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Community Water System · PWS TX1080213

City of la Joya

La Joya, Texas 78560-0180 - drinking water served from surface water sources to 3,033 people, tracked in EPA SDWIS and UCMR5.

3,033
People served
424
EPA violations
130
Health-based
Untested
UCMR5 result

The verdict

EPA records 424 drinking-water violations at City of la Joya, 31% of them health-based - above the Texas per-system average.

424
Total EPA violations on record
31%
Health-based (MCL / treatment failure)
3,033
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: City of la Joya

City of la Joya is a local-owned community water system that delivers drinking water to 3,033 residents in La Joya, Texas (Hidalgo County) through 1,106 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 424 total violations for this system , of which 130 (31%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 164 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is TTHM, recorded in 113 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Texas, EPA tracks 7,351 public water systems serving 33,253,313 people, with 746,210 cumulative violations and 162,945 health-based violations on record. About 90% of systems in the state carry at least one violation, and state-wide the average per system is 101.5 violations. Statewide, 1,068 of 1,147 UCMR5-tested systems have reported PFAS detections (93.1%).

City of la Joya's 424 violations sit above the Texas average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
3,033
Total Violations
424
Health-Based Violations
130
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
1,106
County
Hidalgo
School/Daycare
No
MCL Violations
116
Monitoring Violations
164
Treatment Tech Violations
14

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 113 2022
Public Notice Other 92 2025
Lead and Copper Rule MR 57 2024
TTHM MR 38 2024
Interim Enhanced Surface Water Treatment Rule MR 32 2022
Consumer Confidence Rule Other 23 2024
CARBON, TOTAL MR 15 2022
Revised Total Coliform Rule TT 12 2023
Surface Water Treatment Rule MR 8 2021
Coliform (TCR) MR 6 2014
Revised Total Coliform Rule MON 4 2018
Total Haloacetic Acids (HAA5) MR 4 2024
Total Haloacetic Acids (HAA5) MCL 3 2012
LEAD AND COPPER RULE REVISIONS RPT 2 2024
LEAD AND COPPER RULE REVISIONS TT 2 2024
Coliform (TCR) Other 1 1992

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for City of la Joya.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID TX1080213 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Texas Drinking Water Authority

Texas Commission on Environmental Quality (TCEQ) - Drinking Water Watch is the primacy agency that licenses and inspects City of la Joya under EPA-delegated authority.

Open TX regulator portal

Source: Texas Commission on Environmental Quality (TCEQ) - Drinking Water Watch

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2025 Public Notice Other 92 SDWIS / TX1080213 / 7500
2024 Lead and Copper Rule MR 57 SDWIS / TX1080213 / 5000
2024 TTHM MR 38 SDWIS / TX1080213 / 2950
2024 Consumer Confidence Rule Other 23 SDWIS / TX1080213 / 7000
2024 Total Haloacetic Acids (HAA5) MR 4 SDWIS / TX1080213 / 2456
2024 LEAD AND COPPER RULE REVISIONS RPT 2 SDWIS / TX1080213 / 5200
2024 LEAD AND COPPER RULE REVISIONS TT 2 SDWIS / TX1080213 / 5200
2023 Revised Total Coliform Rule TT 12 SDWIS / TX1080213 / 8000
2022 TTHM MCL 113 SDWIS / TX1080213 / 2950
2022 Interim Enhanced Surface Water Treatment Rule MR 32 SDWIS / TX1080213 / 0300
2022 CARBON, TOTAL MR 15 SDWIS / TX1080213 / 2920
2021 Surface Water Treatment Rule MR 8 SDWIS / TX1080213 / 0200
2018 Revised Total Coliform Rule MON 4 SDWIS / TX1080213 / 8000
2014 Coliform (TCR) MR 6 SDWIS / TX1080213 / 3100
2012 Total Haloacetic Acids (HAA5) MCL 3 SDWIS / TX1080213 / 2456

How City of la Joya Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric City of la Joya Texas avg Federal benchmark
Total violations 424 101.5 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 130 22.2 Indicates a contaminant exceeded a federal MCL
PFAS detection None 93.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 3,033 4,524 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 7,351 regulated public water systems in Texas.

Federal MCL reference, Safe Drinking Water Act thresholds
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is City of la Joya water safe to drink?
City of la Joya (PWS ID: TX1080213) has 424 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 3,033 people using Surface Water sources.
How many people does City of la Joya serve?
City of la Joya serves 3,033 people in La Joya, Texas. It is a Local-owned system using Surface Water water sources with 1,106 service connections.
What type of violations does City of la Joya have?
City of la Joya has 424 total violations: 130 health-based violations (MCL exceedances or treatment failures), 164 monitoring/reporting violations, and 14 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in City of la Joya water?
No PFAS testing data is available for City of la Joya under the EPA's UCMR5 monitoring program.
What water source does City of la Joya use?
City of la Joya uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from?
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.
Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.