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Tap water quality report

City of Laredo

EPA monitoring tested this supplier for 108 contaminants and detected 28. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

108
contaminants tested
28
detected
260,046
people served
65
health-based violations
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.

65
health-based violations
275
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 2026-05-01 → 2026-05-31
MCL Health-based Archived 2026-05-01 → 2026-05-31
MCL Health-based Archived 2026-05-01 → 2026-05-31
MCL Health-based Archived 2026-05-01 → 2026-05-31
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2024-10-17
MCL Health-based Resolved 2024-10-01 → 2024-10-31
MCL Health-based Resolved 2024-10-01 → 2024-10-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0106 µg/L 5/8 2024

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
140 µg/L 11%
of the EPA limit 1300 µg/L
worst single sample: 1670 µg/L
381/381 SYR4 2013–2018
Bromodichloromethane
30.82 µg/L
No EPA limit set
worst single sample: 48.6 µg/L
297/297 SYR4 2012–2019
Chloroform
25.98 µg/L
No EPA limit set
worst single sample: 50.1 µg/L
297/297 SYR4 2012–2019
Dibromochloromethane
32.42 µg/L
No EPA limit set
worst single sample: 46.7 µg/L
297/297 SYR4 2012–2019
Bromoform
11.1 µg/L
No EPA limit set
worst single sample: 17.4 µg/L
294/297 SYR4 2012–2019
Dichloroacetic Acid
19.96 µg/L
No EPA limit set
worst single sample: 43.7 µg/L
269/269 SYR4 2012–2019
TTHM
89.8 µg/L 112%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 147 µg/L
269/269 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
44.2 µg/L 74%
of the EPA limit 60 µg/L
worst single sample: 88.7 µg/L
269/269 SYR4 2012–2019
Trichloroacetic Acid
14.08 µg/L
No EPA limit set
worst single sample: 19.4 µg/L
269/269 SYR4 2012–2019
Dibromoacetic Acid
10.87 µg/L
No EPA limit set
worst single sample: 20.3 µg/L
264/269 SYR4 2012–2019
Lead
1.845 µg/L 12%
of the EPA limit 15 µg/L
worst single sample: 16.1 µg/L
252/381 SYR4 2013–2018
Monobromoacetic Acid
6.36 µg/L
No EPA limit set
worst single sample: 15.2 µg/L
89/269 SYR4 2012–2019
Nitrate
1100 µg/L 11%
of the EPA limit 10000 µg/L
58/58 SYR4 2012–2019
Fluoride
770 µg/L 19%
of the EPA limit 4000 µg/L
28/28 SYR4 2012–2019
Barium
100.23 µg/L 5%
of the EPA limit 2000 µg/L
worst single sample: 106 µg/L
27/27 SYR4 2013–2019
Lead
0.0014 mg/L 9.1%
of the EPA limit 0.0150 mg/L
16/16 LCR 2024
Monochloroacetic Acid
6.255 µg/L
No EPA limit set
worst single sample: 7.1 µg/L
14/269 SYR4 2012–2019
Cyanide
126.5 µg/L 63%
of the EPA limit 200 µg/L
worst single sample: 140 µg/L
10/29 SYR4 2014–2019
Combined Uranium
3.275 µg/L 11%
of the EPA limit 30 µg/L
worst single sample: 3.5 µg/L
10/10 SYR4 2015–2018
Gross Beta Particle Activity
6.32 pCi/L
No EPA limit set
worst single sample: 6.4 pCi/L
9/10 SYR4 2015–2018
Lithium
34.3 µg/L
No EPA limit set
8/8 UCMR-5 2024
Arsenic
3.925 µg/L 39%
of the EPA limit 10 µg/L
worst single sample: 4.1 µg/L
6/27 SYR4 2013–2019
Selenium
4.06 µg/L 8.1%
of the EPA limit 50 µg/L
worst single sample: 4.2 µg/L
5/27 SYR4 2013–2019
Gross Alpha, Excl. Radon And U
2 pCi/L 13%
of the EPA limit 15 pCi/L
3/10 SYR4 2015–2018
Antimony, Total
2.1 µg/L 35%
of the EPA limit 6 µg/L
2/27 SYR4 2013–2019
Atrazine
0.1000 µg/L 3.3%
of the EPA limit 3 µg/L
1/16 SYR4 2012–2019
Dalapon
2.2 µg/L 1.1%
of the EPA limit 200 µg/L
1/263 SYR4 2012–2019
80 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-PF3ONSAdonaAsbestosBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
TREVINO, VICTOR
Phone
956-791-7300

Frequently asked questions about City of Laredo

Is City of Laredo tap water safe to drink?

EPA monitoring detected 28 contaminants in City of Laredo'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 City of Laredo's water?

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

How many people does City of Laredo serve?

City of Laredo reports serving 260,046 people in Texas, per its EPA record.

Has City of Laredo had any water quality violations?

The EPA has 275 violations on file for City of Laredo, of which 65 are health-based (a contaminant limit or required treatment was breached) and 0 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.