Indiana Water Systems

Compiled by PlainEnviro · August 25, 2026

712 community water systems in Indiana, ranked by violation count. Data from EPA Safe Drinking Water Information System (SDWIS).

Water Systems

712

Health-Based Violation Records

1,514

Health Violations

253 systems

Population Served

5,217,170

Indiana community water systems are regulated by the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act; each utility files compliance results with the state's primacy agency and, for federally listed contaminants, with the U.S. Environmental Protection Agency directly. PlainEnviro's health-based SDWIS extract above counts health-based exceedances only -- monitoring and reporting violations are not present in these figures.

Violation counts reflect both infrastructure realities and reporting diligence, a state with more small rural systems will accumulate more monitoring-type violations without necessarily delivering worse water. Health-based violations are the stronger safety signal. A past violation does not itself indicate current unsafe water; utilities must notify customers, remediate, and publish an annual Consumer Confidence Report. All numbers below draw directly from the federal SDWIS record.

Which water systems have violations? (153)

#	System Name	City	Source	Violations	Pop. Served	Health
1	SCOTTSBURG WATER DEPARTMENT Scottsburg	Scottsburg	Surface Water	120	7,369	Yes
2	SALEM WATER WORKS Salem	Salem	Surface Water	71	8,200	Yes
3	KINGMAN WATER WORKS Kingman	Kingman	Groundwater	64	560	Yes
4	OOLITIC WATER WORKS Oolitic	Oolitic	Surface Water	63	1,315	Yes
5	WESTPORT WATER COMPANY Westport	Westport	Surface Water	55	1,725	Yes
6	BURNT PINES WATER ASSOCIATION North Vernon	North Vernon	Surface Water	38	900	Yes
7	NORTH VERNON WATER DEPARTMENT North Vernon	North Vernon	Surface Water	35	6,500	Yes
8	EAST WASHINGTON RURAL WATER Salem	Salem	Surface Water	32	8,613	Yes
9	MONTEZUMA MUNICIPAL UTILITY Montezuma	Montezuma	Groundwater	31	1,022	Yes
10	POSEYVILLE MUNICIPAL WATER DEPARTMENT Poseyville	Poseyville	Groundwater	29	1,400	Yes
11	STUCKER FORK WATER UTILITY Austin	Austin	Surface Water	18	17,718	Yes
12	BORDEN TRI-COUNTY REGION Borden	Borden	Surface Water	18	11,000	Yes
13	LYNNVILLE WATER WORKS Lynnville	Lynnville	Surface Water	18	1,200	Yes
14	INDIANA AMERICAN WATER - LOWELL Greenwood	Greenwood	Surface Water	17	11,908	Yes
15	GREENSBURG MUNICIPAL WATER WORKS Greensburg	Greensburg	Surface Water	15	12,650	Yes
16	LAUREL WATER DEPARTMENT Laurel	Laurel	Groundwater	15	800	Yes
17	KIRKLIN WATER DEPARTMENT Kirklin	Kirklin	Groundwater	14	788	Yes
18	NAPOLEON COMMUNITY RURAL WATER CORP. Napoleon	Napoleon	Surface Water	12	5,564	Yes
19	NEW PEKIN WATER UTILITY Pekin	Pekin	Surface Water	12	2,150	Yes
20	HAUBSTADT WATER DEPARTMENT Haubstadt	Haubstadt	Surface Water	12	1,600	Yes
21	LYFORD WATER WORKS Rosedale	Rosedale	Groundwater	12	1,000	Yes
22	BLOOMINGDALE WATER WORKS Bloomingdale	Bloomingdale	Groundwater	11	562	Yes
23	HAYDEN WATER ASSOCIATION North Vernon	North Vernon	Groundwater	10	2,395	Yes
24	DUFF WATER CORPORATION Huntingburg	Huntingburg	Surface Water	9	825	Yes
