Michigan
Keweenaw County drinking water quality
19 active public water systems serve 2,758 people in Keweenaw County. 12 are compliant, 7 had at least one EPA violation in the past three years, 0 are designated serious violators, and 0 carry a health flag.
Community water systems
5 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Eagle Harbor Township Eagle Harbor |
300 | 3 | 1 | |
|
Grant Township Copper Harbor Copper Harbor |
200 | 3 | 0 | |
|
Ahmeek Ahmeek |
148 | 0 | 0 | |
|
Houghton Township Eagle River |
138 | 0 | 0 | |
|
Sherman Township Gay |
40 | 4 | 1 |
Non-community systems (14: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Keweenaw Mountain Lodge |
485 | 2 | 0 | |
|
Isle Royale Rock Harbor |
335 | 0 | 0 | |
|
Dnr-Fort Wilkins State Park |
225 | 0 | 0 | |
|
Mt. Bohemia Ski Resort |
200 | 0 | 0 | |
|
Isle Royale Windigo |
115 | 0 | 0 | |
|
Sunset Bay Campground |
100 | 2 | 1 | |
|
Trails End Campground |
100 | 1 | 0 | |
|
Dockside Resort |
87 | 1 | 0 | |
|
Cliffview Bar & Roadhouse |
75 | 0 | 0 | |
|
Isle Royale Mott Island |
75 | 0 | 0 | |
|
Aqua Log Cabins Black Bear Inc. |
44 | 0 | 0 | |
|
Fresh Coast Cabins |
36 | 0 | 0 | |
|
Wilderness Resort LLC |
30 | 0 | 0 | |
|
Mdot Esrey Park Wayside, P138 |
25 | 0 | 0 |
Inactive systems (30, 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.