All water systems in Indiana
3,935 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Dubois Water Utilities Dubois · Dubois County |
9,078 | 0 | 0 | |
|
South Harrison Water Corporation Corydon · Harrison County |
9,057 | 0 | 0 | |
|
Southern Monroe Water Authority Bloomington · Monroe County |
8,877 | 0 | 0 | |
|
Morgan County Rural Water Company Martinsville · Morgan County |
8,800 | 1 | 0 | |
|
Hoosier Hills Regional Water District Milan · Ripley County |
8,660 | 2 | 0 | |
|
Indiana American Water Charlestown Charlestown · Clark County |
8,658 | 0 | 0 | |
|
Southwestern Bartholomew Water Corp. Columbus · Bartholomew County |
8,652 | 0 | 0 | |
|
Rural Membership Water Corp. of Clark CO Henryville · Clark County |
8,630 | 2 | 0 | |
|
East Washington Rural Water Salem · Washington County |
8,613 | 0 | 0 | |
|
Elwood Water & Sewage Elwood · Madison County |
8,586 | 0 | 0 | |
|
Jennings Water, Inc. North Vernon · Jennings County |
8,370 | 0 | 0 | |
|
Franklin County Water Association Brookville · Franklin County |
8,200 | 1 | 0 | |
|
Hill Water Corporation Mooresville · Morgan County |
8,200 | 1 | 0 | |
|
Salem Water Works Salem · Washington County |
8,200 | 5 | 0 | |
|
Cuii Twin Lakes Crown Point · Lake County |
8,000 | 1 | 0 | |
|
East Lawrence Water Authority Bedford · Lawrence County |
8,000 | 1 | 0 | |
|
Daviess County Rural Water Washington · Daviess County |
7,969 | 1 | 0 | |
|
Fortville Water Works Fortville · Hancock County |
7,638 | 0 | 0 | |
|
Ingalls Water Company Ingalls · Madison County |
7,600 | 1 | 0 | |
|
Linton Municipal Water Utility Linton · Greene County |
7,430 | 1 | 0 | |
|
University of Notre Dame Notre Dame · St. Joseph County |
7,400 | 1 | 0 | |
|
Scottsburg Water Department Scottsburg · Scott County |
7,369 | 1 | 0 | |
|
Batesville Water Utility Batesville · Ripley County |
7,323 | 0 | 0 | |
|
Marysville Otisco Nabb Water Corp. Marysville · Clark County |
6,813 | 0 | 0 | |
|
Nappanee Water Utility Nappanee · Elkhart County |
6,800 | 0 | 0 | |
|
Rushville City Utility Rushville · Rush County |
6,800 | 2 | 0 | |
|
Kent Water Company Madison · Jefferson County |
6,750 | 0 | 0 | |
|
Floyds Knobs Water Company, Inc. Floyds Knobs · Floyd County |
6,690 | 1 | 0 | |
|
Van Buren Water, Inc. Bloomington · Monroe County |
6,670 | 1 | 0 | |
|
Indiana American Water Sullivan Terre Haute · Sullivan County |
6,598 | 0 | 0 | |
|
Naval Weapons Station, Crane Crane · Martin County |
6,538 | 1 | 0 | |
|
Huntingburg Municipal Water Huntingburg · Dubois County |
6,526 | 1 | 0 | |
|
North Vernon Water Department North Vernon · Jennings County |
6,500 | 5 | 2 | |
|
Mount Vernon Water Works Mount Vernon · Posey County |
6,426 | 3 | 0 | |
|
Aurora Utilities Aurora · Dearborn County |
6,415 | 0 | 0 | |
|
South Lawrence Utilities Mitchell · Lawrence County |
6,395 | 1 | 0 | |
|
Seelyville Water Works Seelyville · Vigo County |
6,393 | 1 | 0 | |
|
Garrett Water Utility Garrett · DeKalb County |
6,390 | 1 | 0 | |
|
Rochester Water Department Rochester · Fulton County |
6,218 | 1 | 0 | |
|
Portland Municipal Water Plant Portland · Jay County |
6,209 | 0 | 0 | |
|
Rensselaer Water Department Rensselaer · Jasper County |
6,200 | 0 | 0 | |
|
Yorktown Water Department Yorktown · Delaware County |
6,200 | 2 | 0 | |
|
North Manchester Water Department North Manchester · Wabash County |
6,100 | 1 | 0 | |
|
Gas City Water Department Gas City · Grant County |
6,000 | 3 | 1 | |
|
Whiteland Water Works Whiteland · Johnson County |
5,955 | 1 | 0 | |
|
North Dearborn Water Authority West Harrison · Dearborn County |
5,775 | 0 | 0 | |
|
Pendleton Water Company Pendleton · Madison County |
5,758 | 0 | 0 | |
|
Corydon Water Works Corydon · Harrison County |
5,716 | 0 | 0 | |
|
Citizens Water Morgan Martinsville · Morgan County |
5,705 | 0 | 0 | |
|
Cicero Water Department Cicero · Hamilton County |
5,607 | 0 | 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 currently 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.