25	ELLETTSVILLE WATER WORKS Ellettsville	Ellettsville	Surface Water	8	14,500	Yes
26	EAST MONROE WATER CORPORATION Bloomington	Bloomington	Surface Water	8	3,648	Yes
27	GRABILL WATER WORKS Grabill	Grabill	Surface Water	8	1,163	Yes
28	VERNON WATER DEPARTMENT Vernon	Vernon	Surface Water	8	538	Yes
29	CARMEL WATER DEPARTMENT Carmel	Carmel	Surface Water	7	99,927	Yes
30	POSEY TOWNSHIP WATER CORP. Hardinsburg	Hardinsburg	Surface Water	7	3,500	Yes
31	OTWELL WATER CORPORATION Otwell	Otwell	Surface Water	7	2,100	Yes
32	LAKE SANTEE RWWD Greensburg	Greensburg	Surface Water	7	1,500	Yes
33	CITY OF LAWRENCE UTILITIES Indianapolis	Indianapolis	Groundwater	6	49,000	Yes
34	ABERDEEN PATE WATER COMPANY, INC. Aurora	Aurora	Groundwater	6	4,787	Yes
35	BREMEN WATER DEPARTMENT Bremen	Bremen	Groundwater	6	4,516	Yes
36	LYONS WATER UTILITY Lyons	Lyons	Groundwater	6	1,125	Yes
37	RURAL MEMBERSHIP WATER CORP. OF CLARK CO Henryville	Henryville	Groundwater	5	8,630	Yes
38	CITIZENS WATER - WHITESTOWN Indianapolis	Indianapolis	Surface Water	5	5,880	Yes
39	MONTICELLO WATER WORKS Monticello	Monticello	Groundwater	5	5,300	Yes
40	LAPEL MUNICIPAL WATER COMPANY Lapel	Lapel	Groundwater	5	2,379	Yes
41	MILAN WATER WORKS Milan	Milan	Groundwater	5	2,070	Yes
42	REMINGTON WATER WORKS Remington	Remington	Groundwater	5	1,182	Yes
43	MONROE CITY WATER UTILITIES Monroe City	Monroe City	Groundwater	5	813	Yes
44	CITY OF BLOOMINGTON UTILITIES Bloomington	Bloomington	Surface Water	4	83,000	Yes
45	ANDERSON WATER DEPARTMENT Anderson	Anderson	Surface Water	4	55,212	Yes
46	LAPORTE WATER WORKS Laporte	Laporte	Groundwater	4	22,197	Yes
47	HUNTINGTON WATER DEPARTMENT Huntington	Huntington	Groundwater	4	17,300	Yes
48	HOOSIER HILLS REGIONAL WATER DISTRICT Milan	Milan	Groundwater	4	8,660	Yes
49	HUNTINGBURG MUNICIPAL WATER Huntingburg	Huntingburg	Surface Water	4	6,526	Yes
50	PENDLETON WATER COMPANY Pendleton	Pendleton	Groundwater	4	5,758	Yes
51	TENNYSON WATER UTILITY Tennyson	Tennyson	Surface Water	4	4,158	Yes
52	DECATUR CO. WATER CORP. Greensburg	Greensburg	Surface Water	4	3,440	Yes
53	ST. PAUL MUNICIPAL WATER Arlington	Arlington	Groundwater	4	1,096	Yes
54	OLDENBURG WATER WORKS Oldenburg	Oldenburg	Surface Water	4	880	Yes
55	VAN BUREN MUNICIPAL UTILITIES Van Buren	Van Buren	Groundwater	4	864	Yes
56	FORT WAYNE - 3 RIVERS FILTRATION PLANT Fort Wayne	Fort Wayne	Surface Water	3	269,994	Yes
57	GREENCASTLE DEPARTMENT OF WATER Greencastle	Greencastle	Surface Water	3	12,699	Yes
58	NORTH LAWRENCE WATER AUTHORITY Bedford	Bedford	Surface Water	3	11,625	Yes
59	PIKE-GIBSON WATER, INC. Oakland City	Oakland City	Surface Water	3	10,000	Yes
60	INDIANA AMERICAN WATER - CHARLESTOWN Greenwood	Greenwood	Groundwater	3	8,658	Yes
61	FORT BRANCH WATER DEPARTMENT Fort Branch	Fort Branch	Groundwater	3	4,020	Yes
62	JASONVILLE WATER DEPARTMENT Jasonville	Jasonville	Groundwater	3	3,660	Yes
63	OAKLAND CITY WATER DEPARTMENT Oakland City	Oakland City	Surface Water	3	2,938	Yes
64	CENTERVILLE WATER WORKS Milton	Milton	Groundwater	3	2,533	Yes
65	BATTLE GROUND WATER DISTRICT Battle Ground	Battle Ground	Groundwater	3	1,940	Yes
66	WOLCOTTVILLE WATER WORKS Hamilton	Hamilton	Groundwater	3	1,035	Yes
