Troy Water Quality
Missouri
The tap water in Troy, Missouri is served by 14 EPA-regulated water systems covering approximately 14,480 people. 45 health-based violations are on record, most recently for 4010 in 2025. Data source: EPA Safe Drinking Water Information System.
Drinking water in Troy, Missouri is delivered through 14 EPA-regulated community water systems serving an estimated 14,480 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 Troy shows 45 total violations across all 14 systems, of which 45 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 4010, 4000, 0700, 8000. 2 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 Missouri 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 |
|---|---|---|---|
| TROY PWS | 12,500 | 0 | Clean |
| LINCOLN COUNTY PWSD 2 | 875 | 0 | Clean |
| ROCKPORT SUBDIVISION | 204 | 2 | Health |
| BENNINGTON ESTATES | 185 | 0 | Clean |
| HOMETOWN COURT | 152 | 2 | Health |
| PINE LAKE ESTATES | 115 | 0 | Clean |
| WESTMIER SUBDIVISION | 90 | 0 | Clean |
| BUELAH LAND ESTATES | 67 | 0 | Clean |
| BROOK HILL SUBDIVISION | 65 | 0 | Clean |
| DEER VALLEY SUBDIVISION | 65 | 0 | Clean |
| TARA VALLEY HOMEOWNERS ASSN | 60 | 23 | Health |
| RIDGECREST SUBDIVSION | 40 | 18 | Health |
| LAKE FOREST SUBDIVISION | 32 | 0 | Clean |
| SUMMERS CROSSING SUBDIVISION | 30 | 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 |
|---|---|
| 4010 | 2025-04-01 |
| 4000 | 2025-04-01 |
| 4010 | 2024-10-01 |
| 4000 | 2024-10-01 |
| 4010 | 2024-07-01 |
| 4000 | 2024-07-01 |
| 0700 | 2024-06-01 |
| 0700 | 2024-06-01 |
| 4010 | 2024-04-01 |
| 4010 | 2024-04-01 |
| 4000 | 2024-04-01 |
| 4000 | 2024-04-01 |
| 4010 | 2024-04-01 |
| 4010 | 2024-04-01 |
| 4010 | 2024-04-01 |
| 4010 | 2024-01-01 |
| 4010 | 2024-01-01 |
| 4000 | 2024-01-01 |
| 4000 | 2024-01-01 |
| 4010 | 2024-01-01 |
| 4010 | 2024-01-01 |
| 4010 | 2024-01-01 |
| 4010 | 2024-01-01 |
| 0700 | 2023-11-29 |
| 4000 | 2023-10-01 |
| 4000 | 2023-10-01 |
| 4000 | 2023-10-01 |
| 4000 | 2023-10-01 |
| 4010 | 2023-10-01 |
| 4010 | 2023-10-01 |
| 4010 | 2023-10-01 |
| 4010 | 2023-10-01 |
| 4010 | 2020-04-01 |
| 4010 | 2020-01-01 |
| 8000 | 2017-12-01 |
| 4010 | 2014-10-01 |
| 4000 | 2014-10-01 |
| 4010 | 2014-07-01 |
| 4000 | 2014-07-01 |
| 4010 | 2014-04-01 |
| 4000 | 2014-04-01 |
| 4010 | 2014-01-01 |
| 4000 | 2014-01-01 |
| 4010 | 2013-10-01 |
| 4000 | 2013-10-01 |
TRI Facilities in Troy
| Facility | Total Releases |
|---|---|
| Most Inc | 10.6K lbs |
| Toyota Motor Manufacturing Missouri Inc. | 6.9K lbs |
Frequently Asked Questions
Is Troy, Missouri water safe to drink? ▼
How many water violations does Troy have? ▼
What contaminants were found in Troy water? ▼
How many water systems serve Troy? ▼
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Are there pollution sources near Troy? ▼
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.