Public water system record
Calcasieu Parish WW District No 4
Serves an area of Calcasieu Parish, LA · 5,340 people served
Federal records show 7 health-based violations and 4 monitoring/reporting issues for Calcasieu Parish WW District No 4 in the last ten years, including an unresolved Groundwater Rule violation.
System profile
- Health-based violations, last 10 years
- 7
- Resolved
- 1
- Unresolved
- 6
- Any acute record
- No
- Monitoring issues, last 10 years
- 4
Key facts
- Calcasieu Parish WW District No 4 draws water from 2 wells.
- Most recent formal enforcement: compliance order (no penalty) by EPA, May 2000.
- Record on file since 1994, with 4 health-based violations before October 19, 2016.
Check whether Calcasieu Parish WW District No 4 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 | Oct 28, 2025 | Active | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Oct 28, 2025 | Active | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Oct 28, 2025 | Active | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Oct 28, 2025 | Active | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Oct 28, 2025 | Active | No |
|
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
|
350 | Oct 17, 2024 | Active | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jul 3, 2023 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Public Notice
OTHER
|
Dec 6, 2025 | Active |
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Active |
|
Public Notice
OTHER
|
Aug 11, 2023 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 12, 2019 | Resolved |
Full record since 1994
EPA's records for Calcasieu Parish WW District No 4 go back to 1994. Before October 19, 2016 they list 4 health-based violations (2 resolved, 2 archived by EPA without a recorded fix) and 1 monitoring or reporting violation.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 1 |
| 2000s | 3 | 0 |
| October 19, 2016 to 2019 | 0 | 1 |
| 2020s | 7 | 3 |
Most recent health-based violation before October 19, 2016: Total Coliform, began May 2006, Resolved.
Show all 4 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2006 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Apr 1, 2005 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Nov 1, 2004 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Jul 15, 1994 | Archived |
Enforcement actions
EPA took 1 formal enforcement action against Calcasieu Parish WW District No 4 in 2000. The most recent was a compliance order (no penalty) in May 2000.
| Date | By | Action | Violations covered |
|---|---|---|---|
| May 16, 2000 | EPA | Compliance order (no penalty) | 1 violation: Consumer Confidence Rule |
What the violations mean
Groundwater Rule
6 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
Calcasieu Parish WW District No 4 draws water from 2 wells. It also has an emergency connection to Westlake City of Water System.
Emergency or part-time connections to
- Westlake City of Water System Westlake, LA
Annual water quality report
Calcasieu Parish WW District No 4 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