Public water system · MI0006560
ActiveTecumseh
At a glance
Tecumseh (PWSID MI0006560) is an active community water system in Lenawee County, Michigan. It reports serving 8,521 people through 3,500 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
8,521
Service connections
3,500
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Tecumseh compare with other water systems in Lenawee County?
By EPA's size categories, Tecumseh is a medium system (3,301 to 10,000 people). Lenawee County has 182 active public water systems, and Tecumseh is the 2nd-largest of them by population served. Its population served is about 20 times the county average of 437 people per system, and accounts for 11% 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 Tecumseh is about 27% 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. 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 Tecumseh?
EPA lists Tecumseh 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 Tecumseh have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Tecumseh. For the latest compliance status, check EPA ECHO for current compliance history.
Tecumseh: frequently asked questions
Who runs Tecumseh?
Tecumseh (PWSID MI0006560) is a community water system owned by a local government. It is regulated by the MI state drinking water program.
How many people does Tecumseh serve?
Tecumseh reports serving 8,521 people through 3,500 service connections in Lenawee County, Michigan.
Where does Tecumseh 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 Tecumseh have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Tecumseh'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 Safe Drinking Water Act records list no violations for this system. For current results, consult the system's annual water quality report, EPA ECHO, or the MI state drinking water program.
Where can I find Tecumseh's water quality report?
As a community water system, Tecumseh 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 |
| 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 |
| Hudson | Lenawee | 2,307 | 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, “Tecumseh, PWSID MI0006560, Michigan”, https://aquacensus.com/water-systems/michigan/tecumseh-mi0006560 (data as of October 1, 2026).