ST MARTIN WATER DISTRICT 4 - CATAHOULA
PWSID: LA1099004 · St. Martinville, LA · Serves 3,000 people
According to EPA Safe Drinking Water Information System (SDWIS), ST MARTIN WATER DISTRICT 4 - CATAHOULA (PWSID LA1099004) in St. Martinville, LA is listed as a CWS water system covering about 3,000 people. The same extract lists 19 health-based violation records spanning 2011-2025. Those 19 health-based rows for ST MARTIN WATER DISTRICT 4 - CATAHOULA cover contaminants such as Arsenic, Revised Total Coliform Rule, Groundwater Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
ST MARTIN WATER DISTRICT 4 - CATAHOULA has 19 health-based violation records in this historical extract. Monitoring and reporting records are not included.
PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 3 distinct EPA contaminant codes appear in this system's record, including Arsenic, Revised Total Coliform Rule, Groundwater Rule. Recorded violations span 2011–2025. Day-to-day primacy enforcement for this system runs through the Louisiana drinking-water program, not EPA directly.
A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Louisiana state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- LA1099004
- System Type
- CWS
- Water Source
- Groundwater
- Location
- St. Martinville, LA
- Population Served
- 3,000
- Health Violations
- Yes (19)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Arsenic | 15 | 15 |
| Revised Total Coliform Rule | 2 | 2 |
| Groundwater Rule | 2 | 2 |
Violation History (19)
| Contaminant | Health | Date |
|---|---|---|
| Arsenic | Yes | Jul 1, 2025 |
| Arsenic | Yes | Jul 1, 2025 |
| Arsenic | Yes | Apr 1, 2025 |
| Arsenic | Yes | Apr 1, 2025 |
| Arsenic | Yes | Jan 1, 2025 |
| Arsenic | Yes | Jan 1, 2025 |
| Arsenic | Yes | Oct 1, 2024 |
| Arsenic | Yes | Oct 1, 2024 |
| Arsenic | Yes | Oct 1, 2024 |
| Arsenic | Yes | Apr 1, 2024 |
| Arsenic | Yes | Apr 1, 2024 |
| Arsenic | Yes | Apr 1, 2024 |
| Arsenic | Yes | Jul 1, 2022 |
| Arsenic | Yes | Jul 1, 2022 |
| Arsenic | Yes | Jul 1, 2022 |
| Revised Total Coliform Rule | Yes | Jun 1, 2020 |
| Revised Total Coliform Rule | Yes | Sep 19, 2018 |
| Groundwater Rule | Yes | Mar 7, 2011 |
| Groundwater Rule | Yes | Mar 7, 2011 |
Frequently Asked Questions
What does EPA SDWIS list for ST MARTIN WATER DISTRICT 4 - CATAHOULA?
How many people does ST MARTIN WATER DISTRICT 4 - CATAHOULA serve?
What violations does ST MARTIN WATER DISTRICT 4 - CATAHOULA have?
What contaminants have been found in ST MARTIN WATER DISTRICT 4 - CATAHOULA water?
Compare beyond Louisiana
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest ST MARTIN WATER DISTRICT 4 - CATAHOULA on cumulative violation count (19) and EPA-reported population served (3,000). Violation-count peers include GAMBELL WATER SYSTEM, MURFREESBORO WATERWORKS, NORTH HOWARD RURAL WATER ASSOCIATION. Population peers include WOLF POINT CITY OF, Soboba, WILTON WATER WORKS.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Similar population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ gate).
Nearby Water Systems
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About This Data
ST MARTIN WATER DISTRICT 4 - CATAHOULA (LA1099004) is drawn from EPA SDWIS. Nearby county systems in this extract include VILLAGE OF PARKS WATER SYSTEM; CITY OF BREAUX BRIDGE WATER SYSTEM; CITY OF ST MARTINVILLE WATER SYSTEM; HENDERSON NINA WATER SYSTEM INC. Health-based rows (19 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.