Lead pipes in Maine

Maine's 386 community water systems reported 30 lead and 1,604 galvanized-requiring-replacement service lines, plus 36,238 of unknown material. That ranks #46 among states for confirmed lead lines.

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30Lead

1,604Galvanized, replace

36,238Unknown

41Systems with lead

• Lead <0.1%
• Galvanized (replace) 0.5%
• Unknown 12%
• Non-lead 87%

0.6% of the service lines Maine utilities reported are lead or galvanized requiring replacement, well below the national share of 3.1%. 12% are still unidentified (national: 21%). The largest counts are in Houlton Water Company (421), Bangor Water District (410), Lisbon Water Department (164). 3 systems haven't reported counts yet.

Since 2025 Q1, reported lead and galvanized lines in Maine went from 1,652 to 1,634 (down 18). See which systems made the most progress.

Systems with confirmed lead lines (41)

Water system	Lead	Galv.	Unknown	% lead	People
Houlton Water CompanyHoulton	0	421	1,252	20%	4,735
Bangor Water DistrictBangor	4	406	275	4.0%	27,298
Lisbon Water DepartmentLisbon	10	154	460	4.8%	6,643
Kittery Water DistrictKittery	0	121	1,198	1.9%	14,478
Greater Augusta Utility DistrictAugusta	9	89	229	1.7%	13,750
Lewiston Water & Sewer DivisionLewiston	1	73	6,025	0.8%	23,720
Gardiner Water DistrictGardiner	0	66	1,208	2.1%	9,000
Pittsfield Water DeptPittsfield	0	36	941	2.9%	3,228
Dover-Foxcroft Water DistrictDover-Foxcroft	0	32	436	3.0%	2,400
Ellsworth Water DepartmentEllsworth	2	24	313	1.5%	3,910
Limestone Water & Sewer DistrictLimestone	0	21	60	6.6%	875
East Millinocket Water WorksEast Millinocket	0	19	0	2.2%	2,133
Calais Water DeptCalais	0	10	1,018	0.8%	2,775
Milo Water DistrictMilo	0	10	507	1.3%	1,720
Wilton Water DepartmentWilton	0	10	13	1.0%	2,800
Baileyville Utilities DistrictBaileyville	0	9	518	1.4%	1,688
Lincoln Water DistrictLincoln	0	9	0	0.7%	3,020
Old Town Water DistrictOld Town	0	8	2,695	0.2%	7,648
Brunswick/Topsham Water DistrictBrunswick	0	8	1,907	<0.1%	18,863
South Berwick Water DistrictBerwick	0	8	123	0.5%	3,722
Richmond Utilities DistrictRichmond	0	8	60	1.3%	1,492
Gray Water DistrictGray	0	8	5	0.7%	2,468
Caribou Utilities DistrictCaribou	0	7	1,494	0.4%	3,943
Strong Water DistrictStrong	0	7	38	3.4%	500
Yarmouth Water DistrictNorth Yarmouth	0	6	1,272	0.2%	8,000
Washburn Water & Sewer DistrictWashburn	0	6	0	2.1%	688
Lubec Water DistrictLubec	0	4	337	0.5%	1,775
Norway Water DistrictNorway	4	0	289	0.5%	2,043
Stonington Water CompanyStonington	0	4	0	1.5%	683
Mount Desert Water Dist -SealMount Desert	0	3	126	0.9%	865
Winterport Water DistrictWinterport	0	3	36	0.9%	763
Brownville JCT Water DeptBrownville	0	3	1	0.9%	663
Cornish Water DistrictCornish	0	2	163	0.6%	758
Sunset Gardens Trailer Park INCLewiston	0	2	0	6.7%	73
Brewer Water DepartmentBrewer	0	1	397	<0.1%	8,860
Oxford Water DistrictOxford	0	1	150	0.2%	1,100
Northport Village Corp Water DeptNorthport	0	1	31	0.3%	550
Machias Water CompanyMachias	0	1	16	0.2%	1,390
Brownville Water DepartmentBrownville	0	1	4	0.8%	253
Great Salt Bay Sanitary DistrictDamariscotta	0	1	2	0.1%	2,143
Downeast Correctional FacilityMachiasport	0	1	1	9.1%	63

