Michigan
Lenawee County drinking water quality
197 active public water systems serve 82,557 people in Lenawee County. 105 are compliant, 92 had at least one EPA violation in the past three years, 2 are designated serious violators, and 0 carry a health flag.
Needs attention
Community water systems
28 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Adrian Adrian |
23,663 | 0 | 0 | |
|
Tecumseh Tecumseh |
8,521 | 0 | 0 | |
|
Madison Township Adrian |
3,480 | 1 | 0 | |
|
Blissfield Blissfield |
3,276 | 0 | 0 | |
|
Clinton Clinton |
2,336 | 2 | 0 | |
|
Hudson Hudson |
2,307 | 0 | 0 | |
|
Morenci Morenci |
2,220 | 0 | 0 | |
|
Deerfield Deerfield |
943 | 1 | 0 | |
|
Onsted Onsted |
907 | 5 | 3 | |
|
Fairfield Township Jasper |
717 | 1 | 0 | |
|
Britton Britton |
611 | 1 | 0 | |
|
Addison Addison |
605 | 4 | 1 | |
|
South Shore Water System Brooklyn |
488 | 3 | 0 | |
|
Lee Villa Mobile Home Park |
283 | 1 | 0 | |
|
Riga Township Riga |
266 | 1 | 0 | |
|
Lake Arrowhead Estates Adrian |
231 | 0 | 0 | |
|
Leffingwell Estates |
210 | 1 | 0 | |
|
Man Nor Farms Subdivision Adrian |
193 | 1 | 0 | |
|
Richlyn Manor Adrian |
192 | 0 | 0 | |
|
Waters Edge MH Community |
180 | 2 | 0 | |
|
Djw Properties MI LLC |
144 | 1 | 0 | |
|
Country Villa Estates |
125 | 1 | 0 | |
|
Brookdale Adrian Adrian |
115 | 0 | 0 | |
|
Bean Creek Resort |
112 | 2 | 0 | |
|
Clinton Estates |
68 | 1 | 0 | |
|
Park View Court |
63 | 0 | 0 | |
|
Sunset MHP |
53 | 0 | 0 | |
|
Round Lake Estates |
30 | 0 | 0 |
Non-community systems (169: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
Inactive systems (207, no longer operating or reporting)
Kept for the record and excluded from the county totals above. Browse inactive systems.
About this data
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Michigan records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.