67	BIRDSEYE WATER SYSTEM Birdseye	Birdseye	Surface Water	3	972	Yes
68	NEW MARKET WATER WORKS New Market	New Market	Groundwater	3	765	Yes
69	HILLSBORO WATER UTILITY Hillsboro	Hillsboro	Groundwater	3	540	Yes
70	HAMMOND WATER WORKS DEPARTMENT Hammond	Hammond	Surface Water	2	78,384	Yes
71	PLAINFIELD WATER WORKS Plainfield	Plainfield	Groundwater	2	34,477	Yes
72	LEBANON UTILITIES Lebanon	Lebanon	Groundwater	2	16,840	Yes
73	GERMAN TOWNSHIP WATER DISTRICT INC. Evansville	Evansville	Surface Water	2	12,890	Yes
74	SOUTHERN MONROE WATER AUTHORITY Bloomington	Bloomington	Surface Water	2	8,877	Yes
75	ELWOOD WATER & SEWAGE Elwood	Elwood	Groundwater	2	8,586	Yes
76	VAN BUREN WATER, INC. Bloomington	Bloomington	Surface Water	2	6,670	Yes
77	NAVAL WEAPONS STATION, CRANE Crane	Crane	Surface Water	2	6,538	Yes
78	GAS CITY WATER DEPARTMENT Gas City	Gas City	Groundwater	2	6,000	Yes
79	NEW CHICAGO WATER WORKS Hobart	Hobart	Surface Water	2	5,500	Yes
80	CAMP ATTERBURY Edinburgh	Edinburgh	Groundwater	2	5,300	Yes
81	LAWRENCEBURG MUNICIPAL UTILITIES Lawrenceburg	Lawrenceburg	Groundwater	2	5,000	Yes
82	PLAINFIELD RE-ENTRY EDUCATIONAL FACILITY Plainfield	Plainfield	Groundwater	2	4,500	Yes
83	ROCKPORT WATER Rockport	Rockport	Groundwater	2	2,520	Yes
84	DUGGER UTILITIES Dugger	Dugger	Groundwater	2	1,935	Yes
85	WESTVILLE WATER DEPARTMENT Westville	Westville	Groundwater	2	1,800	Yes
86	HAGERSTOWN MUNICIPAL WATER WORKS Hagerstown	Hagerstown	Groundwater	2	1,700	Yes
87	ARGOS MUNICIPAL WATER PLANT Argos	Argos	Groundwater	2	1,680	Yes
88	HOGAN WATER CORPORATION Aurora	Aurora	Groundwater	2	1,238	Yes
89	WARREN MUNICIPAL WATER WORKS Warren	Warren	Groundwater	2	1,237	Yes
90	TROY WATER UTILITY Troy	Troy	Groundwater	2	1,223	Yes
91	HOLLAND WATER WORKS Holland	Holland	Surface Water	2	1,200	Yes
92	MOROCCO WATER DEPARTMENT Morocco	Morocco	Groundwater	2	1,200	Yes
93	CLAY CITY WATER WORKS Clay City	Clay City	Groundwater	2	1,152	Yes
94	ANDREWS WATER DEPARTMENT Andrews	Andrews	Groundwater	2	1,149	Yes
95	CARTHAGE WATER DEPARTMENT New Castle	New Castle	Groundwater	2	1,000	Yes
96	FRANCESVILLE WATER DEPARTMENT Francesville	Francesville	Groundwater	2	969	Yes
97	INDIANA AMERICAN WATER - MECCA Greenwood	Greenwood	Groundwater	2	905	Yes
98	BAINBRIDGE WATER WORKS Bainbridge	Bainbridge	Groundwater	2	830	Yes
99	LINDEN WATER DEPARTMENT Linden	Linden	Groundwater	2	759	Yes
100	PATOKA WATER & ELECTRIC Patoka	Patoka	Groundwater	2	750	Yes
101	ST. BERNICE WATER CORP. St. Bernice	St. Bernice	Groundwater	2	750	Yes
102	COLFAX WATER COMPANY Colfax	Colfax	Groundwater	2	690	Yes
103	SHARPSVILLE WATER UTILITY Sharpsville	Sharpsville	Groundwater	2	553	Yes
104	NEW HAVEN WATER DEPARTMENT New Haven	New Haven	Surface Water	1	15,700	Yes
105	WASHINGTON WATER WORKS Washington	Washington	Groundwater	1	13,690	Yes
106	FORTVILLE WATER WORKS Fortville	Fortville	Groundwater	1	7,638	Yes
107	LINTON MUNICIPAL WATER UTILITY Linton	Linton	Groundwater	1	7,430	Yes
108	UNIVERSITY OF NOTRE DAME Notre Dame	Notre Dame	Groundwater	1	7,400	Yes
109	MARYSVILLE OTISCO NABB WATER CORP. Marysville	Marysville	Groundwater	1	6,813	Yes
110	RUSHVILLE CITY UTILITY Rushville	Rushville	Groundwater	1	6,800	Yes
