Public water system record
Town of Grand Coteau Water System
Serves Grand Coteau, St. Landry Parish, LA · 1,650 people served
Federal records show 14 health-based violations and 12 monitoring/reporting issues for Town of Grand Coteau Water System in the last ten years, including an unresolved Groundwater Rule violation.
System profile
- Health-based violations, last 10 years
- 14
- Resolved
- 4
- Unresolved
- 10
- Any acute record
- No
- Monitoring issues, last 10 years
- 12
Key facts
- Town of Grand Coteau Water System draws water from 2 wells.
- Most recent formal enforcement: compliance order (no penalty) by Louisiana, November 2024.
- Record on file since 1994, with 7 health-based violations before October 19, 2016.
Check whether Town of Grand Coteau 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 | Mar 3, 2025 |
Active
Enforcement action in place
|
No |
|
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
|
350 | Oct 17, 2024 | Active | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jul 12, 2022 | Active | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jul 12, 2022 | Active | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jul 12, 2022 | Active | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jul 12, 2022 |
Active
Enforcement action in place
|
No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jul 12, 2022 | Active | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jul 12, 2022 |
Active
Enforcement action in place
|
No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jul 12, 2022 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jul 12, 2022 |
Active
Enforcement action in place
|
No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jun 15, 2020 |
Active
Enforcement action in place
|
No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jun 15, 2020 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Dec 31, 2018 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Dec 31, 2018 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Active |
|
Lead and Copper Rule
Monitoring and reporting
|
Sep 4, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2023 | Resolved |
|
Public Notice
OTHER
|
Aug 17, 2022 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2021 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Apr 17, 2021 | Resolved |
|
Public Notice
OTHER
|
Jul 24, 2020 |
Active
Enforcement action in place
|
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2018 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2017 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2016 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2016 | Resolved |
Full record since 1994
EPA's records for Town of Grand Coteau Water System go back to 1994. Before October 19, 2016 they list 7 health-based violations (2 resolved, 5 archived by EPA without a recorded fix) and 16 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 4 | 1 |
| 2000s | 1 | 6 |
| 2010 to October 18, 2016 | 2 | 9 |
| October 19, 2016 to 2019 | 2 | 2 |
| 2020s | 12 | 8 |
Most recent health-based violation before October 19, 2016: Total Coliform, began August 2012, Resolved.
Show all 7 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2012 | Resolved |
|
Groundwater Rule
Treatment technique failure
|
Dec 19, 2011 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2000 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 1998 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 1998 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 1995 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 1994 | Archived |
Enforcement actions
Louisiana regulators took 2 formal enforcement actions against Town of Grand Coteau Water System between 2013 and 2024. The most recent was a compliance order (no penalty) in November 2024.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Nov 21, 2024 | Louisiana | Compliance order (no penalty) | 9 violations (7 health-based): Groundwater Rule, Public Notice |
| Jan 16, 2013 | Louisiana | Compliance order (no penalty) | 6 violations (1 health-based): Total Coliform, Public Notice |
What the violations mean
Groundwater Rule
13 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.
Where the water comes from
Town of Grand Coteau Water System draws water from 2 wells. It also has an emergency connection to Town of Sunset Water System. 1 other public water system has an emergency connection to Town of Grand Coteau Water System.
Emergency or part-time connections to
- Town of Sunset Water System Sunset, LA
Annual water quality report
Town of Grand Coteau 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