All water systems in Indiana
3,935 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Griffith Water Department Griffith · Lake County |
16,893 | 2 | 0 | |
|
Lebanon Utilities Lebanon · Boone County |
16,840 | 1 | 0 | |
|
Dyer Water Department Dyer · Lake County |
16,800 | 0 | 0 | |
|
Ramsey Water Company, Inc. Ramsey · Harrison County |
16,475 | 1 | 0 | |
|
Frankfort Water Works Frankfort · Clinton County |
16,422 | 1 | 0 | |
|
Indiana American Water Crawfordsville Crawfordsville · Montgomery County |
15,930 | 0 | 0 | |
|
Watson Rural Water Company Jeffersonville · Clark County |
15,750 | 0 | 0 | |
|
New Haven Water Department New Haven · Allen County |
15,700 | 3 | 0 | |
|
Citizens Water Whitestown Zionsville · Boone County |
15,695 | 1 | 0 | |
|
Sellersburg Water Department Jeffersonville · Clark County |
15,655 | 1 | 0 | |
|
Brown County Water Utility Brown County |
15,368 | 1 | 0 | |
|
Madison Water Department Madison · Jefferson County |
15,323 | 3 | 0 | |
|
Martinsville Water Utility Martinsville · Morgan County |
15,000 | 1 | 0 | |
|
Ellettsville Water Works Ellettsville · Monroe County |
14,500 | 1 | 0 | |
|
Huntertown Water Works Huntertown · Allen County |
14,058 | 1 | 0 | |
|
Bedford City Utilities Bedford · Lawrence County |
14,000 | 1 | 0 | |
|
Indiana American Water Warsaw Warsaw · Kosciusko County |
13,835 | 0 | 0 | |
|
Washington Water Works Washington · Daviess County |
13,690 | 2 | 0 | |
|
Jackson County Water Utility Brownstown · Jackson County |
13,667 | 1 | 0 | |
|
Eastern Bartholomew Water Taylorsville · Bartholomew County |
13,547 | 2 | 0 | |
|
Patoka Lake Regional Water Dubois · Dubois County |
13,503 | 1 | 0 | |
|
Connersville Utilities Connersville · Fayette County |
13,282 | 0 | 0 | |
|
German Township Water District Inc. Evansville · Vanderburgh County |
12,890 | 1 | 0 | |
|
Auburn Water Department Auburn · DeKalb County |
12,800 | 0 | 0 | |
|
Greencastle Department of Water Greencastle · Putnam County |
12,699 | 1 | 0 | |
|
Greensburg Municipal Water Works Greensburg · Decatur County |
12,650 | 1 | 0 | |
|
Indiana American Water Wabash Wabash · Wabash County |
12,140 | 0 | 0 | |
|
Brazil City Water Works Brazil · Clay County |
12,000 | 1 | 0 | |
|
Patriot Water Department Patriot · Switzerland County |
11,937 | 1 | 0 | |
|
Indiana American Water Lowell Lowell · Lake County |
11,908 | 0 | 0 | |
|
North Lawrence Water Authority Bedford · Lawrence County |
11,625 | 1 | 0 | |
|
Peru Water Department Peru · Miami County |
11,417 | 1 | 1 | |
|
Borden Tri-County Region Borden · Clark County |
11,000 | 1 | 0 | |
|
Princeton Water Department Princeton · Gibson County |
10,875 | 4 | 1 | |
|
Speedway Water Works Speedway · Marion County |
10,578 | 4 | 0 | |
|
Charlestown/river Ridge Charlestown · Clark County |
10,500 | 0 | 0 | |
|
Danville Water Works Danville · Hendricks County |
10,500 | 1 | 0 | |
|
Edwardsville Water Corporation Georgetown · Floyd County |
10,442 | 1 | 0 | |
|
Tri-Township Water Corporation Lawrenceburg · Dearborn County |
10,435 | 0 | 0 | |
|
Kendallville Water Department Kendallville · Noble County |
10,300 | 1 | 0 | |
|
Bluffton Utilities Water Dept Bluffton · Wells County |
10,298 | 0 | 0 | |
|
City of Boonville Boonville · Warrick County |
10,260 | 0 | 0 | |
|
Plymouth Water Department Plymouth · Marshall County |
10,241 | 1 | 0 | |
|
Indiana American Water Mooresville Mooresville · Morgan County |
10,083 | 0 | 0 | |
|
Pike-Gibson Water, Inc. Oakland City Junction · Pike County |
10,000 | 2 | 0 | |
|
Bbp Water Company Spencer · Owen County |
9,903 | 1 | 0 | |
|
Decatur Water Department Decatur · Adams County |
9,900 | 0 | 0 | |
|
Columbia City Water Department Columbia City · Whitley County |
9,892 | 1 | 0 | |
|
Angola Water Department Angola · Steuben County |
9,340 | 1 | 0 | |
|
Tell City Water Department Tell City · Perry County |
9,315 | 2 | 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.