Public water system · MI0006780
ActiveVassar, City of
At a glance
City of Vassar (PWSID MI0006780) is an active community water system in Tuscola County, Michigan. It reports serving 2,697 people through 1,032 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 3 violations for this system; 2 are health-based, and the most recent began in July 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,697
Service connections
1,032
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does City of Vassar compare with other water systems in Tuscola County?
By EPA's size categories, City of Vassar is a small system (501 to 3,300 people). Tuscola County has 91 active public water systems, and City of Vassar is the 2nd-largest of them by population served. Its population served is about 9.2 times the county average of 293 people per system, and accounts for 10% of the 26,657 people reported by systems filed under the county. Across Michigan, the 10,599 active systems average 847 people each. Nationally, the average active community water system reports serving 6,703 people, so City of Vassar is about 60% 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. Michigan has 1,332 active 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 City of Vassar?
EPA lists City of Vassar as owned by a local government. 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. 11 of the 91 active systems in Tuscola County (12%) are also owned by a local government.
Does City of Vassar have drinking water violations?
EPA's records list 3 violations for this system; 2 are health-based, and the most recent began in July 2023. The violations listed here began between June 2001 and July 2023. By type: 2 contaminant level above the legal limit and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 3 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 |
|---|---|---|---|---|
| 2023-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2001-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2001-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 3 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.
City of Vassar: frequently asked questions
Who runs City of Vassar?
City of Vassar (PWSID MI0006780) is a community water system owned by a local government. It is regulated by the MI state drinking water program.
How many people does City of Vassar serve?
City of Vassar reports serving 2,697 people through 1,032 service connections in Tuscola County, Michigan.
Where does City of Vassar 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 City of Vassar have any drinking water violations?
EPA's records list 3 violations for this system; 2 are health-based, and the most recent began in July 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 City of Vassar'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 3 violations for this system; 2 are health-based, and the most recent began in July 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the MI state drinking water program.
Where can I find City of Vassar's water quality report?
As a community water system, City of Vassar 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 Tuscola County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Caro, City of | Tuscola | 5,029 | Community | Groundwater |
| Cass City, Village of | Tuscola | 2,428 | Community | Groundwater |
| G.C. Express | Tuscola | 1,400 | Transient non-community | Groundwater |
| Millington, Village of | Tuscola | 1,072 | Community | Groundwater |
| Mayville, Village of | Tuscola | 950 | Community | Groundwater |
| Ber Wa Ga Na Campground | Tuscola | 736 | 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, “Vassar, City of, PWSID MI0006780, Michigan”, https://aquacensus.com/water-systems/michigan/vassar-city-of-mi0006780 (data as of October 1, 2026).