No confirmed lead, but unknown lines remain (49)

Water system	Lead	Galv.	Unknown	% lead	People
Auburn Water DistrictAuburn	0	0	3,373	0%	17,245
Boothbay Region Water DistrictBoothbay	0	0	1,486	0%	8,448
Rumford Water DistrictRumford	0	0	1,294	0%	4,050
Mexico Water DistrictMexico	0	0	813	0%	2,425
Fort Fairfield Utilities DistrictFort Fairfield	0	0	768	0%	2,025
Anson and Madison Water DistrictAnson	0	0	752	0%	5,568
Dixfield Water & Sewer DeptDixfield	0	0	632	0%	1,415
Hallowell Water DistrictHallowell	0	0	362	0%	2,300
Mount Desert Water Dist NorthMount Desert	0	0	331	0%	1,623
Howland Water DepartmentHowland	0	0	313	0%	1,025
Keywood Manor MHP LLCAlfred	0	0	274	0%	411
Kennebunk, Kennebunkport & Wells WDKennebunk	0	0	233	0%	35,663
West Paris Water DistrictWest Paris	0	0	216	0%	540
Newport Water DistrictNewport	0	0	149	0%	1,900
Southwest Harbor Water & Sewer DistrictSouthwest Hbr	0	0	133	0%	2,480
Guilford-Sangerville Utilities DistrictAbbot	0	0	121	0%	1,535
Bingham Water DistrictBingham	0	0	113	0%	1,075
Marshwood EstatesEliot	0	0	108	0%	270
Grand Isle Water SystemGrand Isle	0	0	107	0%	278
Orono-Veazie Water DistrictOrono	0	0	105	0%	5,793
Winter Harbor Water DistrictWinter Harbor	0	0	105	0%	700
Island Falls Water DeptIsland Falls	0	0	89	0%	475
Jackman Utility DistrictJackman	0	0	84	0%	1,125
Sanford Water DistrictSanford	0	0	66	0%	14,328
Bowdoinham Water DistrictBowdoinham	0	0	60	0%	738
Castine Water DepartmentCastine	0	0	53	0%	983
Mechanic Falls Water DeptMechanic Falls	0	0	52	0%	2,010
Blueberry Ridge Mobile VillageWells	0	0	50	0%	138
Indian Township Tribal Water SystemIndian Twp St Ind Rs	0	0	46	0%	535
East Vassalboro Water Company LLCVassalboro	0	0	46	0%	205
Pinewood ParkSanford	0	0	41	0%	108
St Francis Water DepartmentSt Francis	0	0	38	0%	100
Winthrop Utilities DistrictWinthrop	0	0	30	0%	2,750
Buckfield Village CorporationBuckfield	0	0	30	0%	425
Danforth Water DistrictDanforth	0	0	28	0%	313
Marsh Brook EstatesSanford	0	0	28	0%	70
White Tail Ridge AssociationBridgton	0	0	27	0%	123
Mountainside Mobile Home ParkCamden	0	0	18	0%	130
Machias Trailer ParkMachias	0	0	16	0%	89
York Water DistrictYork	0	0	11	0%	13,675
Limerick Mobile Home Park LLCLimerick	0	0	9	0%	115
Dexter Utility DistrictDexter	0	0	8	0%	2,338
Hampden Water DistrictHampden	0	0	6	0%	4,800
Norridgewock Water DistrictNorridgewock	0	0	5	0%	1,055
Towne Center-Ridgewood ApartmentsHermon	0	0	3	0%	60
Princeton Water DistrictPrinceton	0	0	2	0%	75
Lakes Region ApartmentsChina	0	0	2	0%	40
Allen Water CompanyColumbia	0	0	1	0%	50
Weeks Mills Water SystemChina	0	0	1	0%	45

No lead or unknown lines reported (38)

Systems serving 1,000 or more people. Systems without counts on file are listed as 0.

