Public water system · TX2140004
ActiveUnion WSC
Community water system in Starr County, Texas, drawing primarily on surface water.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
5,793
Service connections
2,009
Primary source
SW
Surface water
System type
CWS
Community water system
System record
Violations & enforcement
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-04-02 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-12-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2025-12-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Carbon, totalcode 2920 | No | Resolved |
| 2025-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2025-05-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Unaddressed |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Unaddressed |
| 2016-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2016-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2014-11-10 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2014-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
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 WSC: frequently asked questions
Is Union WSC's water safe to drink?
Union WSC is an active community water system regulated under the Safe Drinking Water Act, overseen by the TX state drinking water program. EPA's SDWA data records violations for this system — the most recent are listed on this page, including health-based violations; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.
Who runs Union WSC?
Union WSC (PWSID TX2140004) is a local government-owned community water system, regulated by the TX state drinking water program.
How many people does Union WSC serve?
Union WSC reports serving 5,793 people through 2,009 service connections in Starr County, Texas.
Where does Union WSC get its water?
EPA SDWIS lists this system's primary water source as surface water.
Other water systems in Starr County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Roma | Starr | 19,464 | Community | Surface water |
| City of Rio Grande City | Starr | 18,912 | Community | Surface water |
| City of La Grulla | Starr | 9,500 | Community | Surface water |
| Rio WSC | Starr | 6,939 | Community | Surface water |
| Falcon Rural WSC | Starr | 3,600 | Community | Surface water |
| El Tanque WSC | Starr | 3,000 | Community | Purchased surface water |
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