Public water system · MI0003280
ActiveHudson
At a glance
Hudson (PWSID MI0003280) is an active community water system in Lenawee County, Michigan. It reports serving 2,307 people through 960 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; 2 are health-based, and the most recent began in January 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,307
Service connections
960
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Hudson compare with other water systems in Lenawee County?
By EPA's size categories, Hudson is a small system (501 to 3,300 people). Lenawee County has 182 active public water systems. Its population served is about 5.3 times the county average of 437 people per system, and accounts for 2.9% of the 79,516 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 Hudson is about 66% 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. 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 Hudson?
EPA lists Hudson 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. 17 of the 182 active systems in Lenawee County (9.3%) are also owned by a local government.
Does Hudson have drinking water violations?
EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in January 2020. The violations listed here began between July 1994 and January 2020. By type: 3 monitoring and reporting and 2 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 |
|---|---|---|---|---|
| 2020-01-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2019-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2019-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2000-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1994-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | 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.
Hudson: frequently asked questions
Who runs Hudson?
Hudson (PWSID MI0003280) is a community water system owned by a local government. It is regulated by the MI state drinking water program.
How many people does Hudson serve?
Hudson reports serving 2,307 people through 960 service connections in Lenawee County, Michigan.
Where does Hudson 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 Hudson have any drinking water violations?
EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in January 2020. 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 Hudson'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; 2 are health-based, and the most recent began in January 2020. For current results, consult the system's annual water quality report, EPA ECHO, or the MI state drinking water program.
Where can I find Hudson's water quality report?
As a community water system, Hudson 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 Lenawee County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Adrian | Lenawee | 23,663 | Community | Surface water |
| Tecumseh | Lenawee | 8,521 | Community | Groundwater |
| The Groves of Michigan | Lenawee | 6,460 | Transient non-community | Groundwater |
| Madison Township | Lenawee | 3,480 | Community | Groundwater |
| Blissfield | Lenawee | 3,276 | Community | Surface water |
| Clinton | Lenawee | 2,336 | 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, “Hudson, PWSID MI0003280, Michigan”, https://aquacensus.com/water-systems/michigan/hudson-mi0003280 (data as of October 1, 2026).