Public water system · OH0100012
ActiveAdams County Regional Wd Pws
At a glance
Adams County Regional Wd Pws (PWSID OH0100012) is an active community water system in Adams County, Ohio. It reports serving 21,810 people through 7,311 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 5 violations for this system; none is health-based, and the most recent began in July 2018.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
21,810
Service connections
7,311
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Adams County Regional Wd Pws compare with other water systems in Adams County?
By EPA's size categories, Adams County Regional Wd Pws is a large system (10,001 to 100,000 people). Adams County has 6 active public water systems, and Adams County Regional Wd Pws is the largest of them by population served. Its population served is about 4.2 times the county average of 5,166 people per system, and accounts for 70% of the 30,997 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 Adams County Regional Wd Pws is about 3.3 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 Adams County Regional Wd Pws?
EPA lists Adams County Regional Wd 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 6 active systems in Adams County (100%) are also owned by a local government.
Does Adams County Regional Wd Pws have drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in July 2018. The violations listed here began between July 2002 and July 2018. By type: 3 monitoring and reporting, 1 monitoring and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (3 of them). EPA lists 5 as resolved. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2018-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2005-07-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2004-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2002-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
All 5 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.
Adams County Regional Wd Pws: frequently asked questions
Who runs Adams County Regional Wd Pws?
Adams County Regional Wd Pws (PWSID OH0100012) is a community water system owned by a local government. It is regulated by the OH state drinking water program.
How many people does Adams County Regional Wd Pws serve?
Adams County Regional Wd Pws reports serving 21,810 people through 7,311 service connections in Adams County, Ohio.
Where does Adams County Regional Wd 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 Adams County Regional Wd Pws have any drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in July 2018. 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 Adams County Regional Wd 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 5 violations for this system; none is health-based, and the most recent began in July 2018. For current results, consult the system's annual water quality report, EPA ECHO, or the OH state drinking water program.
Where can I find Adams County Regional Wd Pws' water quality report?
As a community water system, Adams County Regional Wd 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 Adams County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| West Union Public Water System | Adams | 3,170 | Community | Purchased groundwater |
| Manchester Village | Adams | 2,043 | Community | Groundwater |
| Peebles Public Water System | Adams | 1,978 | Community | Purchased groundwater |
| Winchester Public Water System | Adams | 1,052 | Community | Purchased groundwater |
| Seaman Village Pws | Adams | 944 | Community | Purchased 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, “Adams County Regional Wd Pws, PWSID OH0100012, Ohio”, https://aquacensus.com/water-systems/ohio/adams-county-regional-wd-pws-oh0100012 (data as of October 1, 2026).