ST MARYS WATER SYSTEM
PWSID: LA1015023 · Plain Dealing, LA · Serves 294 people
According to EPA Safe Drinking Water Information System (SDWIS), ST MARYS WATER SYSTEM (PWSID LA1015023) in Plain Dealing, LA is listed as a CWS water system covering about 294 people. The same extract lists 22 health-based violation records spanning 2014-2025. Those 22 health-based rows for ST MARYS WATER SYSTEM cover contaminants such as TTHM, Groundwater Rule, LEAD AND COPPER RULE REVISIONS; they remain historical EPA registry entries, not a current compliance or drinkability score.
ST MARYS WATER SYSTEM has 22 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. 4 distinct EPA contaminant codes appear in this system's record, including TTHM, Groundwater Rule, LEAD AND COPPER RULE REVISIONS. Recorded violations span 2014–2025. 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)
- LA1015023
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Plain Dealing, LA
- Population Served
- 294
- Health Violations
- Yes (22)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| TTHM | 12 | 12 |
| Groundwater Rule | 8 | 8 |
| LEAD AND COPPER RULE REVISIONS | 1 | 1 |
| Revised Total Coliform Rule | 1 | 1 |
Violation History (22)
| Contaminant | Health | Date |
|---|---|---|
| TTHM | Yes | Jan 1, 2025 |
| TTHM | Yes | Jan 1, 2025 |
| LEAD AND COPPER RULE REVISIONS | Yes | Oct 17, 2024 |
| Groundwater Rule | Yes | Mar 23, 2023 |
| Groundwater Rule | Yes | Mar 23, 2023 |
| Groundwater Rule | Yes | Mar 23, 2023 |
| Groundwater Rule | Yes | Mar 23, 2023 |
| Groundwater Rule | Yes | Mar 23, 2023 |
| Groundwater Rule | Yes | Mar 23, 2023 |
| Revised Total Coliform Rule | Yes | Mar 14, 2023 |
| Groundwater Rule | Yes | Mar 1, 2021 |
| TTHM | Yes | Oct 1, 2019 |
| TTHM | Yes | Jul 1, 2019 |
| TTHM | Yes | Apr 1, 2019 |
| Groundwater Rule | Yes | Jan 2, 2019 |
| TTHM | Yes | Jan 1, 2019 |
| TTHM | Yes | Jul 1, 2018 |
| TTHM | Yes | Jan 1, 2016 |
| TTHM | Yes | Oct 1, 2015 |
| TTHM | Yes | Jul 1, 2015 |
| TTHM | Yes | Apr 1, 2015 |
| TTHM | Yes | Jul 1, 2014 |
Frequently Asked Questions
What does EPA SDWIS list for ST MARYS WATER SYSTEM?
How many people does ST MARYS WATER SYSTEM serve?
What violations does ST MARYS WATER SYSTEM have?
What contaminants have been found in ST MARYS WATER SYSTEM water?
Compare beyond Louisiana
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest ST MARYS WATER SYSTEM on cumulative violation count (22) and EPA-reported population served (294). Violation-count peers include TWIN BUTTES WATER PLANT, MARION COUNTY PUBLIC WATER AUTHORITY, TAYLOR WATERWORKS.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Nearby Water Systems
Explore More
About This Data
ST MARYS WATER SYSTEM (LA1015023) is drawn from EPA SDWIS. Nearby county systems in this extract include BARKSDALE AFB WATER SYSTEM; VILLAGE WATER SYSTEM; TOWN OF BENTON WATER SYSTEM; CYPRESS BLACK BAYOU WATER SYSTEM. Health-based rows (22 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.