Public water system · MI0000245
ActiveAsh Township
At a glance
Ash Township (PWSID MI0000245) is an active community water system in Monroe County, Michigan. It reports serving 5,959 people through 2,450 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 3 violations for this system; none is health-based, and the most recent began in September 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
5,959
Service connections
2,450
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Ash Township compare with other water systems in Monroe County?
By EPA's size categories, Ash Township is a medium system (3,301 to 10,000 people). Monroe County has 83 active public water systems, and Ash Township is the 5th-largest of them by population served. Its population served is about 3.5 times the county average of 1,703 people per system, and accounts for 4.2% of the 141,308 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 Ash Township is about 11% 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 Ash Township?
EPA lists Ash Township 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 83 active systems in Monroe County (11%) are also owned by a local government.
Does Ash Township have drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in September 2022. The violations listed here began between July 2001 and September 2022. By type: 2 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminants or rules involved are Total trihalomethanes (TTHM), Haloacetic acids (HAA5) and Consumer Confidence Rule. 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 |
|---|---|---|---|---|
| 2022-09-11 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2022-09-11 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2001-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | 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.
Ash Township: frequently asked questions
Who runs Ash Township?
Ash Township (PWSID MI0000245) is a community water system owned by a local government. It is regulated by the MI state drinking water program.
How many people does Ash Township serve?
Ash Township reports serving 5,959 people through 2,450 service connections in Monroe County, Michigan.
Where does Ash Township 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 Ash Township have any drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in September 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 Ash Township'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; none is health-based, and the most recent began in September 2022. For current results, consult the system's annual water quality report, EPA ECHO, or the MI state drinking water program.
Where can I find Ash Township's water quality report?
As a community water system, Ash Township 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 Monroe County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Monroe | Monroe | 49,467 | Community | Surface water |
| Monroe South County | Monroe | 33,816 | Community | Purchased surface water |
| Frenchtown Township | Monroe | 21,609 | Community | Surface water |
| Berlin Township | Monroe | 9,900 | Community | Purchased surface water |
| Dundee | Monroe | 5,400 | Community | Purchased surface water |
| South Rockwood | Monroe | 1,587 | Community | Purchased 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, “Ash Township, PWSID MI0000245, Michigan”, https://aquacensus.com/water-systems/michigan/ash-township-mi0000245 (data as of October 1, 2026).