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Tap water quality report

Webb County Water Utilities

EPA monitoring tested this supplier for 107 contaminants and detected 25. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

107
contaminants tested
25
detected
8,358
people served
363
health-based violations
Texas rankingsLead in TexasPFAS in Texas
Water source
Surface water
Ownership
Local government
Counties served
Webb

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

363
health-based violations
754
violations on file
8
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-07-01 → 2025-09-30
MCL Health-based Archived 2025-07-01 → 2025-09-30
MCL Health-based Archived 2025-07-01 → 2025-09-30
MCL Health-based Archived 2025-04-01 → 2025-06-30
MCL Health-based Archived 2025-04-01 → 2025-06-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0051 µg/L 2/4 2025
Pfpea 0.0034 µg/L 2/4 2025

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
346.85 µg/L 27%
of the EPA limit 1300 µg/L
worst single sample: 662 µg/L
84/84 SYR4 2013–2019
Bromodichloromethane
38 µg/L
No EPA limit set
worst single sample: 44.6 µg/L
65/65 SYR4 2012–2019
Bromoform
7.1 µg/L
No EPA limit set
worst single sample: 8.5 µg/L
65/65 SYR4 2012–2019
Chloroform
36.64 µg/L
No EPA limit set
worst single sample: 46.7 µg/L
65/65 SYR4 2012–2019
Dibromochloromethane
28.86 µg/L
No EPA limit set
worst single sample: 30.9 µg/L
65/65 SYR4 2012–2019
Dichloroacetic Acid
31.42 µg/L
No EPA limit set
worst single sample: 33.7 µg/L
57/57 SYR4 2012–2019
TTHM
106.6 µg/L 133%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 126 µg/L
57/57 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
56.76 µg/L 95%
of the EPA limit 60 µg/L
worst single sample: 63.4 µg/L
57/57 SYR4 2012–2019
Trichloroacetic Acid
17.82 µg/L
No EPA limit set
worst single sample: 22.8 µg/L
57/57 SYR4 2012–2019
Dibromoacetic Acid
8.625 µg/L
No EPA limit set
worst single sample: 10.8 µg/L
56/57 SYR4 2012–2019
Monobromoacetic Acid
2.425 µg/L
No EPA limit set
worst single sample: 2.5 µg/L
16/57 SYR4 2012–2019
Nitrate
740 µg/L 7.4%
of the EPA limit 10000 µg/L
 16/18 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 11/11 LCR 2023
Lead
6.14 µg/L 41%
of the EPA limit 15 µg/L
worst single sample: 8.1 µg/L
9/85 SYR4 2013–2019
Fluoride
651 µg/L 16%
of the EPA limit 4000 µg/L
worst single sample: 700 µg/L
8/8 SYR4 2012–2019
Barium
86.75 µg/L 4.3%
of the EPA limit 2000 µg/L
worst single sample: 88.4 µg/L
7/7 SYR4 2013–2019
Monochloroacetic Acid
7.75 µg/L
No EPA limit set
worst single sample: 8.2 µg/L
4/57 SYR4 2012–2019
Lithium
40.7 µg/L
No EPA limit set
 4/4 UCMR-5 2025
Cyanide
59.25 µg/L 30%
of the EPA limit 200 µg/L
worst single sample: 60 µg/L
2/8 SYR4 2012–2019
Dalapon
1.195 µg/L 0.6%
of the EPA limit 200 µg/L
worst single sample: 1.2 µg/L
2/57 SYR4 2012–2019
Di(2-ethylhexyl) Phthalate
1.4 µg/L 23%
of the EPA limit 6 µg/L
 1/8 SYR4 2012–2019
Gross Beta Particle Activity
4.9 pCi/L
No EPA limit set
 1/1 SYR4 2016
Selenium
3.6 µg/L 7.2%
of the EPA limit 50 µg/L
 1/7 SYR4 2013–2019
82 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDi(2-ethylhexyl) AdipateDinosebEthylene DibromideEndrinEthylbenzeneGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
TIJERINA, TANO, E
Phone
956-523-4600
Email
[email protected]

Frequently asked questions about Webb County Water Utilities

Is Webb County Water Utilities tap water safe to drink?

EPA monitoring detected 25 contaminants in Webb County Water Utilities's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Webb County Water Utilities's water?

EPA monitoring detected Copper, Bromodichloromethane, Bromoform, Chloroform, Dibromochloromethane, and others. The full list with the level and data source for each is above.

How many people does Webb County Water Utilities serve?

Webb County Water Utilities reports serving 8,358 people in Texas, per its EPA record.

Has Webb County Water Utilities had any water quality violations?

The EPA has 754 violations on file for Webb County Water Utilities, of which 363 are health-based (a contaminant limit or required treatment was breached) and 8 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.