Public water system · LA1101014
ActiveCity of Berwick
At a glance
City of Berwick (PWSID LA1101014) is an active community water system in St. Mary Parish County, Louisiana. It reports serving 5,024 people through 1,974 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
5,024
Service connections
1,974
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does City of Berwick compare with other water systems in St. Mary Parish County?
By EPA's size categories, City of Berwick is a medium system (3,301 to 10,000 people). St. Mary Parish County has 16 active public water systems. Its population served is about 27% above the county average of 3,945 people per system, and accounts for 8% 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 City of Berwick is about 25% 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 City of Berwick?
EPA lists City of Berwick 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 City of Berwick have drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in October 2024. The violations listed here began between February 2019 and October 2024. By type: 2 monitoring, 1 reporting, 1 required treatment not met and 1 monitoring and reporting. The contaminant or rule involved most often is Lead and Copper Rule Revisions (2 of them). EPA lists 5 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Resolved |
| 2019-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-02-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-02-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
All 5 violations in EPA's records, newest first.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.
City of Berwick: frequently asked questions
Who runs City of Berwick?
City of Berwick (PWSID LA1101014) is a community water system owned by a local government. It is regulated by the LA state drinking water program.
How many people does City of Berwick serve?
City of Berwick reports serving 5,024 people through 1,974 service connections in St. Mary Parish County, Louisiana.
Where does City of Berwick 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 City of Berwick have any drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in October 2024. 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 City of Berwick'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 5 violations for this system; 1 is health-based, and the most recent began in October 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the LA state drinking water program.
Where can I find City of Berwick's water quality report?
As a community water system, City of Berwick 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 |
| St Mary Parish W&S #2 Bayou Vista | St. Mary Parish | 5,379 | 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, “City of Berwick, PWSID LA1101014, Louisiana”, https://aquacensus.com/water-systems/louisiana/city-of-berwick-la1101014 (data as of October 1, 2026).