Public water system · OH7604512
ActiveAqua Ohio - Massillon Pws
At a glance
Aqua Ohio - Massillon Pws (PWSID OH7604512) is an active community water system in Stark County, Ohio. It reports serving 95,636 people through 38,527 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 3 violations for this system; none is health-based, and the most recent began in January 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
95,636
Service connections
38,527
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Aqua Ohio - Massillon Pws compare with other water systems in Stark County?
By EPA's size categories, Aqua Ohio - Massillon Pws is a large system (10,001 to 100,000 people). Stark County has 167 active public water systems, and Aqua Ohio - Massillon Pws is the 2nd-largest of them by population served. Its population served is about 52 times the county average of 1,856 people per system, and accounts for 31% of the 309,915 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 Aqua Ohio - Massillon Pws is about 14 times 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 Aqua Ohio - Massillon Pws?
EPA lists Aqua Ohio - Massillon Pws as privately owned. 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. 144 of the 167 active systems in Stark County (86%) are also privately owned.
Does Aqua Ohio - Massillon Pws have drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in January 2021. The violations listed here began between February 2020 and January 2021. By type: 2 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminants or rules involved are Haloacetic acids (HAA5), Total trihalomethanes (TTHM) and Consumer Confidence Rule. EPA lists 2 as resolved and 1 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 |
|---|---|---|---|---|
| 2021-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2020-02-06 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
All 3 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.
Aqua Ohio - Massillon Pws: frequently asked questions
Who runs Aqua Ohio - Massillon Pws?
Aqua Ohio - Massillon Pws (PWSID OH7604512) is a community water system privately owned. It is regulated by the OH state drinking water program.
How many people does Aqua Ohio - Massillon Pws serve?
Aqua Ohio - Massillon Pws reports serving 95,636 people through 38,527 service connections in Stark County, Ohio.
Where does Aqua Ohio - Massillon 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 Aqua Ohio - Massillon Pws have any drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in January 2021. 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 Aqua Ohio - Massillon 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. EPA's records list 3 violations for this system; none is health-based, and the most recent began in January 2021. For current results, consult the system's annual water quality report, EPA ECHO, or the OH state drinking water program.
Where can I find Aqua Ohio - Massillon Pws' water quality report?
As a community water system, Aqua Ohio - Massillon 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 Stark County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Canton Public Water System | Stark | 107,113 | Community | Groundwater |
| North Canton City Pws | Stark | 24,747 | Community | Groundwater |
| Alliance City Pws | Stark | 22,232 | Community | Surface water |
| Louisville City Pws | Stark | 9,186 | Community | Groundwater |
| Stark County Water District | Stark | 6,690 | Community | Purchased groundwater |
| Canal Fulton City Pws | Stark | 5,323 | Community | Groundwater |
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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, “Aqua Ohio - Massillon Pws, PWSID OH7604512, Ohio”, https://aquacensus.com/water-systems/ohio/aqua-ohio-massillon-pws-oh7604512 (data as of October 1, 2026).