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Indiana Water Quality
3,967 public water systems serving 5,774,616 people.
Water Systems
3,967
Total Violations
352,710
Violation Rate
95.8%
PFAS Detection
40.6%
93 of 229 tested
Largest Water Systems
CITIZENS WATER - INDIANAPOLIS
INDIANAPOLIS, IN · 880,345 served
FORT WAYNE - 3 RIVERS FILTRATION PLANT
FORT WAYNE, IN · 269,994 served
INDIANA AMERICAN WATER - NORTHWEST
GREENWOOD, IN · 210,510 served
EVANSVILLE WATER UTILITY
EVANSVILLE, IN · 182,444 served
SOUTH BEND WATER WORKS
SOUTH BEND, IN · 115,000 served
INDIANA AMERICAN WATER - S. INDIANA
GREENWOOD, IN · 104,445 served
CARMEL WATER DEPARTMENT
CARMEL, IN · 99,927 served
INDIANA AMERICAN WATER - JOHNSON COUNTY
GREENWOOD, IN · 86,813 served
CITY OF BLOOMINGTON UTILITIES
BLOOMINGTON, IN · 83,000 served
HAMMOND WATER WORKS DEPARTMENT
HAMMOND, IN · 78,384 served
INDIANA AMERICAN WATER - MUNCIE
GREENWOOD, IN · 74,030 served
LAFAYETTE WATER WORKS
LAFAYETTE, IN · 70,835 served
INDIANA AMERICAN WATER - TERRE HAUTE
GREENWOOD, IN · 67,765 served
CITIZENS WATER OF WESTFIELD, LLC
INDIANAPOLIS, IN · 61,493 served
INDIANA AMERICAN WATER - KOKOMO
GREENWOOD, IN · 59,313 served
ANDERSON WATER DEPARTMENT
ANDERSON, IN · 58,942 served
COLUMBUS MUNICIPAL UTILITY
COLUMBUS, IN · 51,122 served
PURDUE UNIV. WATER WORKS
WEST LAFAYETTE, IN · 50,000 served
MISHAWAKA UTILITIES
MISHAWAKA, IN · 49,675 served
CITY OF LAWRENCE UTILITIES
INDIANAPOLIS, IN · 49,000 served
Most Violations
#1 WILLOW SPRINGS MHP GREENFIELD
4,792 #2 PLYMOUTH COMMUNITY CHURCH PLYMOUTH
3,151 #3 FOREST RIVER - RANCE ALUMINUM, DIV. 46 MISHAWAKA
2,489 #4 A & A SHEET METAL PRODUCTS LAPORTE
2,000 #5 SHADY GROVE MOBILE HOME PARK VALPARAISO
1,998 #6 CREEKSIDE MANOR MHP LAPAZ
1,992 #7 COUNTRY VIEW ESTATES CRAWFORDSVILLE
1,812 #8 RIVER BEND MANOR MOBILE HOME PARK ROSELAWN
1,785 #9 CHURCH OF THE HEARTLAND STARKE CO., INC WINAMAC
1,661 #10 SPRINGHILL MOBILE HOME COURT LAPORTE
1,619 #11 RENAISSANCE ACADEMY LAPORTE
1,552 #12 RUSSELLVILLE WATER WORKS RUSSELLVILLE
1,340 #13 GOOD SHEPHERD UMC/LITTLE LAMB CHLDRN MIN INDIANAPOLIS
1,286 #14 DANA WATER WORKS DANA
1,191 #15 GATEWOOD ESTATES PLYMOUTH
1,179 Counties in Indiana
Marion
56 systems · 949,929 served
· 5,652 violations
Lake
108 systems · 539,424 served
· 12,533 violations
Allen
91 systems · 324,113 served
· 5,221 violations
Hamilton
66 systems · 229,377 served
· 6,714 violations
St. Joseph
221 systems · 218,797 served
· 16,354 violations
Vanderburgh
6 systems · 195,582 served
· 332 violations
Clark
11 systems · 186,708 served
· 1,313 violations
Tippecanoe
88 systems · 175,836 served
· 7,057 violations
Johnson
33 systems · 154,825 served
· 2,956 violations
Elkhart
282 systems · 138,184 served
· 26,344 violations
Monroe
11 systems · 126,334 served
· 676 violations
Madison
49 systems · 103,123 served
· 2,880 violations
Delaware
66 systems · 97,615 served
· 4,362 violations
LaPorte
126 systems · 95,164 served
· 20,287 violations
Vigo
29 systems · 87,540 served
· 2,997 violations
Hendricks
53 systems · 85,793 served
· 3,666 violations
Bartholomew
15 systems · 76,992 served
· 1,592 violations
Howard
44 systems · 73,406 served
· 5,685 violations
Warrick
10 systems · 63,888 served
· 682 violations
Dubois
11 systems · 61,963 served
· 930 violations
Morgan
23 systems · 61,105 served
· 2,842 violations
Kosciusko
305 systems · 61,088 served
· 26,339 violations
Porter
83 systems · 60,757 served
· 6,413 violations
Wayne
59 systems · 58,098 served
· 4,578 violations
Grant
47 systems · 52,670 served
· 3,905 violations
Dearborn
10 systems · 46,909 served
· 431 violations
Lawrence
6 systems · 46,335 served
· 1,011 violations
Hancock
60 systems · 45,547 served
· 4,984 violations
Harrison
8 systems · 41,282 served
· 526 violations
Steuben
145 systems · 40,851 served
· 6,810 violations
Showing top 30 of 92 counties.