Public water system · OH5000503
ActiveCanfield City Pws
At a glance
Canfield City Pws (PWSID OH5000503) is an active community water system in Mahoning County, Ohio. It reports serving 7,706 people through 3,410 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
7,706
Service connections
3,410
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Canfield City Pws compare with other water systems in Mahoning County?
By EPA's size categories, Canfield City Pws is a medium system (3,301 to 10,000 people). Mahoning County has 65 active public water systems, and Canfield City Pws is the 2nd-largest of them by population served. Its population served is about 198% above the county average of 2,583 people per system, and accounts for 4.6% of the 167,876 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 Canfield City Pws is about 15% above 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 191 Ohio systems (5%) list purchased surface water as their primary source.
Who owns and regulates Canfield City Pws?
EPA lists Canfield City 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. 6 of the 65 active systems in Mahoning County (9.2%) are also owned by a local government.
Does Canfield City Pws have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2021. The violations listed here began between September 1991 and October 2021. By type: 6 public notice, recordkeeping or other and 6 monitoring and reporting. The contaminant or rule involved most often is Consumer Confidence Rule (6 of them). EPA lists 8 as resolved, 3 as unaddressed and 1 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2021-10-26 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2021-01-04 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2020-01-21 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2018-11-08 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2015-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2012-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2012-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2012-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2010-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2003-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1995-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1991-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
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.
Canfield City Pws: frequently asked questions
Who runs Canfield City Pws?
Canfield City Pws (PWSID OH5000503) is a community water system owned by a local government. It is regulated by the OH state drinking water program.
How many people does Canfield City Pws serve?
Canfield City Pws reports serving 7,706 people through 3,410 service connections in Mahoning County, Ohio.
Where does Canfield City Pws get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Canfield City Pws have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 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 Canfield City 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, none is health-based, and the most recent began in October 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 Canfield City Pws' water quality report?
As a community water system, Canfield City 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 Mahoning County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Youngstown City Pws | Mahoning | 130,530 | Community | Purchased surface water |
| Hollywood Gaming @ Mvrc | Mahoning | 7,625 | Non-transient non-community | Groundwater |
| Sebring Village Pws | Mahoning | 6,058 | Community | Surface water |
| Jackson/Milton Metro Water District Pws | Mahoning | 3,728 | Community | Purchased surface water |
| Greenford Christian Life Center (C, D,E) | Mahoning | 1,623 | Transient non-community | Groundwater |
| South Range Local Schools K-12 Pws | Mahoning | 1,524 | Non-transient non-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, “Canfield City Pws, PWSID OH5000503, Ohio”, https://aquacensus.com/water-systems/ohio/canfield-city-pws-oh5000503 (data as of October 1, 2026).