Public water system · MI0000635
ActiveBerlin Township
At a glance
Berlin Township (PWSID MI0000635) is an active community water system in Monroe County, Michigan. It reports serving 9,900 people through 3,300 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 July 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
9,900
Service connections
3,300
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Berlin Township compare with other water systems in Monroe County?
By EPA's size categories, Berlin Township is a medium system (3,301 to 10,000 people). Monroe County has 83 active public water systems, and Berlin Township is the 4th-largest of them by population served. Its population served is about 5.8 times the county average of 1,703 people per system, and accounts for 7% 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 Berlin Township is about 48% 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. 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 Berlin Township?
EPA lists Berlin 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 Berlin Township have drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in July 2022. The violations listed here began between September 2021 and July 2022. By type: 2 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminants or rules involved are Consumer Confidence Rule, Total trihalomethanes (TTHM) and Haloacetic acids (HAA5). 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 |
|---|---|---|---|---|
| 2022-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2021-09-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2021-09-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | 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.
Berlin Township: frequently asked questions
Who runs Berlin Township?
Berlin Township (PWSID MI0000635) is a community water system owned by a local government. It is regulated by the MI state drinking water program.
How many people does Berlin Township serve?
Berlin Township reports serving 9,900 people through 3,300 service connections in Monroe County, Michigan.
Where does Berlin 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 Berlin 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 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 Berlin 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 July 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 Berlin Township's water quality report?
As a community water system, Berlin 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 |
| Ash Township | Monroe | 5,959 | 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, “Berlin Township, PWSID MI0000635, Michigan”, https://aquacensus.com/water-systems/michigan/berlin-township-mi0000635 (data as of October 1, 2026).