Public water system · OH6500412
ActiveCircleville City Pws
At a glance
Circleville City Pws (PWSID OH6500412) is an active community water system in Pickaway County, Ohio. It reports serving 13,927 people through 5,292 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 11 violations for this system; 5 are health-based, and the most recent began in May 2015.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
13,927
Service connections
5,292
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Circleville City Pws compare with other water systems in Pickaway County?
By EPA's size categories, Circleville City Pws is a large system (10,001 to 100,000 people). Pickaway County has 32 active public water systems, and Circleville City Pws is the largest of them by population served. Its population served is about 10 times the county average of 1,383 people per system, and accounts for 31% of the 44,252 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 Circleville City Pws is about twice 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 Circleville City Pws?
EPA lists Circleville 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. 8 of the 32 active systems in Pickaway County (25%) are also owned by a local government.
Does Circleville City Pws have drinking water violations?
EPA's records list 11 violations for this system; 5 are health-based, and the most recent began in May 2015. The violations listed here began between December 1986 and May 2015. By type: 5 contaminant level above the legal limit, 5 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (6 of them). EPA lists 10 as resolved 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. 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 |
|---|---|---|---|---|
| 2015-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2015-04-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2013-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2013-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2012-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2012-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2009-12-31 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2001-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1999-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1992-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1986-12-31 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
All 11 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.
Circleville City Pws: frequently asked questions
Who runs Circleville City Pws?
Circleville City Pws (PWSID OH6500412) is a community water system owned by a local government. It is regulated by the OH state drinking water program.
How many people does Circleville City Pws serve?
Circleville City Pws reports serving 13,927 people through 5,292 service connections in Pickaway County, Ohio.
Where does Circleville City 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 Circleville City Pws have any drinking water violations?
EPA's records list 11 violations for this system; 5 are health-based, and the most recent began in May 2015. 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 Circleville 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. EPA's records list 11 violations for this system; 5 are health-based, and the most recent began in May 2015. For current results, consult the system's annual water quality report, EPA ECHO, or the OH state drinking water program.
Where can I find Circleville City Pws' water quality report?
As a community water system, Circleville 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 Pickaway County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Earnhart Hill Water District Pws | Pickaway | 10,057 | Community | Groundwater |
| Ashville Village Pws | Pickaway | 4,529 | Community | Groundwater |
| Commercial Point Village | Pickaway | 3,497 | Community | Groundwater |
| Odrc-Pickaway Correction Pws | Pickaway | 3,376 | Community | Groundwater |
| South Bloomfield Village Pws | Pickaway | 1,999 | Community | Groundwater |
| Williamsport Village Pws | Pickaway | 1,038 | 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, “Circleville City Pws, PWSID OH6500412, Ohio”, https://aquacensus.com/water-systems/ohio/circleville-city-pws-oh6500412 (data as of October 1, 2026).