111	ROCHESTER WATER DEPARTMENT Rochester	Rochester	Groundwater	1	6,218	Yes
112	WHITELAND WATER WORKS Whiteland	Whiteland	Groundwater	1	5,955	Yes
113	CITIZENS WATER - MORGAN Indianapolis	Indianapolis	Groundwater	1	5,705	Yes
114	WHITING WATER DEPARTMENT Whiting	Whiting	Surface Water	1	4,900	Yes
115	CEDAR LAKE WATER WORKS Cedar Lake	Cedar Lake	Groundwater	1	4,600	Yes
116	TOWN OF ELIZABETH Elizabeth	Elizabeth	Groundwater	1	4,450	Yes
117	PITTSBORO WATER COMPANY Brownsburg	Brownsburg	Surface Water	1	4,113	Yes
118	KNOX WATER WORKS Knox	Knox	Groundwater	1	3,700	Yes
119	MIDDLEBURY WATER DEPARTMENT Middlebury	Middlebury	Groundwater	1	3,420	Yes
120	DELPHI WATER WORKS Delphi	Delphi	Groundwater	1	3,200	Yes
121	WESTVILLE CORRECTIONAL FACILITY Westville	Westville	Groundwater	1	2,850	Yes
122	ALBION WATER & SEWER Albion	Albion	Groundwater	1	2,349	Yes
123	ELBERFELD WATER DEPARTMENT Elberfeld	Elberfeld	Surface Water	1	2,122	Yes
124	BLUE RIVER REGIONAL WATER DISTRICT Milltown	Milltown	Groundwater	1	2,000	Yes
125	WAKARUSA WATER WORKS Wakarusa	Wakarusa	Groundwater	1	1,998	Yes
126	NINESTAR CONNECT - GEM WATER Greenfield	Greenfield	Groundwater	1	1,837	Yes
127	CHURUBUSCO WATER DEPARTMENT Churubusco	Churubusco	Groundwater	1	1,803	Yes
128	ODON WATER UTILITIES, INC. Odon	Odon	Groundwater	1	1,703	Yes
129	GENTRYVILLE WATER UTILITY Gentryville	Gentryville	Surface Water	1	1,625	Yes
130	KNIGHTSVILLE WATER WORKS Terre Haute	Terre Haute	Groundwater	1	1,523	Yes
131	MONROEVILLE WATER WORKS Monroeville	Monroeville	Groundwater	1	1,400	Yes
132	PARKER CITY WATER DEPARTMENT Parker	Parker	Groundwater	1	1,400	Yes
133	CULVER WATER DEPARTMENT Culver	Culver	Groundwater	1	1,391	Yes
134	CONVERSE WATER WORKS Converse	Converse	Groundwater	1	1,265	Yes
135	MORRISTOWN WATER DEPARTMENT Morristown	Morristown	Groundwater	1	1,218	Yes
136	AKRON WATER DEPARTMENT Akron	Akron	Groundwater	1	1,206	Yes
137	FREELANDVILLE WATER ASSOCIATION Freelandville	Freelandville	Groundwater	1	1,175	Yes
138	CARLISLE WATER DEPARTMENT Jasonville	Jasonville	Groundwater	1	1,152	Yes
139	OGDEN DUNES WATER Ogden Dunes	Ogden Dunes	Surface Water	1	1,110	Yes
140	PATOKA WATER COMPANY, INC. Birdseye	Birdseye	Surface Water	1	1,038	Yes
141	LANESVILLE WATER WORKS Lanesville	Lanesville	Groundwater	1	1,009	Yes
142	ROACHDALE WATER WORKS Roachdale	Roachdale	Groundwater	1	980	Yes
143	SHIRLEY MUNICIPAL WATER Shirley	Shirley	Groundwater	1	960	Yes
144	RHS WATER CORPORATION Bloomington	Bloomington	Surface Water	1	870	Yes
145	ATLANTA WATER DEPARTMENT Atlanta	Atlanta	Groundwater	1	735	Yes
146	HILLSDALE WATER CORPORATION Hillsdale	Hillsdale	Groundwater	1	735	Yes
147	WINDFALL WATER DEPARTMENT Greenwood	Greenwood	Groundwater	1	708	Yes
148	PENNVILLE WATER COMPANY Dunkirk	Dunkirk	Groundwater	1	706	Yes
149	DANA WATER WORKS Dana	Dana	Groundwater	1	660	Yes
150	AQUA INDIANA - WEDGEWOOD PARK WATER UTIL Indianapolis	Indianapolis	Groundwater	1	645	Yes
151	STAUNTON MUNICIPAL WATER Centerpoint	Centerpoint	Groundwater	1	550	Yes
152	CROMWELL WATER WORKS Fort Wayne	Fort Wayne	Groundwater	1	550	Yes
153	LACROSSE WATER DEPARTMENT North Judson	North Judson	Groundwater	1	540	Yes

