Public water system · LA1111015
ActiveUnion Parish Waterworks District 1
At a glance
Union Parish Waterworks District 1 (PWSID LA1111015) is an active community water system in Union Parish County, Louisiana. It reports serving 1,626 people through 542 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 7 are health-based, and the most recent began in January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,626
Service connections
542
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Union Parish Waterworks District 1 compare with other water systems in Union Parish County?
By EPA's size categories, Union Parish Waterworks District 1 is a small system (501 to 3,300 people). Union Parish County has 18 active public water systems. Its population served is roughly in line with the county average of 1,767 people per system, and accounts for 5.1% of the 31,812 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 Union Parish Waterworks District 1 is well 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. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 966 Louisiana systems (86%) list groundwater as their primary source.
Who owns and regulates Union Parish Waterworks District 1?
EPA lists Union Parish Waterworks District 1 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. 6 of the 18 active systems in Union Parish County (33%) are also owned by a local government.
Does Union Parish Waterworks District 1 have drinking water violations?
Of the 12 most recent violations in EPA's records, 7 are health-based, and the most recent began in January 2026. The violations listed here began between October 2024 and January 2026. By type: 6 contaminant level above the legal limit, 4 public notice, recordkeeping or other, 1 required treatment not met and 1 reporting. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (6 of them). EPA lists 6 as archived, 4 as unaddressed and 2 as resolved. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement. 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 |
|---|---|---|---|---|
| 2026-01-10 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2026-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2025-10-18 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2025-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2025-07-19 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2025-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2025-04-29 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2025-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2025-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Resolved |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2024-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
The 12 most recent 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.
Union Parish Waterworks District 1: frequently asked questions
Who runs Union Parish Waterworks District 1?
Union Parish Waterworks District 1 (PWSID LA1111015) is a community water system owned by a local government. It is regulated by the LA state drinking water program.
How many people does Union Parish Waterworks District 1 serve?
Union Parish Waterworks District 1 reports serving 1,626 people through 542 service connections in Union Parish County, Louisiana.
Where does Union Parish Waterworks District 1 get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Union Parish Waterworks District 1 have any drinking water violations?
Of the 12 most recent violations in EPA's records, 7 are health-based, and the most recent began in January 2026. 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 Union Parish Waterworks District 1'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. Of the 12 most recent violations in EPA's records, 7 are health-based, and the most recent began in January 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the LA state drinking water program.
Where can I find Union Parish Waterworks District 1's water quality report?
As a community water system, Union Parish Waterworks District 1 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 Union Parish County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Town of Farmerville Water System | Union Parish | 5,352 | Community | Groundwater |
| Darbonne Ws South | Union Parish | 3,261 | Community | Groundwater |
| Darbonne Ws North | Union Parish | 3,186 | Community | Groundwater |
| Holmesville Water System | Union Parish | 2,406 | Community | Groundwater |
| Point Wilhite Ws | Union Parish | 2,292 | Community | Groundwater |
| Town of Bernice Water System | Union Parish | 1,863 | Community | Groundwater |
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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, “Union Parish Waterworks District 1, PWSID LA1111015, Louisiana”, https://aquacensus.com/water-systems/louisiana/union-parish-waterworks-district-1-la1111015 (data as of October 1, 2026).