Public water system · MI0000280
ActiveAu Gres, City of
At a glance
City of Au Gres (PWSID MI0000280) is an active community water system in Arenac County, Michigan. It reports serving 945 people through 781 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list one violation for this system; it is health-based, and the most recent began in May 1994.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
945
Service connections
781
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does City of Au Gres compare with other water systems in Arenac County?
By EPA's size categories, City of Au Gres is a small system (501 to 3,300 people). Arenac County has 65 active public water systems, and City of Au Gres is the 4th-largest of them by population served. Its population served is about 198% above the county average of 317 people per system, and accounts for 4.6% of the 20,612 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 Au Gres is well 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 262 Michigan systems (2.5%) list purchased surface water as their primary source.
Who owns and regulates City of Au Gres?
EPA lists City of Au Gres 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. 9 of the 65 active systems in Arenac County (14%) are also owned by a local government.
Does City of Au Gres have drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in May 1994. By type: 1 required treatment not met. The contaminant or rule involved is Surface Water Treatment Rule. EPA lists 1 as archived. 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 |
|---|---|---|---|---|
| 1994-05-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Archived |
The one violation in EPA's records.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 Au Gres: frequently asked questions
Who runs City of Au Gres?
City of Au Gres (PWSID MI0000280) 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 Au Gres serve?
City of Au Gres reports serving 945 people through 781 service connections in Arenac County, Michigan.
Where does City of Au Gres get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does City of Au Gres have any drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in May 1994. 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 Au Gres' 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 one violation for this system; it is health-based, and the most recent began in May 1994. 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 Au Gres' water quality report?
As a community water system, City of Au Gres 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 Arenac County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Sims-Whitney Utilities Auth. | Arenac | 5,815 | Community | Purchased surface water |
| Standish, City of | Arenac | 1,509 | Community | Purchased surface water |
| Mdot - Alger Rest Area, R625 | Arenac | 1,000 | Transient non-community | Groundwater |
| Standish-Sterling Central Elem | Arenac | 800 | Non-transient non-community | Groundwater |
| Whites Canoe Livery Well | Arenac | 660 | Transient non-community | Groundwater |
| Whites Canoe Livery | Arenac | 660 | 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, “Au Gres, City of, PWSID MI0000280, Michigan”, https://aquacensus.com/water-systems/michigan/au-gres-city-of-mi0000280 (data as of October 1, 2026).