Public water system · MI0001030
ActiveCadillac, City of
At a glance
City of Cadillac (PWSID MI0001030) is an active community water system in Wexford County, Michigan. It reports serving 10,355 people through 3,964 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in December 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
10,355
Service connections
3,964
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does City of Cadillac compare with other water systems in Wexford County?
By EPA's size categories, City of Cadillac is a large system (10,001 to 100,000 people). Wexford County has 109 active public water systems, and City of Cadillac is the largest of them by population served. Its population served is about 42 times the county average of 249 people per system, and accounts for 38% of the 27,169 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 Cadillac is about 54% 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. 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 Cadillac?
EPA lists City of Cadillac 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. 7 of the 109 active systems in Wexford County (6.4%) are also owned by a local government.
Does City of Cadillac have drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in December 2024. The violations listed here began between April 2010 and December 2024. By type: 3 monitoring and reporting, 1 reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 5 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 |
|---|---|---|---|---|
| 2024-12-11 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2010-06-01 | Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2010-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2010-06-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2010-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
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.
City of Cadillac: frequently asked questions
Who runs City of Cadillac?
City of Cadillac (PWSID MI0001030) 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 Cadillac serve?
City of Cadillac reports serving 10,355 people through 3,964 service connections in Wexford County, Michigan.
Where does City of Cadillac 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 Cadillac have any drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in December 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 City of Cadillac'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 5 violations for this system; 1 is health-based, and the most recent began in December 2024. 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 Cadillac's water quality report?
As a community water system, City of Cadillac 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 Wexford County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Mdot - Eckert Rest Area | Wexford | 1,300 | Transient non-community | Groundwater |
| Manton, City of | Wexford | 1,287 | Community | Groundwater |
| Mackinaw Trail Middle School | Wexford | 873 | Non-transient non-community | Groundwater |
| Haring Charter Township | Wexford | 839 | Community | Groundwater |
| Wexford Missaukee Career Tech Center | Wexford | 800 | Non-transient non-community | Groundwater |
| Buckley, Village of | Wexford | 529 | 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, “Cadillac, City of, PWSID MI0001030, Michigan”, https://aquacensus.com/water-systems/michigan/cadillac-city-of-mi0001030 (data as of October 1, 2026).