Public water system · LA1101015
ActiveSt Mary Parish W&S #2 Bayou Vista
At a glance
St Mary Parish W&S #2 Bayou Vista (PWSID LA1101015) is an active community water system in St. Mary Parish County, Louisiana. It reports serving 5,379 people through 1,906 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list one violation for this system; it is not health-based, and the most recent began in December 2017.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
5,379
Service connections
1,906
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does St Mary Parish W&S #2 Bayou Vista compare with other water systems in St. Mary Parish County?
By EPA's size categories, St Mary Parish W&S #2 Bayou Vista is a medium system (3,301 to 10,000 people). St. Mary Parish County has 16 active public water systems, and St Mary Parish W&S #2 Bayou Vista is the 6th-largest of them by population served. Its population served is about 36% above the county average of 3,945 people per system, and accounts for 8.5% of the 63,113 people reported by systems filed under the county. Across Louisiana, the 1,121 active systems average 4,685 people each. Nationally, the average active community water system reports serving 6,703 people, so St Mary Parish W&S #2 Bayou Vista is about 20% below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Louisiana has 815 active community water systems, 73% of the state's 1,121 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 33 Louisiana systems (2.9%) list purchased surface water as their primary source.
Who owns and regulates St Mary Parish W&S #2 Bayou Vista?
EPA lists St Mary Parish W&S #2 Bayou Vista as owned by a local government. The LA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 12 of the 16 active systems in St. Mary Parish County (75%) are also owned by a local government.
Does St Mary Parish W&S #2 Bayou Vista have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in December 2017. By type: 1 monitoring. The contaminant or rule involved is Revised Total Coliform Rule. EPA lists 1 as archived. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2017-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
The one violation in EPA's records.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
St Mary Parish W&S #2 Bayou Vista: frequently asked questions
Who runs St Mary Parish W&S #2 Bayou Vista?
St Mary Parish W&S #2 Bayou Vista (PWSID LA1101015) is a community water system owned by a local government. It is regulated by the LA state drinking water program.
How many people does St Mary Parish W&S #2 Bayou Vista serve?
St Mary Parish W&S #2 Bayou Vista reports serving 5,379 people through 1,906 service connections in St. Mary Parish County, Louisiana.
Where does St Mary Parish W&S #2 Bayou Vista get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does St Mary Parish W&S #2 Bayou Vista have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in December 2017. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is St Mary Parish W&S #2 Bayou Vista's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list one violation for this system; it is not health-based, and the most recent began in December 2017. For current results, consult the system's annual water quality report, EPA ECHO, or the LA state drinking water program.
Where can I find St Mary Parish W&S #2 Bayou Vista's water quality report?
As a community water system, St Mary Parish W&S #2 Bayou Vista must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in St. Mary Parish County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Morgan City Water System | St. Mary Parish | 12,703 | Community | Surface water |
| Water & Sewer Commission 4 of St Mary | St. Mary Parish | 9,709 | Community | Surface water |
| City of Patterson Water System | St. Mary Parish | 8,456 | Community | Surface water |
| City of Franklin Water Supply | St. Mary Parish | 8,325 | Community | Surface water |
| St Mary Water & Sewer Comm #3 | St. Mary Parish | 7,828 | Community | Surface water |
| City of Berwick | St. Mary Parish | 5,024 | Community | Purchased surface water |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “St Mary Parish W&S #2 Bayou Vista, PWSID LA1101015, Louisiana”, https://aquacensus.com/water-systems/louisiana/st-mary-parish-w-s-2-bayou-vista-la1101015 (data as of October 1, 2026).