Public water system record
City of St Martinville Water System
Serves an area of St. Martin Parish, LA that includes St. Martinville · 7,575 people served
Federal records show 7 health-based violations and no monitoring/reporting issues for City of St Martinville Water System in the last ten years, including an unresolved Groundwater Rule violation.
System profile
- Health-based violations, last 10 years
- 7
- Resolved
- 2
- Unresolved
- 5
- Any acute record
- No
- Monitoring issues, last 10 years
- 0
Key facts
- City of St Martinville Water System draws water from 2 wells.
- Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit), 2021.
- Most recent formal enforcement: compliance order (no penalty) by Louisiana, June 2016.
- Record on file since 1997, with 8 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 3,138 unknown out of 3,418 service lines.
Check whether City of St Martinville Water System serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Groundwater Rule
Treatment technique failure
|
140 | Nov 5, 2025 | Active | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Nov 5, 2025 | Active | No |
|
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
|
350 | Oct 17, 2024 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Nov 27, 2023 | Active | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Nov 27, 2023 | Active | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Feb 24, 2023 | Active | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
220 | Apr 1, 2021 | Resolved | No |
Full record since 1997
EPA's records for City of St Martinville Water System go back to 1997. Before October 19, 2016 they list 8 health-based violations (6 resolved, 2 archived by EPA without a recorded fix) and 8 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 0 |
| 2000s | 1 | 1 |
| 2010 to October 18, 2016 | 6 | 7 |
| 2020s | 7 | 0 |
Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began January 2016, Resolved.
Show all 8 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 86 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
Jan 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 89 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
Oct 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 88 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
Jul 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 84 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
Apr 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 81 µg/L, federal limit 80 µg/L (at or just above the limit)
|
Jan 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 81 µg/L, federal limit 80 µg/L (at or just above the limit)
|
Apr 1, 2013 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 2007 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Nov 15, 1997 | Archived |
Enforcement actions
Louisiana regulators took 1 formal enforcement action against City of St Martinville Water System in 2016. The most recent was a compliance order (no penalty) in June 2016.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jun 21, 2016 | Louisiana | Compliance order (no penalty) | 5 violations (5 health-based): Total Trihalomethanes (TTHMs) |
What the violations mean
Groundwater Rule
5 incidentsThe system did not complete a treatment step or action that the Groundwater Rule requires (a treatment technique violation).
The utility had to notify customers about each of these violations.
LEAD AND COPPER RULE REVISIONS
1 incidentThe system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).
The utility had to notify customers about this violation.
Total Trihalomethanes (TTHMs)
1 incidentDisinfection byproduct levels exceeded the federal limit
Long-term TTHM exposure may increase bladder cancer risk
Where the water comes from
City of St Martinville Water System draws water from 2 wells. It also has an interim connection to St Martin Industrial Park Water System. 1 other public water system has an emergency connection to City of St Martinville Water System.
Emergency or part-time connections to
- St Martin Industrial Park Water System St. Martinville, LA
Annual water quality report
City of St Martinville Water System must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Louisiana.
Certified drinking water labs by state EPA guidance for private wells