Public water system · OH5043322
ActiveLake Milton - Berlin Koa South Well Pws
At a glance
Lake Milton - Berlin Koa South Well Pws (PWSID OH5043322) is an active transient non-community water system in Mahoning County, Ohio. It reports serving 130 people through 68 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in May 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
130
Service connections
68
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Lake Milton - Berlin Koa South Well Pws compare with other water systems in Mahoning County?
By EPA's size categories, Lake Milton - Berlin Koa South Well Pws is a very small system (500 people or fewer). Mahoning County has 65 active public water systems. Its population served is well below the county average of 2,583 people per system, and accounts for less than 0.1% 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 transient non-community water system reports serving 144 people, so Lake Milton - Berlin Koa South Well Pws is roughly in line with that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Ohio has 2,282 active transient non-community water systems, 59% 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 Lake Milton - Berlin Koa South Well Pws?
EPA lists Lake Milton - Berlin Koa South Well Pws as privately owned. 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. 58 of the 65 active systems in Mahoning County (89%) are also privately owned.
Does Lake Milton - Berlin Koa South Well Pws have drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in May 2025. The violations listed here began between July 1996 and May 2025. By type: 8 monitoring and reporting, 3 contaminant level above the legal limit and 1 reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (8 of them). EPA lists 11 as resolved and 1 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 |
|---|---|---|---|---|
| 2025-05-02 | ReportingReport Startup Procedures Cert Form (RTCR) · code 4C | Revised Total Coliform Rulecode 8000 | No | Unaddressed |
| 2005-10-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2002-07-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2002-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2002-07-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2001-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2001-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1998-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1997-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1997-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1996-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | 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.
Lake Milton - Berlin Koa South Well Pws: frequently asked questions
Who runs Lake Milton - Berlin Koa South Well Pws?
Lake Milton - Berlin Koa South Well Pws (PWSID OH5043322) is a transient non-community water system privately owned. It is regulated by the OH state drinking water program.
How many people does Lake Milton - Berlin Koa South Well Pws serve?
Lake Milton - Berlin Koa South Well Pws reports serving 130 people through 68 service connections in Mahoning County, Ohio.
Where does Lake Milton - Berlin Koa South Well 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 Lake Milton - Berlin Koa South Well Pws have any drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in May 2025. 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 Lake Milton - Berlin Koa South Well 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, 3 are health-based, and the most recent began in May 2025. For current results, consult EPA ECHO, or the OH state drinking water program.
Where can I find Lake Milton - Berlin Koa South Well Pws' water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Lake Milton - Berlin Koa South Well Pws is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Mahoning County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Youngstown City Pws | Mahoning | 130,530 | Community | Purchased surface water |
| Canfield City Pws | Mahoning | 7,706 | 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 |
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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, “Lake Milton - Berlin Koa South Well Pws, PWSID OH5043322, Ohio”, https://aquacensus.com/water-systems/ohio/lake-milton-berlin-koa-south-well-pws-oh5043322 (data as of October 1, 2026).