Public water system · MI2002776
ActiveCarsonville-Port Sanilac Schls
At a glance
Carsonville-Port Sanilac Schls (PWSID MI2002776) is an active non-transient non-community water system in Sanilac County, Michigan. It reports serving 360 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 5 violations for this system; none is health-based, and the most recent began in July 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
360
Service connections
2
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Carsonville-Port Sanilac Schls compare with other water systems in Sanilac County?
By EPA's size categories, Carsonville-Port Sanilac Schls is a very small system (500 people or fewer). Sanilac County has 74 active public water systems. Its population served is roughly in line with the county average of 337 people per system, and accounts for 1.4% of the 24,961 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 Carsonville-Port Sanilac Schls is about 16% 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 Carsonville-Port Sanilac Schls?
EPA lists Carsonville-Port Sanilac Schls 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. 60 of the 74 active systems in Sanilac County (81%) are also privately owned.
Does Carsonville-Port Sanilac Schls have drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in July 2022. The violations listed here began between January 1994 and July 2022. By type: 4 monitoring and reporting and 1 monitoring. The contaminant or rule involved most often is Total coliform bacteria (TCR) (3 of them). EPA lists 3 as resolved and 2 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. 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 |
|---|---|---|---|---|
| 2022-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 1999-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1996-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1995-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1994-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Archived |
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.
Carsonville-Port Sanilac Schls: frequently asked questions
Who runs Carsonville-Port Sanilac Schls?
Carsonville-Port Sanilac Schls (PWSID MI2002776) is a non-transient non-community water system privately owned. It is regulated by the MI state drinking water program.
How many people does Carsonville-Port Sanilac Schls serve?
Carsonville-Port Sanilac Schls reports serving 360 people through 2 service connections in Sanilac County, Michigan.
Where does Carsonville-Port Sanilac Schls 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 Carsonville-Port Sanilac Schls 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 2022. 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 Carsonville-Port Sanilac Schls' 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 2022. For current results, consult EPA ECHO, or the MI state drinking water program.
Where can I find Carsonville-Port Sanilac Schls' water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Carsonville-Port Sanilac Schls 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 Sanilac County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Worth Township | Sanilac | 3,854 | Community | Purchased surface water |
| Sandusky, City of | Sanilac | 2,679 | Community | Groundwater |
| Croswell, City of | Sanilac | 2,447 | Community | Groundwater |
| Marlette, City of | Sanilac | 1,875 | Community | Groundwater |
| Brown City | Sanilac | 1,316 | Community | Groundwater |
| Lexington, Village of | Sanilac | 1,025 | Community | Surface water |
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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, “Carsonville-Port Sanilac Schls, PWSID MI2002776, Michigan”, https://aquacensus.com/water-systems/michigan/carsonville-port-sanilac-schls-mi2002776 (data as of October 1, 2026).