Public water system · OH7101212
ActiveChillicothe Correctional Institution
At a glance
Chillicothe Correctional Institution (PWSID OH7101212) is an active community water system in Ross County, Ohio. It reports serving 9,000 people through 130 service connections. Its primary water source is groundwater, and EPA lists it as owned by a state government. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
9,000
Service connections
130
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Chillicothe Correctional Institution compare with other water systems in Ross County?
By EPA's size categories, Chillicothe Correctional Institution is a medium system (3,301 to 10,000 people). Ross County has 8 active public water systems, and Chillicothe Correctional Institution is the 3rd-largest of them by population served. Its population served is roughly in line with the county average of 8,703 people per system, and accounts for 13% of the 69,627 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 Chillicothe Correctional Institution is about 34% 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. 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 Chillicothe Correctional Institution?
EPA lists Chillicothe Correctional Institution as owned by a state 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. 1 of the 8 active systems in Ross County (13%) are also owned by a state government.
Does Chillicothe Correctional Institution have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in January 2026. The violations listed here began between June 2001 and January 2026. By type: 6 public notice, recordkeeping or other, 2 reporting, 2 monitoring and reporting, 1 required treatment not met and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Consumer Confidence Rule (6 of them). EPA lists 8 as resolved and 4 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 |
|---|---|---|---|---|
| 2026-01-08 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2025-07-02 | ReportingNotification, Known or Potential LSL · code 4H | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Resolved |
| 2024-08-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2022-08-19 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2019-12-30 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2019-01-23 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2004-12-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2003-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2001-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | 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 |
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.
Chillicothe Correctional Institution: frequently asked questions
Who runs Chillicothe Correctional Institution?
Chillicothe Correctional Institution (PWSID OH7101212) is a community water system owned by a state government. It is regulated by the OH state drinking water program.
How many people does Chillicothe Correctional Institution serve?
Chillicothe Correctional Institution reports serving 9,000 people through 130 service connections in Ross County, Ohio.
Where does Chillicothe Correctional Institution 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 Chillicothe Correctional Institution 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 January 2026. 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 Chillicothe Correctional Institution's 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 January 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the OH state drinking water program.
Where can I find Chillicothe Correctional Institution's water quality report?
As a community water system, Chillicothe Correctional Institution 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 Ross County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Ross County Water Co Inc. | Ross | 35,345 | Community | Groundwater |
| Chillicothe City Pws | Ross | 21,725 | Community | Groundwater |
| Frankfort Village Pws | Ross | 1,100 | Community | Groundwater |
| Kingston Village Pws | Ross | 1,032 | Community | Purchased groundwater |
| Bainbridge Village Pws | Ross | 900 | Community | Groundwater |
| Clarksburg Village Pws | Ross | 500 | 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, “Chillicothe Correctional Institution, PWSID OH7101212, Ohio”, https://aquacensus.com/water-systems/ohio/chillicothe-correctional-institution-oh7101212 (data as of October 1, 2026).