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Tap water quality report

City of San Benito

EPA monitoring tested this supplier for 109 contaminants and detected 34. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

109
contaminants tested
34
detected
24,250
people served
32
health-based violations
Water source
Surface water
Ownership
Local government
Counties served
Cameron

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.

32
health-based violations
65
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2016-10-01 → 2016-10-31
TT Health-based Resolved 2016-10-01 → 2016-10-31
TT Health-based Resolved 2016-10-01 → 2016-10-31
TT Health-based Resolved 2016-10-01 → 2016-10-31
MCL Health-based Resolved 2015-10-01 → 2015-12-31
MCL Health-based Resolved 2015-10-01 → 2015-12-31
MCL Health-based Resolved 2015-10-01 → 2015-12-31
MCL Health-based Resolved 2015-10-01 → 2015-12-31
MCL Health-based Resolved 2015-07-01 → 2015-09-30
MCL Health-based Resolved 2015-07-01 → 2015-09-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfpea 0.0080 µg/L 6/7 2025
Pfba 0.0096 µg/L 5/7 2025
Pfhxa 0.0086 µg/L 5/7 2025
PFHXS 0.0049 µg/L 5/7 2025
PFOS 0.0048 µg/L 3/7 2025
Pfhpa 0.0030 µg/L 2/7 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
Chlorite
625 µg/L 63%
of the EPA limit 1000 µg/L
worst single sample: 980 µg/L
211/259 SYR4 2013–2019
Bromodichloromethane
16.79 µg/L
No EPA limit set
worst single sample: 33 µg/L
99/100 SYR4 2012–2019
Bromoform
42.35 µg/L
No EPA limit set
worst single sample: 60.4 µg/L
99/100 SYR4 2012–2019
Chloroform
8.4 µg/L
No EPA limit set
worst single sample: 18 µg/L
99/100 SYR4 2012–2019
Dibromochloromethane
31.19 µg/L
No EPA limit set
worst single sample: 47 µg/L
99/100 SYR4 2012–2019
Copper
142.5 µg/L 11%
of the EPA limit 1300 µg/L
worst single sample: 381 µg/L
96/96 SYR4 2013–2019
Dibromoacetic Acid
17.12 µg/L
No EPA limit set
worst single sample: 22.6 µg/L
90/90 SYR4 2013–2019
TTHM
91.3 µg/L 114%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 125 µg/L
90/90 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
32.04 µg/L 53%
of the EPA limit 60 µg/L
worst single sample: 40.9 µg/L
90/90 SYR4 2013–2019
Dichloroacetic Acid
11.4 µg/L
No EPA limit set
worst single sample: 12.6 µg/L
87/90 SYR4 2013–2019
Trichloroacetic Acid
3.79 µg/L
No EPA limit set
worst single sample: 5.5 µg/L
83/90 SYR4 2013–2019
Nitrate
490 µg/L 4.9%
of the EPA limit 10000 µg/L
worst single sample: 520 µg/L
26/26 SYR4 2012–2019
Monobromoacetic Acid
8.06 µg/L
No EPA limit set
worst single sample: 9.1 µg/L
14/90 SYR4 2013–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
13/13 LCR 2023
Fluoride
475 µg/L 12%
of the EPA limit 4000 µg/L
worst single sample: 500 µg/L
11/11 SYR4 2012–2019
Lead
4.637 µg/L 31%
of the EPA limit 15 µg/L
worst single sample: 4.7 µg/L
10/96 SYR4 2013–2019
Barium
159.05 µg/L 8%
of the EPA limit 2000 µg/L
worst single sample: 165 µg/L
8/8 SYR4 2013–2019
Lithium
49.3 µg/L
No EPA limit set
8/8 UCMR-5 2025
Selenium
4.95 µg/L 9.9%
of the EPA limit 50 µg/L
worst single sample: 5.1 µg/L
7/8 SYR4 2013–2019
Cyanide
120 µg/L 60%
of the EPA limit 200 µg/L
worst single sample: 140 µg/L
6/6 SYR4 2014–2019
Di(2-ethylhexyl) Phthalate
1.653 µg/L 28%
of the EPA limit 6 µg/L
worst single sample: 1.68 µg/L
4/16 SYR4 2012–2019
Arsenic
2.1 µg/L 21%
of the EPA limit 10 µg/L
2/8 SYR4 2013–2019
Atrazine
0.1475 µg/L 4.9%
of the EPA limit 3 µg/L
worst single sample: 0.1500 µg/L
2/16 SYR4 2012–2019
Monochloroacetic Acid
9.315 µg/L
No EPA limit set
worst single sample: 9.4 µg/L
2/90 SYR4 2013–2019
Combined Radium (-226 And -228)
2.3 pCi/L 46%
of the EPA limit 5 pCi/L
1/1 SYR4 2012
Dichloromethane
1.2 µg/L 24%
of the EPA limit 5 µg/L
1/10 SYR4 2012–2019
Di(2-ethylhexyl) Adipate
1.78 µg/L 0.4%
of the EPA limit 400 µg/L
1/16 SYR4 2012–2019
Gross Beta Particle Activity
7.3 pCi/L
No EPA limit set
1/2 SYR4 2012–2017
75 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, TotalAsbestosBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDalaponDinosebEthylene DibromideEndrinEthylbenzeneGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPFBSPfdaPfdoaPfeesaPfhpsPfmbaPfmpaPFNAPFOAPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
GUERRA, RICARDO
Phone
956-361-3800
Email
[email protected]

Frequently asked questions about City of San Benito

Is City of San Benito tap water safe to drink?

EPA monitoring detected 34 contaminants in City of San Benito'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 San Benito's water?

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

How many people does City of San Benito serve?

City of San Benito reports serving 24,250 people in Texas, per its EPA record.

Has City of San Benito had any water quality violations?

The EPA has 65 violations on file for City of San Benito, of which 32 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.