Indiana
Dearborn County drinking water quality
10 active public water systems serve 46,909 people in Dearborn County. 6 are compliant, 4 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
9 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Tri-Township Water Corporation Lawrenceburg |
10,435 | 0 | 0 | |
|
Aurora Utilities Aurora |
6,415 | 0 | 0 | |
|
North Dearborn Water Authority West Harrison |
5,775 | 0 | 0 | |
|
Valley Rural Utility Company Lawrenceburg |
5,529 | 1 | 0 | |
|
L-M-S Conservancy District Aurora |
5,375 | 1 | 0 | |
|
City of Greendale Utilities Lawrenceburg |
5,092 | 0 | 0 | |
|
Lawrenceburg Municipal Utilities Lawrenceburg |
5,000 | 1 | 0 | |
|
Dillsboro Water Works Dillsboro |
2,000 | 0 | 0 | |
|
Hogan Water Corporation Aurora |
1,238 | 2 | 0 |
Non-community systems (1: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Barber Road Cabins West Harrison |
50 | 0 | 0 |
Inactive systems (13, 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 Indiana 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.