All water systems in Indiana
3,935 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
East Monroe Water Corporation Bloomington · Monroe County |
3,648 | 1 | 0 | |
|
Indiana American Water Georgetown Georgetown · Floyd County |
3,605 | 0 | 0 | |
|
Knox County Water, Inc. Vincennes · Knox County |
3,525 | 0 | 0 | |
|
Union City Water Works Union City · Randolph County |
3,513 | 1 | 0 | |
|
Posey Township Water Corp. Hardinsburg · Washington County |
3,500 | 1 | 0 | |
|
East Fork Water Shoals · Martin County |
3,485 | 1 | 0 | |
|
Decatur Co. Water Corp. Greensburg · Decatur County |
3,440 | 0 | 0 | |
|
Cordry Sweetwater Conservancy District Nineveh · Brown County |
3,425 | 3 | 0 | |
|
Middlebury Water Department Middlebury · Elkhart County |
3,420 | 2 | 0 | |
|
Nashville Water Department Nashville · Brown County |
3,315 | 2 | 0 | |
|
Upland Water Department Upland · Grant County |
3,308 | 1 | 0 | |
|
St. Henry Water Corporation Ferdinand · Dubois County |
3,293 | 1 | 0 | |
|
Ossian Municipal Water Department Ossian · Wells County |
3,289 | 1 | 0 | |
|
Cataract Lake Water Corporation Poland · Owen County |
3,215 | 1 | 0 | |
|
Delphi Water Works Delphi · Carroll County |
3,200 | 0 | 0 | |
|
Springs Valley Regional Water District West Baden Springs (corporate · Orange County |
3,188 | 1 | 1 | |
|
New Castle Correctional Facility New Castle · Henry County |
3,160 | 2 | 0 | |
|
Attica Water Utility Attica · Fountain County |
3,147 | 1 | 0 | |
|
Tri-County Conservancy District Morgan County |
3,078 | 1 | 0 | |
|
Turkey Run State Park Marshall · Parke County |
3,010 | 0 | 0 | |
|
Western School Corporation Russiaville · Howard County |
3,010 | 3 | 0 | |
|
Jennings Northwest Regional Utility North Vernon · Jennings County |
2,955 | 1 | 0 | |
|
Oakland City Water Department Oakland City · Gibson County |
2,938 | 2 | 0 | |
|
Ferdinand Water Department Ferdinand · Dubois County |
2,918 | 2 | 0 | |
|
Westville Correctional Facility Westville · LaPorte County |
2,850 | 0 | 0 | |
|
Brown County State Park Nashville · Brown County |
2,836 | 2 | 0 | |
|
And-Tro Water Authority District 1 Tell City · Perry County |
2,833 | 0 | 0 | |
|
Syracuse Water Company Syracuse · Kosciusko County |
2,810 | 0 | 0 | |
|
Brookville Water Works Brookville · Franklin County |
2,800 | 2 | 0 | |
|
Chesterfield Water Department Chesterfield · Madison County |
2,800 | 0 | 0 | |
|
Loogootee Water Works Loogootee · Martin County |
2,800 | 2 | 0 | |
|
Reelsville Water Company Reelsville · Putnam County |
2,800 | 1 | 0 | |
|
Sullivan-Vigo Rural Water Corp. Vigo County |
2,765 | 1 | 0 | |
|
Fairmount Water Works Fairmount · Grant County |
2,756 | 1 | 0 | |
|
Avilla Water Department Avilla · Noble County |
2,700 | 1 | 0 | |
|
Butler Water Department Butler · DeKalb County |
2,700 | 3 | 0 | |
|
Crawford County Water Company, Inc. Leavenworth · Crawford County |
2,678 | 0 | 0 | |
|
Hamilton Water Department Hamilton · Steuben County |
2,675 | 1 | 0 | |
|
Finch Newton Water, Inc. Grandview (grand View) · Spencer County |
2,672 | 3 | 1 | |
|
Covington Water Department Covington · Fountain County |
2,645 | 1 | 1 | |
|
Lagrange Department of Water Works Lagrange · LaGrange County |
2,625 | 6 | 0 | |
|
Hanover Water Department Hanover · Jefferson County |
2,597 | 2 | 0 | |
|
Nappanee Missionary Church Nappanee · Elkhart County |
2,545 | 2 | 0 | |
|
Centerville Water Works Centerville · Wayne County |
2,533 | 2 | 0 | |
|
Rockport Water Rockport · Spencer County |
2,520 | 2 | 0 | |
|
Putnamville Correctional Facility Greencastle · Putnam County |
2,505 | 2 | 0 | |
|
Greentown Municipal Water Greentown · Howard County |
2,500 | 0 | 0 | |
|
Indiana Beach, Inc. Monticello · White County |
2,500 | 0 | 0 | |
|
Peru Utilities/grissom Peru · Miami County |
2,500 | 0 | 0 | |
|
Shelburn Water Utilities Shelburn · Sullivan County |
2,500 | 1 | 0 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules still in violation at EPA's latest data refresh.
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.