Public water system record
Berwick Bayou Vista WW Commission
On record as serving St. Mary Parish, LA · Population served not reported
Federal records show 3 health-based violations and no monitoring/reporting issues for Berwick Bayou Vista WW Commission in the last ten years. The most serious issue in this window was a Interim Enhanced Surface Water Treatment Rule violation that EPA lists as archived, not resolved.
System profile
- Health-based violations, last 10 years
- 3
- Resolved
- 1
- Unresolved
- 0
- Archived by EPA
- 2
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 0
Key facts
- Berwick Bayou Vista WW Commission draws water from 1 surface water intake.
- Highest measured level in the last 10 years: Chlorite, 1.13 mg/L, federal limit 1 mg/L (1.1 times the limit), 2018.
- Most recent formal enforcement: compliance order (no penalty) by Louisiana, October 2000.
- Record on file since 1983, with 9 health-based violations before October 19, 2016.
Check whether Berwick Bayou Vista WW Commission 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 |
|---|---|---|---|---|
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Jan 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
Yes |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Jan 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
Yes |
|
Chlorite
Contaminant limit exceeded
Measured 1.13 mg/L, federal limit 1 mg/L (1.1 times the limit)
|
210 | Aug 1, 2018 | Resolved | No |
Full record since 1983
EPA's records for Berwick Bayou Vista WW Commission go back to 1983. Before October 19, 2016 they list 9 health-based violations (2 resolved, 7 archived by EPA without a recorded fix) and 2 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 1 | 0 |
| 1990s | 4 | 1 |
| 2000s | 3 | 1 |
| 2010 to October 18, 2016 | 1 | 0 |
| October 19, 2016 to 2019 | 1 | 0 |
| 2020s | 2 | 0 |
Most recent health-based violation before October 19, 2016: Chlorite, began February 2010, Resolved.
Show all 9 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Chlorite
Contaminant limit exceeded
Measured 1.1 mg/L, federal limit 1 mg/L (1.1 times the limit)
|
Feb 1, 2010 | Resolved |
|
Chlorite
Contaminant limit exceeded
Measured 1.52 mg/L, federal limit 1 mg/L (1.5 times the limit)
|
Oct 1, 2006 | Resolved |
|
Chlorite
Contaminant limit exceeded
|
Jul 1, 2004 | Archived |
|
Chlorite
Contaminant limit exceeded
Measured 1.17 mg/L, federal limit 1 mg/L (1.2 times the limit)
|
Jul 1, 2004 | Archived |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Sep 15, 1998 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Sep 15, 1997 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Jul 15, 1994 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Jun 15, 1994 | Archived |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Oct 1, 1983 | Archived |
Enforcement actions
Louisiana regulators took 3 formal enforcement actions against Berwick Bayou Vista WW Commission between 1999 and 2000. The most recent was a compliance order (no penalty) in October 2000.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Oct 25, 2000 | Louisiana | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
| Mar 11, 1999 | Louisiana | Compliance order (no penalty) | 3 violations (2 health-based): Total Coliform |
| Mar 1, 1999 | Louisiana | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
What the violations mean
Interim Enhanced Surface Water Treatment Rule
2 incidentsThe system did not meet a filtration or treatment requirement for surface water
Inadequate treatment of surface water can let pathogens such as Cryptosporidium and Giardia through
Chlorite
1 incidentTest results for Chlorite were above the federal limit (a maximum contaminant level violation).
The utility had to notify customers about this violation.
Where the water comes from
Berwick Bayou Vista WW Commission draws water from 1 surface water intake. 2 other community water systems buy water from Berwick Bayou Vista WW Commission.
Community systems that buy water from it
- St Mary Parish W&S #2 Bayou Vista Patterson, LA
- Town of Berwick Berwick, LA
Annual water quality report
Berwick Bayou Vista WW Commission 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.
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