Public water system · MI0005420
ActivePlymouth Township
At a glance
Plymouth Township (PWSID MI0005420) is an active community water system in Wayne County, Michigan. It reports serving 27,524 people through 9,398 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 2 violations for this system; none is health-based, and the most recent began in December 2014.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
27,524
Service connections
9,398
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Plymouth Township compare with other water systems in Wayne County?
By EPA's size categories, Plymouth Township is a large system (10,001 to 100,000 people). Wayne County has 55 active public water systems. Its population served is about 15% below the county average of 32,428 people per system, and accounts for 1.5% of the 1,783,512 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 Plymouth Township is about 4.1 times 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 Plymouth Township?
EPA lists Plymouth 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. 44 of the 55 active systems in Wayne County (80%) are also owned by a local government.
Does Plymouth Township have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in December 2014. The violations listed here began between December 2014 and December 2014. By type: 2 monitoring and reporting. The contaminants or rules involved are Total trihalomethanes (TTHM) and Haloacetic acids (HAA5). EPA lists 2 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 |
|---|---|---|---|---|
| 2014-12-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2014-12-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
All 2 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.
Plymouth Township: frequently asked questions
Who runs Plymouth Township?
Plymouth Township (PWSID MI0005420) is a community water system owned by a local government. It is regulated by the MI state drinking water program.
How many people does Plymouth Township serve?
Plymouth Township reports serving 27,524 people through 9,398 service connections in Wayne County, Michigan.
Where does Plymouth 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 Plymouth Township have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in December 2014. 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 Plymouth 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 2 violations for this system; none is health-based, and the most recent began in December 2014. For current results, consult the system's annual water quality report, EPA ECHO, or the MI state drinking water program.
Where can I find Plymouth Township's water quality report?
As a community water system, Plymouth 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 Wayne County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Detroit City of | Wayne | 633,218 | Community | Purchased surface water |
| Dearborn | Wayne | 109,976 | Community | Purchased surface water |
| Canton Township | Wayne | 99,627 | Community | Surface water |
| Livonia | Wayne | 96,942 | Community | Purchased surface water |
| Westland | Wayne | 85,420 | Community | Purchased surface water |
| Taylor | Wayne | 63,409 | 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, “Plymouth Township, PWSID MI0005420, Michigan”, https://aquacensus.com/water-systems/michigan/plymouth-township-mi0005420 (data as of October 1, 2026).