Chloramine in U.S. Drinking Water
Health-based violation data for Chloramine from EPA Safe Drinking Water Information System (SDWIS). Covers all community water systems with violations on record.
Chloramine has been found in violation of EPA standards in 18 water systems across 6 states, with 77 total health-based violations recorded. The most affected states are Kansas, Oklahoma, Texas.
Chloramine is regulated under the EPA Safe Drinking Water Act, which sets enforceable Maximum Contaminant Levels (MCLs) and associated treatment technique requirements for public water systems. The EPA Safe Drinking Water Information System (SDWIS) tracks every recorded violation nationwide and links it back to the specific public water system (PWSID), violation type, and begin date.
Across the United States, PlainEnviro's joined extract contains 77 health-based violation records carrying Chloramine (EPA code 1006) across 18 active community water systems in 6 states. Raw record counts are highest in Kansas, Oklahoma, Texas, with Kansas accounting for 18 records across 3 systems. Health-effect prose is shown only when the official ECHO substance name matches a verified topic; otherwise the portal stays silent rather than inventing guidance.
A health-based violation does not mean residents were necessarily harmed, it means the contaminant exceeded the federal MCL in a compliance sample, triggering notification and remediation requirements. States and utilities maintain primary enforcement responsibility. To check the status of a specific water system, request its most recent Consumer Confidence Report or consult the EPA's Drinking Water Watch portal for the corresponding state.
Violations by State
States ranked by number of health-based violations for Chloramine.
| # | State | Violations | Systems Affected |
|---|---|---|---|
| 1 | Kansas | 18 | 3 |
| 2 | Oklahoma | 11 | 2 |
| 3 | Texas | 7 | 3 |
| 4 | Louisiana | 6 | 2 |
| 5 | North Dakota | 5 | 3 |
| 6 | North Carolina | 2 | 1 |
Most Affected Water Systems
Top 50 water systems by number of Chloramine health-based violations.
| Water System | State | Violations |
|---|---|---|
| LONGTON, CITY OF | KS | 12 |
| DIBBLE | OK | 8 |
| VILLAGE OF WATERPROOF WATER SYSTEM | LA | 4 |
| RANDALL, CITY OF | KS | 3 |
| WILSON CO RWD 1 | KS | 3 |
| OKMULGEE CO. RWD #1 | OK | 3 |
| NORTHERN HILLS WATER SERVICE | TX | 3 |
| RRA FARMERS VALLEY WATER SYSTEM | TX | 3 |
| ST MARTIN INDUSTRIAL PARK WATER SYSTEM | LA | 2 |
| CHATHAM ESTATES MHP | NC | 2 |
| NEW HRADEC WATERWORKS | ND | 2 |
| ZAP CITY OF | ND | 2 |
| MAX CITY OF | ND | 1 |
| RRA MEDICINE MOUND WATER SYSTEM | TX | 1 |
Frequently Asked Questions
Is Chloramine in my water?
Chloramine has been detected in violation of EPA health standards in 18 water systems across 6 states. To check your specific utility, look up your annual Consumer Confidence Report (CCR) - water systems are required to disclose all violations.
How many water systems have Chloramine violations?
EPA SDWIS records show 18 community water systems with health-based Chloramine violations, totaling 77 violations. These represent cases where the contaminant exceeded the EPA Maximum Contaminant Level (MCL).
Which states have the most Chloramine violations?
The states with the most Chloramine violations are: Kansas (18 violations), Oklahoma (11 violations), Texas (7 violations), Louisiana (6 violations), North Dakota (5 violations).
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About This Data
Violation data is from the EPA Safe Drinking Water Information System (SDWIS). Only health-based violations are shown, these include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations. Monitoring and reporting violations are excluded. Data may not reflect the most current enforcement actions.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.