Public water system · MI2004237
ActiveSt. Joseph the Worker School
At a glance
St. Joseph the Worker School (PWSID MI2004237) is an active non-transient non-community water system in Isabella County, Michigan. It reports serving 135 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
135
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does St. Joseph the Worker School compare with other water systems in Isabella County?
By EPA's size categories, St. Joseph the Worker School is a very small system (500 people or fewer). Isabella County has 83 active public water systems. Its population served is well below the county average of 581 people per system, and accounts for 0.3% of the 48,199 people reported by systems filed under the county. Across Michigan, the 10,599 active systems average 847 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so St. Joseph the Worker School is well below that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Michigan has 1,402 active non-transient non-community water systems, 13% of the state's 10,599 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 10,214 Michigan systems (96%) list groundwater as their primary source.
Who owns and regulates St. Joseph the Worker School?
EPA lists St. Joseph the Worker School as privately owned. The MI state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 78 of the 83 active systems in Isabella County (94%) are also privately owned.
Does St. Joseph the Worker School have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 2023. The violations listed here began between January 1999 and October 2023. By type: 9 monitoring and reporting, 2 monitoring and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Arsenic (5 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2023-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2023-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2020-01-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2016-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2015-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2013-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2013-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2008-11-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2008-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2005-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1999-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Toxaphenecode 2020 | 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.
St. Joseph the Worker School: frequently asked questions
Who runs St. Joseph the Worker School?
St. Joseph the Worker School (PWSID MI2004237) is a non-transient non-community water system privately owned. It is regulated by the MI state drinking water program.
How many people does St. Joseph the Worker School serve?
St. Joseph the Worker School reports serving 135 people through 1 service connection in Isabella County, Michigan.
Where does St. Joseph the Worker School 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. Joseph the Worker School have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 2023. 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. Joseph the Worker School'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, one is health-based, and the most recent began in October 2023. For current results, consult EPA ECHO, or the MI state drinking water program.
Where can I find St. Joseph the Worker School's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. St. Joseph the Worker School is a non-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 Isabella County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Mount Pleasant | Isabella | 21,688 | Community | Surface water |
| Union Township | Isabella | 12,927 | Community | Groundwater |
| Shepherd, Village of | Isabella | 1,515 | Community | Groundwater |
| Weidman Ez Mart | Isabella | 800 | Transient non-community | Groundwater |
| Beal City Public Schools | Isabella | 785 | Non-transient non-community | Groundwater |
| Outdoor Adventures- Mt Pleasant | Isabella | 640 | 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, “St. Joseph the Worker School, PWSID MI2004237, Michigan”, https://aquacensus.com/water-systems/michigan/st-joseph-the-worker-school-mi2004237 (data as of October 1, 2026).