Indianapolis Water Quality
Indiana
The tap water in Indianapolis, Indiana is served by 21 EPA-regulated water systems covering approximately 1,007,220 people. 13 health-based violations are on record, most recently for 2950 in 2025. Data source: EPA Safe Drinking Water Information System.
Drinking water in Indianapolis, Indiana is delivered through 21 EPA-regulated community water systems serving an estimated 1,007,220 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
The SDWIS record for Indianapolis shows 13 total violations across all 21 systems, of which 13 are health-based, meaning either a Maximum Contaminant Level (MCL) was exceeded or a required treatment technique was not followed. Contaminants cited in health-based violations include 2950, 5200, 5000, 8000. 74 TRI-reporting industrial facilities are also located within the city limits.
A past EPA violation does not mean the water is currently unsafe, utilities are required to notify customers and remediate under state primacy oversight. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the Indiana drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| CITIZENS WATER - INDIANAPOLIS | 880,345 | 0 | Clean |
| CITIZENS WATER OF WESTFIELD, LLC | 61,493 | 0 | Clean |
| CITY OF LAWRENCE UTILITIES | 49,000 | 4 | Health |
| CITIZENS WATER - MORGAN | 5,705 | 1 | Health |
| NEW CASTLE CORRECTIONAL FACILITY | 3,160 | 0 | Clean |
| MADISON STATE HOSPITAL | 1,375 | 0 | Clean |
| AQUA INDIANA WATER COMPANY | 1,350 | 0 | Clean |
| DARLINGTON WATER | 860 | 0 | Clean |
| MOORESVILLE ACRES | 752 | 0 | Clean |
| APPLE VALLEY UTILITIES, INC. | 712 | 0 | Clean |
| INDIANA MASONIC HOME | 654 | 0 | Clean |
| AQUA INDIANA - WEDGEWOOD PARK WATER UTIL | 645 | 1 | Health |
| WESTERN ESTATES MOBILE HOME PARK | 248 | 0 | Clean |
| CHAIN O LAKES CORRECTIONAL FACILITY | 186 | 2 | Health |
| COUNTRY SIDE MOBILE HOME | 180 | 0 | Clean |
| RICHMOND MOBILE HOME PARK | 150 | 1 | Health |
| VILLAGE GREEN MOBILE HOME PARK | 102 | 3 | Health |
| EMERALD II | 98 | 1 | Health |
| CREEKSIDE MOBILE HOME PARK | 75 | 0 | Clean |
| AMERICAN MOBILE HOME PARK | 65 | 0 | Clean |
| CITIZENS WATER OF WESTFIELD LLC | 65 | 0 | Clean |
Does this city have health-based water violations?
Health-based violations indicate contaminant levels that exceeded EPA maximum contaminant levels (MCLs). This does not necessarily mean water is currently unsafe.
| Contaminant | Begin Date |
|---|---|
| 2950 | 2025-07-01 |
| 2950 | 2025-04-01 |
| 2950 | 2025-04-01 |
| 5200 | 2024-10-17 |
| 5200 | 2024-10-17 |
| 5000 | 2021-10-24 |
| 5000 | 2021-10-24 |
| 8000 | 2021-08-01 |
| 8000 | 2016-11-05 |
| 5000 | 1997-07-01 |
| 5000 | 1997-04-01 |
| 5000 | 1995-01-01 |
| 5000 | 1994-01-01 |
TRI Facilities in Indianapolis
| Facility | Total Releases |
|---|---|
| Heritage Environmental Services LLC | 25.3M lbs |
| Ecobat Resources Indiana LLC | 12.3M lbs |
| Heritage-Crystal Clean LLC - Re-Refinery | 801.5K lbs |
| 1500 South Tibbs LLC | 348.4K lbs |
| Lord Corp | 180.9K lbs |
| Allison Transmission Inc | 169.3K lbs |
| Superior Industrial Solutions Inc. | 161.1K lbs |
| Brenntag Mid-South Inc | 148.0K lbs |
| Micronutrients USA LLC | 147.7K lbs |
| Ingredion Inc Indianapolis Plant | 112.9K lbs |
Frequently Asked Questions
Is Indianapolis, Indiana water safe to drink? ▼
How many water violations does Indianapolis have? ▼
What contaminants were found in Indianapolis water? ▼
How many water systems serve Indianapolis? ▼
Where does Indianapolis get its drinking water? ▼
Are there pollution sources near Indianapolis? ▼
About This Data
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). Violations are reported by state agencies to EPA and include both health-based (MCL exceedances) and monitoring/reporting violations.
A reported violation does not necessarily mean water is currently unsafe to drink. Many violations are resolved quickly, and public water systems are required to notify customers of significant issues. For current water quality, contact your local water utility.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.