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Lincoln County, Maine — public water systems

At a glance

84 active public water systems are filed under Lincoln County, Maine in EPA's SDWIS records, together reporting 24,301 people served. The largest is Boothbay Region Water District, which reports serving 8,448 people. 12 are community water systems serving people where they live; the other 72 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.

Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.

Active systems

84

Population served

24.3K

Community systems

12

Groundwater share

96.4%

How does Lincoln County compare with other Maine counties?

Lincoln County has the 11th-most active public water systems among the 17 counties listed for active Maine systems in EPA records; among the 16 with 3 or more systems, the median has 105. Its systems report 24,301 people served in total, the 11th-largest county figure in the state and 2.6% of the statewide total. The average system here reports serving 289 people, about 43% below the Maine average of 503. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.

Where does Lincoln County's drinking water come from?

By primary water source, Lincoln County's active systems draw on groundwater (81, 96%), surface water (2, 2.4%) and purchased surface water (1, 1.2%). Overall, 96% rely mainly on groundwater (including purchased groundwater) and 3.6% on surface water, compared with 96% and 3.7% across Maine. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Boothbay Region Water District, draws primarily on surface water.

What kinds of water systems operate in Lincoln County?

Lincoln County's active systems break down as 12 community systems (14%), 26 non-transient non-community systems (31%) and 46 transient non-community systems (55%). A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. EPA lists their owner types as private (79%), local government (20%) and state government (1.2%).

The 50 largest water systems in Lincoln County

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Active public water systems in Lincoln County, Maine
#Water systemCountyPopulation servedTypeSource
1Boothbay Region Water DistrictLincoln8,448CommunitySurface water
2Great Salt Bay Sanitary DistrictLincoln2,143CommunitySurface water
3Wiscasset Water DistrictLincoln1,970CommunityPurchased surface water
4Waldoboro Water DeptLincoln1,065CommunityGroundwater
5Lake Pemaquid CampgroundLincoln808Transient non-communityGroundwater
6Rsu 40 Medomak Valley High SchoolLincoln669Non-transient non-communityGroundwater
7Glidden Point Oyster CompanyLincoln399Transient non-communityGroundwater
8Anchor InnLincoln323Transient non-communityGroundwater
9Rsu 40 Medomak Middle SchoolLincoln320Non-transient non-communityGroundwater
10Pemaquid Beach ParkLincoln306Transient non-communityGroundwater
11Mdoc State Park-Damariscotta LakeLincoln303Transient non-communityGroundwater
12Monhegan Water CompanyLincoln300Transient non-communityGroundwater
13Duck Puddle Campground #2Lincoln295Transient non-communityGroundwater
14Aos 93 Jefferson Village SchoolLincoln288Non-transient non-communityGroundwater
15Wavus Camps-Main Lodge & KitchenLincoln280Transient non-communityGroundwater
16CovesideLincoln246Transient non-communityGroundwater
17Aos 93 Bristol Consolidated SchoolLincoln243Non-transient non-communityGroundwater
18The Monhegan HouseLincoln236Transient non-communityGroundwater
19The Contented SoleLincoln220Transient non-communityGroundwater
20Rsu 12 Whitefield Elementary SchoolLincoln211Non-transient non-communityGroundwater
21Bullwinkles Family SteakhouseLincoln210Transient non-communityGroundwater
22Out of Doors LLCLincoln202Transient non-communityGroundwater
23Bradley InnLincoln193Transient non-communityGroundwater
24Aos 93 Nobleboro Central SchoolLincoln170Non-transient non-communityGroundwater
25New Harbor-SouthLincoln163Transient non-communityGroundwater
26Sherres KitchenLincoln161Transient non-communityGroundwater
27Sherwood Forest Cmpgrd #2Lincoln156Transient non-communityGroundwater
28Town Line Camping LLCLincoln138Transient non-communityGroundwater
29Wawenock Golf ClubLincoln134Transient non-communityGroundwater
30The Seagull ShopLincoln130Transient non-communityGroundwater
31Pemaquid Point CampgroundLincoln126Transient non-communityGroundwater
32Starboard CafeLincoln125Transient non-communityGroundwater
33The Cubbyhole Sports PubLincoln119Transient non-communityGroundwater
34Chewonki CampgroundsLincoln118Transient non-communityGroundwater
35Damariscotta Montessori SchoolLincoln112Non-transient non-communityGroundwater
36Coastal Maine Botanical GardensLincoln110Non-transient non-communityGroundwater
37Indian Run Estates LLCLincoln103CommunityGroundwater
38Um Darling Marine Ctr (Well6)Lincoln100Transient non-communityGroundwater
39Duck Puddle Campground #1Lincoln100Transient non-communityGroundwater
40Pemaquid Point Lighthouse ParkLincoln100Transient non-communityGroundwater
41Aos 98 Edgecomb Eddy Elementary IiLincoln100Non-transient non-communityGroundwater
42New Harbor-NorthLincoln95Transient non-communityGroundwater
43Chewonki Foundation #2Lincoln95Non-transient non-communityGroundwater
44Dresden Elem SchoolLincoln91Non-transient non-communityGroundwater
45Renys Distribution CenterLincoln90Non-transient non-communityGroundwater
46Masters Machine CompanyLincoln88Non-transient non-communityGroundwater
47Center for Teaching/LearningLincoln87Non-transient non-communityGroundwater
48Whippoorwill Hill Mobile HomeLincoln85CommunityGroundwater
49Sheepscot Valley Childrens HouseLincoln85Non-transient non-communityGroundwater
50Coastal Christian SchoolLincoln80Non-transient non-communityGroundwater

All other water systems in Lincoln County (34)

The remaining active systems filed under Lincoln County, largest first, with the population each reports serving.

Lincoln County water systems: frequently asked questions

How many public water systems are in Lincoln County, Maine?

EPA's SDWIS records file 84 active public water systems under Lincoln County, Maine: 12 community systems (14%), 26 non-transient non-community systems (31%) and 46 transient non-community systems (55%).

Who supplies drinking water in Lincoln County, ME?

The largest community water systems filed under Lincoln County are Boothbay Region Water District (8,448 people served), Great Salt Bay Sanitary District (2,143 people served) and Wiscasset Water District (1,970 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.

Does Lincoln County's drinking water come from groundwater or surface water?

Of the 84 active public water systems in Lincoln County, 96% draw mainly on groundwater and 3.6% on surface water, counting purchased supplies. The largest system, Boothbay Region Water District, uses surface water.

Where can I find a water quality report for Lincoln County?

Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year. 12 community systems are filed under Lincoln County, so the report to look for is the one from the system that supplies your address.

How can I check violations for a water system in Lincoln County?

Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.

More Maine water systems

About this data

Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.

Cite as: AquaCensus, “Public water systems in Lincoln County, Maine”, https://aquacensus.com/water-systems/maine/lincoln (data as of October 1, 2026).