Sulphur Water Quality
Louisiana
The tap water in Sulphur, Louisiana is served by 3 EPA-regulated water systems covering approximately 45,906 people. 6 health-based violations are on record, most recently for 0700 in 2023. Data source: EPA Safe Drinking Water Information System.
Drinking water in Sulphur, Louisiana is delivered through 3 EPA-regulated community water systems serving an estimated 45,906 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 Sulphur shows 6 total violations across all 3 systems, of which 6 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 0700. 15 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 Louisiana 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 |
|---|---|---|---|
| SULPHUR CITY OF WATER SYSTEM | 24,489 | 2 | Health |
| CALCASIEU PARISH WW DIST 9 CARLYSS | 14,502 | 1 | Health |
| HOUSTON RIVER WATERWORKS DISTRICT 11 | 6,915 | 3 | Health |
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 |
|---|---|
| 0700 | 2023-10-05 |
| 0700 | 2023-10-05 |
| 0700 | 2023-10-05 |
| 0700 | 2020-01-01 |
| 0700 | 2020-01-01 |
| 0700 | 2013-01-15 |
TRI Facilities in Sulphur
| Facility | Total Releases |
|---|---|
| Chemical Waste Management - la Ke Charles Facility | 25.7M lbs |
| Citgo Petroleum Corp | 8.7M lbs |
| W R Grace & Co-Conn Grace | 4.7M lbs |
| Westlake Polymers LLC | 2.2M lbs |
| Westlake Petrochemicals Ethylene | 1.0M lbs |
| Firestone Polymers LLC | 461.3K lbs |
| Boardwalk Louisiana Midstream LLC | 233.6K lbs |
| Rain Cii Carbon LLC Lake Charles Calcining Plant (lccp) | 101.2K lbs |
| Westlake Styrene LLC - Styrene Marine Terminal | 45.4K lbs |
| Phillips 66 Co Gulf Coast Lubes Plant | 9.6K lbs |
Frequently Asked Questions
Is Sulphur, Louisiana water safe to drink? ▼
How many water violations does Sulphur have? ▼
What contaminants were found in Sulphur water? ▼
How many water systems serve Sulphur? ▼
Where does Sulphur get its drinking water? ▼
Are there pollution sources near Sulphur? ▼
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.