Indiana Drinking Water Violations

3,801Water Systems
53,278Total Violations
4,594Health-Based

Indiana has 3,801 active public water systems regulated under the EPA's Safe Drinking Water Act. Across these systems, there have been 4,594 health-based violations out of 53,278 total violations recorded. Currently, 112 water systems have unresolved health-based violations.

The most frequently cited health-based contaminants in Indiana are Unknown, Unknown, and Unknown. Health-based violations mean a water system exceeded an EPA maximum contaminant level (MCL) or failed required treatment standards.

Browse the counties below to find specific water systems, or search by address or ZIP code to find your water provider.

Counties

CountyWater SystemsTotal ViolationsHealth-Based
Kosciusko County 290 4,739 350
Lagrange County 188 1,878 250
St. Joseph County 220 2,275 240
Elkhart County 275 3,567 195
White County 72 1,804 194
Steuben County 131 1,038 186
Lake County 103 2,491 148
Laporte County 119 1,929 142
Scott County 2 218 138
Decatur County 17 610 124
Washington County 7 207 122
Parke County 29 779 107
Jennings County 10 375 97
Marshall County 84 1,346 96
Tippecanoe County 87 1,082 95
Fountain County 17 249 84
Hamilton County 65 951 75
Monroe County 11 156 74
Lawrence County 6 168 65
Wabash County 47 635 63
Warren County 20 328 63
Rush County 26 311 63
Noble County 95 904 62
Montgomery County 49 754 60
Porter County 79 1,268 59
Vigo County 28 720 57
Miami County 61 1,183 56
Marion County 55 1,117 54
Starke County 43 724 54
Dekalb County 46 291 51
Delaware County 63 923 49
Adams County 73 800 47
Allen County 87 716 45
Cass County 42 595 43
Whitley County 39 428 43
Clinton County 32 353 39
Jasper County 66 1,180 38
Newton County 38 636 37
Grant County 47 670 36
Franklin County 10 393 36
Hendricks County 53 615 35
Hancock County 60 590 35
Madison County 48 457 35
Wayne County 59 640 33
Posey County 8 104 33
Jay County 32 487 32
Owen County 18 226 31
Boone County 31 588 28
Clark County 11 265 28
Vermillion County 14 178 28
Huntington County 32 409 27
Putnam County 23 297 27
Howard County 44 749 25
Pulaski County 33 393 25
Ripley County 10 85 24
Warrick County 10 65 24
Randolph County 44 373 23
Johnson County 32 770 22
Carroll County 30 503 22
Knox County 18 495 21
Dubois County 11 97 18
Sullivan County 13 89 18
Fulton County 30 282 17
Gibson County 12 177 17
Brown County 5 87 17
Shelby County 37 342 16
Henry County 57 563 14
Wells County 23 343 14
Morgan County 21 305 13
Greene County 8 115 13
Pike County 6 91 11
Tipton County 16 474 10
Clay County 15 140 10
Spencer County 15 292 9
Benton County 8 176 9
Orange County 6 86 9
Bartholomew County 13 87 8
Ohio County 3 27 8
Vanderburgh County 6 101 7
Jackson County 10 138 5
Fayette County 10 102 5
Dearborn County 10 63 4
Switzerland County 5 50 4
Crawford County 7 69 3
Perry County 6 109 2
Daviess County 8 93 2
Martin County 5 42 2
Harrison County 8 37 2
Blackford County 4 26 2
Union County 10 60 1
Jefferson County 9 52 0
Floyd County 4 19 0