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Somerset County, Pennsylvania — public water systems

At a glance

102 active public water systems are filed under Somerset County, Pennsylvania in EPA's SDWIS records, together reporting 67,819 people served. The largest is Windber Area Auth, which reports serving 9,463 people. 33 are community water systems serving people where they live; the other 69 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

102

Population served

67.8K

Community systems

33

Groundwater share

90.2%

How does Somerset County compare with other Pennsylvania counties?

Somerset County has the 26th-most active public water systems among the 99 counties listed for active Pennsylvania systems in EPA records; among the 71 with 3 or more systems, the median has 76. Its systems report 67,819 people served in total, the 34th-largest county figure in the state and 0.5% of the statewide total. The average system here reports serving 665 people, about 62% below the Pennsylvania average of 1,741. 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 Somerset County's drinking water come from?

By primary water source, Somerset County's active systems draw on groundwater (89, 87%), purchased surface water (7, 6.9%), surface water (3, 2.9%) and purchased groundwater (2, 2%). Overall, 90% rely mainly on groundwater (including purchased groundwater) and 9.8% on surface water, compared with 93% and 6.8% across Pennsylvania. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Windber Area Auth, draws primarily on groundwater.

What kinds of water systems operate in Somerset County?

Somerset County's active systems break down as 33 community systems (32%), 7 non-transient non-community systems (6.9%) and 62 transient non-community systems (61%). 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 (40%), local government (29%), public/private partnership (26%) and state government (2%).

The 50 largest water systems in Somerset County

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Active public water systems in Somerset County, Pennsylvania
#Water systemCountyPopulation servedTypeSource
1Windber Area AuthSomerset9,463CommunityGroundwater
2Conemaugh Twp Muni AuthSomerset7,800CommunitySurface water
3Somerset Boro Muni Water AuthSomerset6,309CommunityPurchased surface water
4Somerset Twp Muni Auth OakridgSomerset3,800CommunityPurchased surface water
5Seven Springs Muni AuthSomerset3,000CommunityGroundwater under influence of surface water
6Boswell Boro Muni AuthSomerset2,900CommunityPurchased surface water
7Meyersdale Muni AuthSomerset2,566CommunitySurface water
8Berlin Boro Muni AuthSomerset2,468CommunityGroundwater
9Central City Water AuthSomerset1,984CommunityGroundwater
10Jennerstown Muni AuthSomerset1,625CommunityGroundwater
11Flight 93 National MemorialSomerset1,500Transient non-communityGroundwater
12Somerset Cnty Fair AssnSomerset1,500Transient non-communityGroundwater
13Lincoln Twp Muni AuthSomerset1,400CommunityPurchased surface water
14Somerset Twp M A FriedensSomerset1,374CommunityPurchased surface water
15Rockwood Boro Muni AuthSomerset1,250CommunityGroundwater
16Indian Lake Boro WaterworksSomerset1,246CommunityGroundwater
17Cairnbrook Improvement AssnSomerset910CommunityGroundwater
18Hidden Valley Resort LpSomerset750CommunityGroundwater
19Salisbury Boro Water CommSomerset725CommunityGroundwater
20Gray Area Watr Auth of Jen TwpSomerset700CommunityGroundwater
21Confluence Boro Muni AuthSomerset645CommunityGroundwater
22Hooversville BoroSomerset645CommunityPurchased surface water
23Jenner Twp Muni AuthSomerset576CommunityPurchased surface water
24Hickory Hollow CampgroundSomerset500Transient non-communityGroundwater
25Woodland CampsitesSomerset500Transient non-communityGroundwater
26Springs Historical SocietySomerset500Transient non-communityGroundwater
27Somerset Twp Ma Reading MinesSomerset494CommunityGroundwater
28Shanksville Stonycreek SchSomerset460Non-transient non-communityGroundwater
29Turkeyfoot Valley SchSomerset450Non-transient non-communityGroundwater
30Garrett Boro Water SysSomerset449CommunityGroundwater
31Summers Best Two WeeksSomerset400Transient non-communityGroundwater
32Deer Valley Ymca CampSomerset400Transient non-communityGroundwater
33Jefferson Twp Water and SewerSomerset350CommunityPurchased groundwater
34Hanks DinerSomerset350Transient non-communityGroundwater
35North Star East Mid SchSomerset325Non-transient non-communityGroundwater
36Summers Best 2 Weeks QueSomerset300Transient non-communityGroundwater
37Outdoor Odyssey at Roaring RunSomerset300Transient non-communityGroundwater
38Que Family Rec AreaSomerset300Transient non-communityGroundwater
39Rittenhouse Somerfield Be&CppgSomerset300Transient non-communityGroundwater
40Addison Area Water AuthSomerset284CommunityGroundwater
41Camp AlleghenySomerset250Transient non-communityGroundwater
42Somerset Twp Mun Auth ListieSomerset218CommunityGroundwater
43American Legion Post 257Somerset200Transient non-communityGroundwater
44Lost Mtn CampgroundSomerset200Transient non-communityGroundwater
45Scottyland USASomerset200Transient non-communityGroundwater
46Oakhurst Grille&EventscenterSomerset200Transient non-communityGroundwater
47The AlleySomerset200Transient non-communityGroundwater
48Camp Harmony Main CampSomerset200Transient non-communityGroundwater
49Snidas Corner StoreSomerset200Transient non-communityGroundwater
50Glades Pike Estates MHP LLCSomerset180CommunityGroundwater

All other water systems in Somerset County (52)

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

Somerset County water systems: frequently asked questions

How many public water systems are in Somerset County, Pennsylvania?

EPA's SDWIS records file 102 active public water systems under Somerset County, Pennsylvania: 33 community systems (32%), 7 non-transient non-community systems (6.9%) and 62 transient non-community systems (61%).

Who supplies drinking water in Somerset County, PA?

The largest community water systems filed under Somerset County are Windber Area Auth (9,463 people served), Conemaugh Twp Muni Auth (7,800 people served) and Somerset Boro Muni Water Auth (6,309 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 Somerset County's drinking water come from groundwater or surface water?

Of the 102 active public water systems in Somerset County, 90% draw mainly on groundwater and 9.8% on surface water, counting purchased supplies. The largest system, Windber Area Auth, uses groundwater.

Where can I find a water quality report for Somerset 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. 33 community systems are filed under Somerset 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 Somerset 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 Pennsylvania 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 Somerset County, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/somerset (data as of October 1, 2026).