Public water system · OH4101712
ActiveMount Pleasant Pws
At a glance
Mount Pleasant Pws (PWSID OH4101712) is an active community water system in Jefferson County, Ohio. It reports serving 450 people through 260 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in August 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
450
Service connections
260
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Mount Pleasant Pws compare with other water systems in Jefferson County?
By EPA's size categories, Mount Pleasant Pws is a very small system (500 people or fewer). Jefferson County has 33 active public water systems. Its population served is well below the county average of 1,758 people per system, and accounts for 0.8% of the 58,009 people reported by systems filed under the county. Across Ohio, the 3,854 active systems average 2,767 people each. Nationally, the average active community water system reports serving 6,703 people, so Mount Pleasant Pws is well below that figure.
What does “community water system” mean?
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. Ohio has 1,028 active community water systems, 27% of the state's 3,854 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 3,446 Ohio systems (89%) list groundwater as their primary source.
Who owns and regulates Mount Pleasant Pws?
EPA lists Mount Pleasant Pws as owned by a local government. The OH state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 16 of the 33 active systems in Jefferson County (48%) are also owned by a local government.
Does Mount Pleasant Pws have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in August 2022. The violations listed here began between September 2010 and August 2022. By type: 5 public notice, recordkeeping or other, 5 monitoring and reporting and 2 required treatment not met. The contaminant or rule involved most often is Consumer Confidence Rule (5 of them). EPA lists 9 as resolved and 3 as unaddressed. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2022-08-25 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2021-12-15 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2021-01-07 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2020-08-10 | Required treatment not metPublic Education · code 65 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 2020-07-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2020-06-01 | Monitoring and reportingInitial, Follow-up, or Routine Source Water M/R · code 56 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2020-06-01 | Required treatment not metOCCT/SOWT Study/Recommendation · code 57 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 2018-11-29 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2012-08-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2011-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2011-06-01 | Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2010-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Mount Pleasant Pws: frequently asked questions
Who runs Mount Pleasant Pws?
Mount Pleasant Pws (PWSID OH4101712) is a community water system owned by a local government. It is regulated by the OH state drinking water program.
How many people does Mount Pleasant Pws serve?
Mount Pleasant Pws reports serving 450 people through 260 service connections in Jefferson County, Ohio.
Where does Mount Pleasant Pws get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Mount Pleasant Pws have any drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in August 2022. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Mount Pleasant Pws' water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in August 2022. For current results, consult the system's annual water quality report, EPA ECHO, or the OH state drinking water program.
Where can I find Mount Pleasant Pws' water quality report?
As a community water system, Mount Pleasant Pws must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Jefferson County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Steubenville, City of | Jefferson | 17,000 | Community | Surface water |
| Jefferson Co W and S District - M | Jefferson | 13,983 | Community | Purchased surface water |
| Toronto Pws | Jefferson | 5,676 | Community | Surface water |
| Wintersville Village Pws | Jefferson | 3,924 | Community | Purchased surface water |
| Mingo Junction Pws | Jefferson | 3,350 | Community | Groundwater |
| Jefferson Co W and S District- A | Jefferson | 2,635 | Community | Purchased groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Mount Pleasant Pws, PWSID OH4101712, Ohio”, https://aquacensus.com/water-systems/ohio/mount-pleasant-pws-oh4101712 (data as of October 1, 2026).