Water system	Lead	Galv.	Unknown	% lead	People
Portland Water District-GreaterCape Elizabeth	0	0	0	0%	135,068
Maine Water Company Biddeford Saco DivBiddeford	0	0	0	0%	42,508
Kennebec Water DistrictFairfield	0	0	0	0%	22,060
Maine Water Company Camden & RocklandCamden	0	0	0	0%	21,315
Bath Water DistrictBath	0	0	0	0%	9,205
Presque Isle Utilities DistrictPresque Isle	0	0	0	0%	6,128
Maine Water Company Skowhegan DivisionSkowhegan	0	0	0	0%	6,105
Belfast Water DistrictBelfast	0	0	0	0%	5,698
Maine Water Company Millinocket DivisionMillinocket	0	0	0	0%	5,400
Town of Bar Harbor- Water DivisionBar Harbor	0	0	0	0%	4,443
Farmington Village Corp Water DeptFarmington	0	0	0	0%	4,050
Bridgton Water DistrictBridgton	0	0	0	0%	3,660
Lake Arrowhead Community INCWaterboro	0	0	0	0%	3,500
Livermore Falls Water DistrictLivermore	0	0	0	0%	2,995
Paris Utility DistrictParis	0	0	0	0%	2,940
Maine Water Company Oakland DivisionOakland	0	0	0	0%	2,873
Berwick Water DepartmentBerwick	0	0	0	0%	2,845
Searsport Water DistrictSearsport	0	0	0	0%	2,763
Madawaska Water DistrictMadawaska	0	0	0	0%	2,738
Maine Water Company Freeport DivisionFreeport	0	0	0	0%	2,700
Van Buren Water DistrictVan Buren	0	0	0	0%	2,190
Passamaquoddy Water DistrictEastport	0	0	0	0%	2,125
North Berwick Water DistrictNorth Berwick	0	0	0	0%	2,125
Fryeburg Water CompanyFryeburg	0	0	0	0%	2,085
Wiscasset Water DistrictWiscasset	0	0	0	0%	1,970
Bethel Water DistrictBethel	0	0	0	0%	1,813
Sugarloaf Water AssociationCarrabassett Vl	0	0	0	0%	1,730
Maine Water Company Bucksport DivisionBucksport	0	0	0	0%	1,700
Sabattus Sanitary DistrictSabattus	0	0	0	0%	1,688
Fort Kent W & W DepartmentFort Kent	0	0	0	0%	1,578
Mars Hill and Blaine Water CompanyMars Hill	0	0	0	0%	1,500
Rangeley Water DistrictDallas Plt	0	0	0	0%	1,378
Maine Water Company Greenville DivisionGreenville	0	0	0	0%	1,335
Maine Water Company Kezar Falls DivisionHiram	0	0	0	0%	1,115
Waldoboro Water DeptWaldoboro	0	0	0	0%	1,065
Vinalhaven Water DistrictVinalhaven	0	0	0	0%	1,053
Maine Water Company Hartland DivisionHartland	0	0	0	0%	1,043
Clinton Water DistrictClinton	0	0	0	0%	1,013

Lead pipes in Maine cities

• Portlandno lead reported
• Lewiston74 lead + galv. lines
• Bangor410 lead + galv. lines
• South Portlandno lead reported
• Auburn3,373 unknown
• Sanford66 unknown
• Biddefordno lead reported
• Westbrookno lead reported
• Sacono lead reported
• Augusta98 lead + galv. lines
• Watervilleno lead reported
• Rocklandno lead reported
• Hallowell362 unknown
• Eastportno lead reported

All Maine cities and towns · Lead pipes by county

Maine lead pipe questions

How many lead pipes are in Maine?

Maine's community water systems reported 30 lead service lines and 1,604 galvanized lines that must be replaced, for 1,634 in total. Another 36,238 lines are of unknown material.

Which Maine water systems have the most lead pipes?

Houlton Water Company (421), Bangor Water District (410), Lisbon Water Department (164). Counts are lead plus galvanized-requiring-replacement lines.

What share of Maine service lines are lead?

0.6% of reported service lines in Maine are lead or galvanized requiring replacement, well below the national figure of 3.1%. 12% are still unknown, compared with 21% nationally.

How do I find out if my Maine home has a lead service line?

Search for your water system or ZIP code above, then open your utility's address-level inventory map. You can also check the pipe where it enters your home with a scratch and magnet test.

Source: EPA SDWIS service line inventory, 2026 Q3. Smaller systems with no lead or unknown lines are omitted. See also national rankings.