Public water system · OH1203312
ActiveNew Carlisle City Pws
At a glance
New Carlisle City Pws (PWSID OH1203312) is an active community water system in Clark County, Ohio. It reports serving 5,800 people through 2,283 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 December 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
5,800
Service connections
2,283
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does New Carlisle City Pws compare with other water systems in Clark County?
By EPA's size categories, New Carlisle City Pws is a medium system (3,301 to 10,000 people). Clark County has 78 active public water systems, and New Carlisle City Pws is the 2nd-largest of them by population served. Its population served is about 5.1 times the county average of 1,129 people per system, and accounts for 6.6% of the 88,085 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 New Carlisle City Pws is about 13% below 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 New Carlisle City Pws?
EPA lists New Carlisle 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. 11 of the 78 active systems in Clark County (14%) are also owned by a local government.
Does New Carlisle 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 December 2024. The violations listed here began between April 1994 and December 2024. By type: 4 monitoring and reporting, 4 required treatment not met, 2 public notice, recordkeeping or other and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Surface Water Treatment Rule (4 of them). EPA lists 9 as resolved, 1 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 |
|---|---|---|---|---|
| 2024-12-18 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2021-08-21 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2020-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2015-01-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2008-02-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1999-07-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 1999-06-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 1999-05-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 1999-02-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 1996-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
| 1994-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
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.
New Carlisle City Pws: frequently asked questions
Who runs New Carlisle City Pws?
New Carlisle City Pws (PWSID OH1203312) is a community water system owned by a local government. It is regulated by the OH state drinking water program.
How many people does New Carlisle City Pws serve?
New Carlisle City Pws reports serving 5,800 people through 2,283 service connections in Clark County, Ohio.
Where does New Carlisle 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 New Carlisle 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 December 2024. 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 New Carlisle 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 December 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the OH state drinking water program.
Where can I find New Carlisle City Pws' water quality report?
As a community water system, New Carlisle 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 Clark County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Springfield City Pws | Clark | 60,680 | Community | Groundwater |
| Enon Village Pws | Clark | 2,415 | Community | Groundwater |
| Tecumseh Schools Main Campus | Clark | 2,100 | Non-transient non-community | Groundwater |
| South Charleston Village Pws | Clark | 1,660 | Community | Groundwater |
| Youngs Jersey Dairy Pws | Clark | 1,340 | Non-transient non-community | Groundwater |
| Clark-Shawnee Local Pk-6 School Pws | Clark | 1,120 | 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, “New Carlisle City Pws, PWSID OH1203312, Ohio”, https://aquacensus.com/water-systems/ohio/new-carlisle-city-pws-oh1203312 (data as of October 1, 2026).