Indiana Drinking Water Compliance Records
766 water systems serving 5,231,650 people. 1,839 historical EPA violation records in the Q2 2026 snapshot.
TapScore Compliance-History Grades
A
724
95%
B
25
3%
C
14
2%
D
2
0%
F
1
0%
766
Water Systems
5,231,650
Population Served
1,839
Historical Records
47
Health-Based (All Years)
Systems With the Most Recent EPA Records
WILLOW SPRINGS MHP
25 served213 historical records46 recent
F
GATEWOOD ESTATES
202 served52 historical records23 recent
C
SHADY GROVE MOBILE HOME PARK
100 served56 historical records17 recent
C
SUNSET VILLAGE & RV PARK
25 served15 historical records14 recent
D
MICHIANA ESTATES LLC - WATER SYSTEM
35 served30 historical records13 recent
C
KINGS COURT MOBILE HOME PARK
70 served25 historical records12 recent
C
RIVER BEND MANOR MOBILE HOME PARK
44 served11 historical records10 recent
C
ZIONSVILLE MHP TRUST
57 served12 historical records8 recent
C
NORTH VERNON WATER DEPARTMENT
6,500 served14 historical records6 recent
D
CREEKSIDE MANOR MHP
73 served59 historical records5 recent
C
Large Systems With No Recent Records
CITIZENS WATER - INDIANAPOLIS
880,345 served10 historical records
A
FORT WAYNE - 3 RIVERS FILTRATION PLANT
269,994 served1 historical record
A
INDIANA AMERICAN WATER - NORTHWEST
210,510 served1 historical record
A
EVANSVILLE WATER UTILITY
182,444 served6 historical records
A
SOUTH BEND WATER WORKS
115,000 served2 historical records
A
INDIANA AMERICAN WATER - S. INDIANA
104,445 served1 historical record
A
CARMEL WATER DEPARTMENT
99,927 served0 historical records
A
INDIANA AMERICAN WATER - JOHNSON COUNTY
86,813 served0 historical records
A
CITY OF BLOOMINGTON UTILITIES
83,000 served5 historical records
A
HAMMOND WATER WORKS DEPARTMENT
78,384 served6 historical records
A
Largest Water Systems in Indiana
| Water System | Grade | Population | Historical Records |
|---|---|---|---|
| CITIZENS WATER - INDIANAPOLIS | A | 880,345 | 10 |
| FORT WAYNE - 3 RIVERS FILTRATION PLANT | A | 269,994 | 1 |
| INDIANA AMERICAN WATER - NORTHWEST | A | 210,510 | 1 |
| EVANSVILLE WATER UTILITY | A | 182,444 | 6 |
| SOUTH BEND WATER WORKS | A | 115,000 | 2 |
| INDIANA AMERICAN WATER - S. INDIANA | A | 104,445 | 1 |
| CARMEL WATER DEPARTMENT | A | 99,927 | 0 |
| INDIANA AMERICAN WATER - JOHNSON COUNTY | A | 86,813 | 0 |
| CITY OF BLOOMINGTON UTILITIES | A | 83,000 | 5 |
| HAMMOND WATER WORKS DEPARTMENT | A | 78,384 | 6 |
| INDIANA AMERICAN WATER - MUNCIE | A | 74,030 | 1 |
| LAFAYETTE WATER WORKS | A | 70,835 | 1 |
| INDIANA AMERICAN WATER - TERRE HAUTE | A | 67,765 | 8 |
| CITIZENS WATER OF WESTFIELD, LLC | A | 61,493 | 2 |
| INDIANA AMERICAN WATER - KOKOMO | A | 59,313 | 4 |
| ANDERSON WATER DEPARTMENT | A | 55,212 | 2 |
| COLUMBUS MUNICIPAL UTILITY | A | 51,122 | 1 |
| PURDUE UNIV. WATER WORKS | A | 50,000 | 0 |
| MISHAWAKA UTILITIES | A | 49,675 | 1 |
| CITY OF LAWRENCE UTILITIES | A | 49,000 | 2 |
Contaminants in Indiana
Lead in IndianaArsenic in IndianaNitrate in IndianaFluoride in IndianaPFOS in IndianaPFOA in IndianaTHMs in IndianaHAA5 in Indiana
Cities in Indiana
INDIANAPOLIS(21)GREENWOOD(32)FORT WAYNE(8)MERRILLVILLE(3)GARY(1)EVANSVILLE(2)CARMEL(4)JEFFERSONVILLE(4)SOUTH BEND(4)BLOOMINGTON(11)WEST LAFAYETTE(2)HAMMOND(1)TERRE HAUTE(8)MUNCIE(6)LAFAYETTE(6)KOKOMO(8)COLUMBUS(3)ANDERSON(3)MISHAWAKA(2)LAWRENCE(1)ELKHART(3)NOBLESVILLE(7)NEWBURGH(3)RICHMOND(4)CROWN POINT(6)VALPARAISO(5)PLAINFIELD(3)BROWNSBURG(2)MICHIGAN CITY(5)BARGERSVILLE(1)BEDFORD(3)GOSHEN(3)MARTINSVILLE(6)SCHERERVILLE(2)GREENFIELD(5)MARION(2)EAST CHICAGO(1)LAWRENCEBURG(4)ST. JOHN(1)WASHINGTON(3)MADISON(4)NEW CASTLE(6)HIGHLAND(1)HIGHLAND (HIGHLANDS)(1)MUNSTER(1)LAPORTE(3)DUBOIS(2)SEYMOUR(3)VINCENNES(2)NORTH VERNON(6)CHANDLER(1)BLOOMFIELD(2)MOORESVILLE(4)SHELBYVILLE(5)SALEM(3)LOGANSPORT(4)GREENCASTLE(6)HUNTINGTON(3)AURORA(4)AUSTIN(1)GREENSBURG(3)JASPER(1)MORGANTOWN(3)GRIFFITH(2)LEBANON(1)DYER(1)WARSAW(10)FRANKFORT(3)RAMSEY(1)CRAWFORDSVILLE(2)SELLERSBURG(2)NEW HAVEN(1)CONNERSVILLE(5)PERU(12)CORYDON(2)BROWNSTOWN(2)TELL CITY(4)ELLETTSVILLE(1)BOONVILLE(2)GEORGETOWN(3)HUNTERTOWN(1)TAYLORSVILLE(1)AUBURN(2)OAKLAND CITY(2)WABASH(8)LOWELL(3)BRAZIL(1)PATRIOT(1)GREENVILLE(2)BROOKVILLE(3)MITCHELL(2)LINTON(2)BORDEN(1)PRINCETON(1)SPENCER(2)MILAN(2)PLYMOUTH(6)HANOVER(3)SPEEDWAY(1)ANGOLA(13)