Systems with No Violations (347)

347 water systems in Indiana have zero recorded violations. Showing the 50 largest by population served.

All Water Systems in Indiana (712)

Page 14 of 15, ordered by population served.

System	Population Served	Violations
SUBURBAN COURT APARTMENTS	53	0
HILLTOP RIDGE APARTMENTS	52	0
GREEN ACRES MOBILE ESTATES	51	1
CADE APARTMENTS	50	0
INWOOD ESTATES	50	0
RIVERSIDE COMMUNITY	50	4
ROCKY ACRES MOBILE HOME PARK	50	0
CARRIAGE HOUSE ESTATES	50	3
HOMESTEAD WATER ASSOCIATION	50	0
LEISURE ACRES MOBILE HOME PARK	49	2
AUTUMN ACRES SUBDIVISION	48	2
COUNTRYSIDE VILLAS	48	1
LAZY OAKS	48	0
NORTHPORT MOBILE HOME PARK	47	0
PINECREST/STUCKMAN MOBILE HOME PARKS	46	0
LAKE OF THE WOODS MHP	46	3
SACRED HEART APOSTOLIC SCHOOL	46	1
HICKORY LAKE WATER MANAGEMENT ORG	45	0
ROCKWELL SHORES APARTMENTS	45	0
OAKWOOD MOBILE HOME PARK	45	0
STONEY CREEK ESTATES MHC, LLC	45	3
COUNTRY CLUB CROSSING	44	0
WINDSTAR PARK INC.	44	7
RIVER BEND MANOR MOBILE HOME PARK	44	1
TIPPY BEND MOBILE HOME PARK	40	0
STI-BEL MOBILE HOME PARK	40	3
MUSCATATUCK URBAN TRAINING CENTER	40	0
SUNSET HARBOR CONDOMINIUMS	40	0
RILEY RESORT LAND TRUST	39	28
ST JUDE VILLAGE WATER CORPORATION	38	0
BIG OAKS CAMPGROUND	37	0
PENCE WATER WORKS	37	6
DISTRICT 39 APARTMENTS	36	0
DAVIS MOBILE HOME PARK	35	3
LITTLE EAGLE CREEK ESTATES	35	1
GLEN EDEN ASSOCIATION	35	0
COUNTRY RETREAT MHC, LLC	35	1
CEDAR GARDENS MHP	34	2
LIBERTY COUNTRY CLUB- HOUSING DEVELOP.	34	0
GREEN ACRES MOBILE HOME PARK	32	1
QUEEN ROAD MOBILE HOME PARK	32	1
LEISURE LANE MOBILE HOME PARK	31	1
WAUBEE LAKE MOBILE HOME PARK	30	3
OAK WOOD CIRCLE	30	14
COUNTRY VIEW ESTATES	30	7
MOBIL-RAMA	30	2
LINDA ANN MOBILE HOME PARK	30	0
SALAMONIE COUNTRY ESTATES	30	2
HILLTOP RIDGE APARTMENTS PHASE TWO	29	0
HARRIS HILLS MOBILE HOME PARK	27	7

← Previous Page 14 of 15 Next →

Frequently Asked Questions

How many water systems are in Indiana?

Indiana has 712 community water systems tracked by the EPA, serving a combined population of 5,217,170 people.

How many water systems in Indiana have health violations?

253 water systems in Indiana have health-based violations, which include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations. These represent 36% of all systems in the state.

How many health-based violation records are in this extract for Indiana?

PlainEnviro's health-based EPA SDWIS extract contains 1,514 records joined to 712 active community water systems in Indiana. Monitoring and reporting records are not included.

Explore More

Indiana Water Quality → Indiana Environmental Overview → All States →

Other States

AL AK AS AZ AR CA CO CT DE DC FL GA GU HI ID IL IA KS KY LA ME MD MA MI MN MS MO MT NE NV NH NJ NM NY NC ND MP OH OK OR PA PR RI SC SD TN TX VI UT VT VA WA WV WI WY

About This Data

Water system data is from the EPA Safe Drinking Water Information System (SDWIS). Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations that may pose a direct risk to public health. Only community water systems (CWS) are included.

Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services

Read our methodology - how this data is sourced, computed, and verified.

Browse all → | Rankings →