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Belmont County, Ohio — public water systems

At a glance

20 active public water systems are filed under Belmont County, Ohio in EPA's SDWIS records, together reporting 62,099 people served. The largest is Belmont Co. Sanitary District 3 Pws, which reports serving 26,822 people. 14 are community water systems serving people where they live; the other 6 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

20

Population served

62.1K

Community systems

14

Groundwater share

85%

How does Belmont County compare with other Ohio counties?

Belmont County has the 57th-most active public water systems among the 133 counties listed for active Ohio systems in EPA records; among the 92 with 3 or more systems, the median has 29. Its systems report 62,099 people served in total, the 36th-largest county figure in the state and 0.6% of the statewide total. The average system here reports serving 3,105 people, about 12% above the Ohio average of 2,767. 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 Belmont County's drinking water come from?

By primary water source, Belmont County's active systems draw on groundwater (12, 60%), purchased groundwater (5, 25%) and surface water (3, 15%). Overall, 85% rely mainly on groundwater (including purchased groundwater) and 15% on surface water, compared with 92% and 7.6% across Ohio. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Belmont Co. Sanitary District 3 Pws, draws primarily on groundwater.

What kinds of water systems operate in Belmont County?

Belmont County's active systems break down as 14 community systems (70%) and 6 transient non-community systems (30%). 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 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 (65%) and local government (35%).

Water systems in Belmont County

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Active public water systems in Belmont County, Ohio
#Water systemCountyPopulation servedTypeSource
1Belmont Co. Sanitary District 3 PwsBelmont26,822CommunityGroundwater
2Martins Ferry Public Water SystemBelmont6,980CommunityGroundwater
3BarnesvilleBelmont6,500CommunitySurface water
4St. Clairsville, City of PwsBelmont5,097CommunitySurface water
5Bellaire Public Water SystemBelmont4,278CommunitySurface water
6Shadyside Public Water SystemBelmont3,689CommunityGroundwater
7Bridgeport Public Water SystemBelmont2,830CommunityPurchased groundwater
8Powhatan Point Public Water SystemBelmont1,592CommunityGroundwater
9Bethesda Public Water SystemBelmont1,382CommunityPurchased groundwater
10Flushing Village PwsBelmont803CommunityPurchased groundwater
11York Township Water Authority PwsBelmont481CommunityPurchased groundwater
12Belmont Public Water SystemBelmont400CommunityGroundwater
13Holloway Public Water SystemBelmont360CommunityGroundwater
14Mwcd-Piedmont Marina and Campground PwsBelmont340Transient non-communityGroundwater
15Morristown Public Water SystemBelmont315CommunityPurchased groundwater
16Camp Presmont Inc..Belmont120Transient non-communityGroundwater
17202 Fuel Stop PwsBelmont30Transient non-communityGroundwater
18Jlk Carryout LLC PwsBelmont30Transient non-communityGroundwater
194-H Camp Piedmont Well 2 PwsBelmont25Transient non-communityGroundwater
204-H Camp Piedmont PwsBelmont25Transient non-communityGroundwater

Belmont County water systems: frequently asked questions

How many public water systems are in Belmont County, Ohio?

EPA's SDWIS records file 20 active public water systems under Belmont County, Ohio: 14 community systems (70%) and 6 transient non-community systems (30%).

Who supplies drinking water in Belmont County, OH?

The largest community water systems filed under Belmont County are Belmont Co. Sanitary District 3 Pws (26,822 people served), Martins Ferry Public Water System (6,980 people served) and Barnesville (6,500 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 Belmont County's drinking water come from groundwater or surface water?

Of the 20 active public water systems in Belmont County, 85% draw mainly on groundwater and 15% on surface water, counting purchased supplies. The largest system, Belmont Co. Sanitary District 3 Pws, uses groundwater.

Where can I find a water quality report for Belmont 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. 14 community systems are filed under Belmont 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 Belmont 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 Ohio 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 Belmont County, Ohio”, https://aquacensus.com/water-systems/ohio/belmont (data as of October 1, 2026).