DEPARTMENT | WILTON | 2,800 | 0.0134 mg/L |
| CALAIS WATER DEPT | CALAIS | 2,775 | 0.0454 mg/L |
| SEARSPORT WATER DISTRICT | SEARSPORT | 2,763 | 0.0122 mg/L |
| WINTHROP UTILITIES DISTRICT | WINTHROP | 2,750 | 0.0400 mg/L |
| MADAWASKA WATER DISTRICT | MADAWASKA | 2,738 | 0.0400 mg/L |
| MAINE WATER COMPANY FREEPORT DIVISION | FREEPORT | 2,700 | 0.0043 mg/L |
| SOUTHWEST HARBOR WATER & SEWER DISTRICT | SOUTHWEST HBR | 2,480 | 0.0080 mg/L |
| GRAY WATER DISTRICT | GRAY | 2,468 | 0.0072 mg/L |
| MEXICO WATER DISTRICT | MEXICO | 2,425 | 0.0050 mg/L |
| DOVER-FOXCROFT WATER DISTRICT | DOVER-FOXCROFT | 2,400 | 0.0100 mg/L |
| DEXTER UTILITY DISTRICT | DEXTER | 2,338 | 0.0270 mg/L |
| HALLOWELL WATER DISTRICT | HALLOWELL | 2,300 | 0.0074 mg/L |
| VAN BUREN WATER DISTRICT | VAN BUREN | 2,190 | 0.0085 mg/L |
| GREAT SALT BAY SANITARY DISTRICT | DAMARISCOTTA | 2,143 | 0.0281 mg/L |
| EAST MILLINOCKET WATER WORKS | EAST MILLINOCKET | 2,133 | 0.0060 mg/L |
| NORTH BERWICK WATER DISTRICT | NORTH BERWICK | 2,125 | 0.0107 mg/L |
| PASSAMAQUODDY WATER DISTRICT | EASTPORT | 2,125 | 0.0052 mg/L |
| FRYEBURG WATER COMPANY | FRYEBURG | 2,085 | 0.0150 mg/L |
| FORT FAIRFIELD UTILITIES DISTRICT | FORT FAIRFIELD | 2,025 | 0.0128 mg/L |
| MECHANIC FALLS WATER DEPT | MECHANIC FALLS | 2,010 | 0.0071 mg/L |
| NORWAY WATER DISTRICT | NORWAY | 2,000 | 0.0047 mg/L |
| WISCASSET WATER DISTRICT | WISCASSET | 1,970 | 0.0110 mg/L |
| NEWPORT WATER DISTRICT | NEWPORT | 1,900 | 0.0348 mg/L |
| BETHEL WATER DISTRICT | BETHEL | 1,813 | 0.0144 mg/L |
| LUBEC WATER DISTRICT | LUBEC | 1,775 | 0.0066 mg/L |
| SUGARLOAF WATER ASSOCIATION | CARRABASSETT VL | 1,730 | 0.0421 mg/L |
| MILO WATER DISTRICT | MILO | 1,720 | 0.0140 mg/L |
| MAINE WATER COMPANY BUCKSPORT DIVISION | BUCKSPORT | 1,700 | 0.0137 mg/L |
| BAILEYVILLE UTILITIES DISTRICT | BAILEYVILLE | 1,688 | 0.0067 mg/L |
| MOUNT DESERT WATER DIST NORTH | MOUNT DESERT | 1,623 | 0.0450 mg/L |
| FORT KENT W & W DEPARTMENT | FORT KENT | 1,578 | 0.0140 mg/L |
| SABATTUS SANITARY DISTRICT | SABATTUS | 1,550 | 0.0063 mg/L |
| GUILFORD-SANGERVILLE UTILITIES DISTRICT | ABBOT | 1,535 | 0.0240 mg/L |
| MARS HILL AND BLAINE WATER COMPANY | MARS HILL | 1,500 | 0.0080 mg/L |
| DIXFIELD WATER & SEWER DEPT | DIXFIELD | 1,415 | 0.0386 mg/L |
| MACHIAS WATER COMPANY | MACHIAS | 1,390 | 0.0094 mg/L |
| RICHMOND UTILITIES DISTRICT | RICHMOND | 1,390 | 0.0196 mg/L |
| RANGELEY WATER DISTRICT | DALLAS PLT | 1,378 | 0.0228 mg/L |
| MAINE WATER COMPANY GREENVILLE DIVISION | GREENVILLE | 1,335 | 0.0068 mg/L |
| JACKMAN UTILITY DISTRICT | JACKMAN | 1,125 | 0.0250 mg/L |
| MAINE WATER COMPANY KEZAR FALLS DIVISION | HIRAM | 1,115 | 0.0120 mg/L |
| OXFORD WATER DISTRICT | OXFORD | 1,100 | 0.0041 mg/L |
| BINGHAM WATER DISTRICT | BINGHAM | 1,075 | 0.0049 mg/L |
| WALDOBORO WATER DEPT | WALDOBORO | 1,065 | 0.0269 mg/L |
| NORRIDGEWOCK WATER DISTRICT | NORRIDGEWOCK | 1,055 | 0.0037 mg/L |
| VINALHAVEN WATER DISTRICT | VINALHAVEN | 1,053 | 0.0452 mg/L |
| MAINE WATER COMPANY HARTLAND DIVISION | HARTLAND | 1,043 | 0.0244 mg/L |
| HOWLAND WATER DEPARTMENT | HOWLAND | 1,025 | 0.0070 mg/L |
| CLINTON WATER DISTRICT | CLINTON | 1,013 | 0.0039 mg/L |
| CASTINE WATER DEPARTMENT | CASTINE | 983 | 0.0182 mg/L |
| JAY VILLAGE WATER DISTRICT | JAY | 975 | 0.0130 mg/L |
| SOUTH FREEPORT WATER DISTRICT | FREEPORT | 960 | 0.0099 mg/L |
| KINGFIELD WATER DISTRICT | KINGFIELD | 950 | 0.0100 mg/L |
| PEQUOT HIGHLANDS | SALEM | 900 | 0.0008 mg/L |
| LIMESTONE WATER & SEWER DISTRICT | LIMESTONE | 875 | 0.0130 mg/L |
| MOUNT DESERT WATER DIST -SEAL | MOUNT DESERT | 865 | 0.0386 mg/L |
| HARRISON WATER DISTRICT | HARRISON | 863 | 0.0110 mg/L |
| MAINE WATER COMPANY WARREN DIVISION | WARREN | 815 | 0.0058 mg/L |