Public water system · OH0600612
ActiveSt Marys City
At a glance
St Marys City (PWSID OH0600612) is an active community water system in Auglaize County, Ohio. It reports serving 9,356 people through 4,096 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; 1 is health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
9,356
Service connections
4,096
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does St Marys City compare with other water systems in Auglaize County?
By EPA's size categories, St Marys City is a medium system (3,301 to 10,000 people). Auglaize County has 29 active public water systems, and St Marys City is the 2nd-largest of them by population served. Its population served is about 8 times the county average of 1,171 people per system, and accounts for 28% of the 33,947 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 St Marys City is about 40% 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 St Marys City?
EPA lists St Marys City 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 29 active systems in Auglaize County (28%) are also owned by a local government.
Does St Marys City have drinking water violations?
EPA's records list 4 violations for this system; 1 is health-based, and the most recent began in October 2024. The violations listed here began between January 2019 and October 2024. By type: 2 public notice, recordkeeping or other, 1 required treatment not met and 1 reporting. The contaminant or rule involved most often is Lead and Copper Rule Revisions (2 of them). EPA lists 2 as resolved and 2 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 |
|---|---|---|---|---|
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Resolved |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2024-02-02 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2019-01-15 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
All 4 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.
St Marys City: frequently asked questions
Who runs St Marys City?
St Marys City (PWSID OH0600612) is a community water system owned by a local government. It is regulated by the OH state drinking water program.
How many people does St Marys City serve?
St Marys City reports serving 9,356 people through 4,096 service connections in Auglaize County, Ohio.
Where does St Marys City 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 St Marys City have any drinking water violations?
EPA's records list 4 violations for this system; 1 is health-based, and the most recent began in October 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 St Marys City'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. EPA's records list 4 violations for this system; 1 is health-based, and the most recent began in October 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 St Marys City's water quality report?
As a community water system, St Marys City 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 Auglaize County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Wapakoneta City Pws | Auglaize | 11,000 | Community | Groundwater |
| New Bremen Village | Auglaize | 3,034 | Community | Groundwater |
| Minster Village | Auglaize | 3,025 | Community | Groundwater |
| Cridersville Village Pws | Auglaize | 2,410 | Community | Groundwater |
| Odot Rest Area 7-26/7-25 Pws | Auglaize | 1,333 | Transient non-community | Groundwater |
| New Knoxville Village | Auglaize | 946 | 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, “St Marys City, PWSID OH0600612, Ohio”, https://aquacensus.com/water-systems/ohio/st-marys-city-oh0600612 (data as of October 1, 2026).