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Kennebec County, Maine — public water systems

At a glance

169 active public water systems are filed under Kennebec County, Maine in EPA's SDWIS records, together reporting 79,468 people served. The largest is Kennebec Water District, which reports serving 22,060 people. 31 are community water systems serving people where they live; the other 138 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

169

Population served

79.5K

Community systems

31

Groundwater share

96.4%

How does Kennebec County compare with other Maine counties?

Kennebec County has the 4th-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 79,468 people served in total, the 4th-largest county figure in the state and 8.5% of the statewide total. The average system here reports serving 470 people, roughly in line with 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 Kennebec County's drinking water come from?

By primary water source, Kennebec County's active systems draw on groundwater (163, 96%), surface water (4, 2.4%) and purchased surface water (2, 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, Kennebec Water District, draws primarily on surface water.

What kinds of water systems operate in Kennebec County?

Kennebec County's active systems break down as 31 community systems (18%), 36 non-transient non-community systems (21%) and 102 transient non-community systems (60%). 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 (85%), local government (15%) and state government (0.6%).

The 50 largest water systems in Kennebec County

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Active public water systems in Kennebec County, Maine
#Water systemCountyPopulation servedTypeSource
1Kennebec Water DistrictKennebec22,060CommunitySurface water
2Greater Augusta Utility DistrictKennebec13,750CommunityGroundwater
3Gardiner Water DistrictKennebec9,000CommunityGroundwater
4Maine Water Company Oakland DivisionKennebec2,873CommunityPurchased surface water
5Winthrop Utilities DistrictKennebec2,750CommunitySurface water
6Hallowell Water DistrictKennebec2,300CommunityGroundwater
7Clinton Water DistrictKennebec1,013CommunityGroundwater
8Rsu 38 Maranacook Community SchoolKennebec816Non-transient non-communityGroundwater
9Augusta Country ClubKennebec750Transient non-communityGroundwater
10Camp Laurel-LodgeKennebec710Transient non-communityGroundwater
11Erskine AcademyKennebec685Non-transient non-communityGroundwater
12Camp Manitou #1Kennebec600Transient non-communityGroundwater
13Monmouth Water AssociationKennebec588CommunityPurchased surface water
14Sun Ng Beaver Brook Rv LLC-CampgroundKennebec550Transient non-communityGroundwater
15Camp Manitou #2Kennebec491Transient non-communityGroundwater
16Aos 92 Vassalboro Community SchoolKennebec479Non-transient non-communityGroundwater
17Camp VegaKennebec450Transient non-communityGroundwater
18Camp ModinKennebec425Transient non-communityGroundwater
19Camp Manitou #3Kennebec400Transient non-communityGroundwater
20The Birches CampgroundKennebec395Transient non-communityGroundwater
21Camp CobbosseeKennebec390Transient non-communitySurface water
22Rsu 04 Carrie Ricker SchoolKennebec388Non-transient non-communityGroundwater
23Crystal Falls Dance HallKennebec375Transient non-communityGroundwater
24Camp Kippewa for GirlsKennebec360Transient non-communitySurface water
25Rsu 12 Windsor Elementary SchoolKennebec360Non-transient non-communityGroundwater
26Camp Androscoggin Jr-SrKennebec350Transient non-communityGroundwater
27Kents Hill SchoolKennebec338Non-transient non-communityGroundwater
28Msad 11 Helen Thompson SchoolKennebec331Non-transient non-communityGroundwater
29Maccrillis/Rousseau Vfw PostKennebec330Transient non-communityGroundwater
30Alden Camps-HouseKennebec325Transient non-communityGroundwater
31Augusta West KampgroundKennebec320Transient non-communityGroundwater
32The Village InnKennebec318Transient non-communityGroundwater
33Rsu 18 China Primary SchoolKennebec310Non-transient non-communityGroundwater
34Hope Baptist ChurchKennebec304Transient non-communityGroundwater
35Rsu 18 James H Bean SchoolKennebec300Non-transient non-communityGroundwater
36China Lake Conference Center- DillonKennebec300Transient non-communityGroundwater
37Tj'S PizzeriaKennebec285Transient non-communityGroundwater
38Rsu 18 Belgrade Central SchoolKennebec282Non-transient non-communityGroundwater
39Western View Golf Pub & EventsKennebec278Transient non-communityGroundwater
40New England Music Camp-the LodgeKennebec275Transient non-communityGroundwater
41Rsu 38 Readfield Elementary SchoolKennebec273Non-transient non-communityGroundwater
42Weathervane Restaurant & LoungeKennebec270Transient non-communityGroundwater
43Sunset GrilleKennebec250Transient non-communityGroundwater
44Vista of MaineKennebec240Transient non-communityGroundwater
45Mughal PalaceKennebec235Transient non-communityGroundwater
46Maple Hill Farm Inn & Conference CenterKennebec230Transient non-communityGroundwater
471-7-10 Bowling & Entertainment CenterKennebec221Transient non-communityGroundwater
48Camp WinnebagoKennebec220Transient non-communityGroundwater
49State Ymca CampKennebec220Transient non-communityGroundwater
50Green Valley CampgroundKennebec213Transient non-communityGroundwater

All other water systems in Kennebec County (119)

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

Kennebec County water systems: frequently asked questions

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

EPA's SDWIS records file 169 active public water systems under Kennebec County, Maine: 31 community systems (18%), 36 non-transient non-community systems (21%) and 102 transient non-community systems (60%).

Who supplies drinking water in Kennebec County, ME?

The largest community water systems filed under Kennebec County are Kennebec Water District (22,060 people served), Greater Augusta Utility District (13,750 people served) and Gardiner Water District (9,000 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 Kennebec County's drinking water come from groundwater or surface water?

Of the 169 active public water systems in Kennebec County, 96% draw mainly on groundwater and 3.6% on surface water, counting purchased supplies. The largest system, Kennebec Water District, uses surface water.

Where can I find a water quality report for Kennebec 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. 31 community systems are filed under Kennebec 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 Kennebec 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 Kennebec County, Maine”, https://aquacensus.com/water-systems/maine/kennebec (data as of October 1, 2026).