Groundwater Rule (GWR) violations in Indiana
141 active public water systems in Indiana had a Groundwater Rule (GWR) violation in the past three years, 138 of them still unresolved. What Groundwater Rule (GWR) is and why it matters.
Health effects: Protects against enteric viruses, which can contaminate groundwater via cracked well casings, failing septic systems, or animal waste. Viruses persist longer in groundwater than in surface water. Hepatitis A and norovirus are the primary pathogens of concern.
Systems with a Groundwater Rule (GWR) violation
Unresolved first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Mitchell Water Department Mitchell · Lawrence County |
5,000 | 5 | 3 | |
|
Washington Township Water New Washington · Clark County |
4,315 | 4 | 1 | |
|
Rockville Light & Water Rockville · Parke County |
4,195 | 1 | 0 | |
|
Covington Water Department Covington · Fountain County |
2,645 | 1 | 1 | |
|
Knightstown Water Utility Knightstown · Henry County |
2,182 | 2 | 1 | |
|
Salamonie Reservoir-Lost Brdg W Rec Area Andrews · Huntington County |
2,000 | 2 | 1 | |
|
Battle Ground Water District Battle Ground · Tippecanoe County |
1,940 | 3 | 1 | |
|
New Prairie Schools LaPorte County |
1,800 | 2 | 1 | |
|
Arbys Restaurant & Convenient Store 6375 Lapaz · Marshall County |
1,667 | 2 | 2 | |
|
Southeast Fountain County School Corp. Veedersburg · Fountain County |
1,400 | 1 | 1 | |
|
Andrews Water Department Andrews · Huntington County |
1,149 | 7 | 2 | |
|
I.b. Campground Monticello · White County |
1,103 | 1 | 0 | |
|
St. Paul Municipal Water St. Paul · Decatur County |
1,096 | 8 | 3 | |
|
Patoka Water Company, Inc. Taswell · Crawford County |
1,038 | 4 | 3 | |
|
Lyford Water Works Rosedale · Parke County |
1,000 | 5 | 2 | |
|
Umh in Broadmore, LLC Aka Broadmore Esta Goshen · Elkhart County |
972 | 2 | 2 | |
|
Francesville Water Department Francesville · Pulaski County |
969 | 4 | 2 | |
|
Mjt Holdings LLC Fort Wayne · Allen County |
940 | 2 | 1 | |
|
Circle K Jonesville Road Columbus · Bartholomew County |
907 | 1 | 1 | |
|
Francisco Water Department Francisco · Gibson County |
900 | 1 | 1 | |
|
Van Bibber Lake Conservancy District Roachdale · Putnam County |
830 | 3 | 1 | |
|
Chapel Hill Christian Church Kokomo · Howard County |
695 | 1 | 1 | |
|
Tippecanoe Valley High School Kosciusko County |
611 | 4 | 1 | |
|
Heartland Christian Center Valparaiso · Porter County |
608 | 2 | 1 | |
|
St. Michaels Church Waterloo · DeKalb County |
601 | 2 | 1 | |
|
Bloomingdale Water Works Bloomingdale · Parke County |
562 | 4 | 4 | |
|
Sharpsville Water Utility Sharpsville · Tipton County |
553 | 8 | 2 | |
|
Meadow Springs Francesville · Pulaski County |
500 | 4 | 2 | |
|
Norwood Regional Water & Sewage Huntington · Huntington County |
486 | 6 | 3 | |
|
Bethel Church Cedar Lake Cedar Lake · Lake County |
473 | 1 | 1 | |
|
Universal Water Works Universal · Vermillion County |
473 | 5 | 5 | |
|
St. Joe Water Department St. Joe · DeKalb County |
460 | 4 | 0 | |
|
Springfield Elementary School Michigan City · LaPorte County |
445 | 2 | 1 | |
|
Westhaven MHP LLC Warsaw · Kosciusko County |
417 | 3 | 2 | |
|
All American Stores Laotto Laotto (la Otto) · DeKalb County |
404 | 1 | 0 | |
|
Wilfred Water Corporation Shelburn · Sullivan County |
400 | 3 | 0 | |
|
Royal Oaks Homeowners Assn., Inc. Monticello · White County |
390 | 3 | 1 | |
|
Glenwood Water Works Glenwood · Rush County |
313 | 2 | 1 | |
|
Prairie Creek Park Beach Area Muncie · Delaware County |
308 | 2 | 0 | |
|
Plaza 30 Wanatah · LaPorte County |
305 | 1 | 0 | |
|
Chet Waggoner Little League South Bend · St. Joseph County |
300 | 3 | 2 | |
|
Jimtown Baseball and Softball Complex Elkhart · Elkhart County |
300 | 3 | 2 | |
|
The Barn Lafayette · Tippecanoe County |
300 | 3 | 1 | |
|
Bom Petroleum, Inc. Middlebury · Elkhart County |
264 | 3 | 1 | |
|
All American Stores #4-Fort Wayne(dagco) Fort Wayne · Allen County |
262 | 1 | 1 | |
|
Grace Brethren Church Osceola · St. Joseph County |
254 | 1 | 1 | |
|
Ambia Water Department Ambia · Benton County |
250 | 2 | 1 | |
|
Cvs North Webster North Webster · Kosciusko County |
250 | 3 | 0 | |
|
Vineyard Church Syracuse · Kosciusko County |
226 | 2 | 1 | |
|
Elkhart Plastics, Inc. Middlebury · Elkhart County |
220 | 2 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved Groundwater Rule (GWR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Groundwater Rule (GWR) alone.
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.