Is Jbsa Sam Houston Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Federal government
Counties served: Bexar

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.

health-based violations

206

violations on file

still open

Violation	Type	Status	Period
TT	Health-based	Resolved	2023-01-28
TT	Health-based	Resolved	2023-01-28
TT	Health-based	Resolved	2023-01-28
MCL	Health-based	Resolved	2006-10-01 → 2006-10-31
MCL	Health-based	Resolved	2006-10-01 → 2006-10-31
MCL	Health-based	Resolved	2006-10-01 → 2006-10-31
MCL	Health-based	Resolved	2006-10-01 → 2006-10-31
MCL	Health-based	Resolved	2006-10-01 → 2006-10-31
MCL	Health-based	Resolved	2006-04-01 → 2006-04-30
MCL	Health-based	Resolved	2006-04-01 → 2006-04-30

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Copper	213 µg/L 16% of the EPA limit 1300 µg/L worst single sample: 21000 µg/L	381/383	SYR4	2012–2019
Lead	59.5 µg/L 397% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 1300 µg/L	190/382	SYR4	2012–2019
Chlorite	939 µg/L 94% of the EPA limit 1000 µg/L worst single sample: 1220 µg/L	135/135	SYR4	2016–2019
Dibromochloromethane	3.52 µg/L No EPA limit set worst single sample: 4.1 µg/L	45/119	SYR4	2012–2019
TTHM	8.96 µg/L 11% of the EPA limit 80 µg/L worst single sample: 18.5 µg/L	45/103	SYR4	2012–2019
Nitrate	2159 µg/L 22% of the EPA limit 10000 µg/L worst single sample: 2210 µg/L	38/38	SYR4	2012–2019
Bromoform	3.15 µg/L No EPA limit set worst single sample: 3.6 µg/L	31/119	SYR4	2012–2019
Lead	0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L	16/16	LCR	2025
Total Haloacetic Acids (HAA5)	2.025 µg/L 3.4% of the EPA limit 60 µg/L worst single sample: 2.1 µg/L	16/104	SYR4	2012–2019
Bromodichloromethane	3.69 µg/L No EPA limit set worst single sample: 5.9 µg/L	14/119	SYR4	2012–2019
Dibromoacetic Acid	1.675 µg/L No EPA limit set worst single sample: 2 µg/L	14/104	SYR4	2012–2019
Barium	108.34 µg/L 5.4% of the EPA limit 2000 µg/L worst single sample: 115 µg/L	5/5	SYR4	2014–2019
Fluoride	1356 µg/L 34% of the EPA limit 4000 µg/L worst single sample: 1630 µg/L	5/5	SYR4	2014–2019
Nitrate-Nitrite	2203 µg/L 22% of the EPA limit 10000 µg/L worst single sample: 2210 µg/L	3/3	SYR4	2012–2015
Chloroform	7.41 µg/L No EPA limit set worst single sample: 7.7 µg/L	2/119	SYR4	2012–2019
Monochloroacetic Acid	2.095 µg/L No EPA limit set worst single sample: 2.1 µg/L	2/104	SYR4	2012–2019
Arsenic	2.1 µg/L 21% of the EPA limit 10 µg/L	1/5	SYR4	2014–2019
Gross Alpha, Excl. Radon And U	3.5 pCi/L 23% of the EPA limit 15 pCi/L	1/4	SYR4	2016–2019
Selenium	4.3 µg/L 8.6% of the EPA limit 50 µg/L	1/5	SYR4	2014–2019
Lithium	9.5 µg/L No EPA limit set	1/6	UCMR-5	2023

89 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, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: COLUNGA, JULIO
Phone: 210-247-8554
Email: [email protected]

Frequently asked questions about Jbsa Sam Houston

Is Jbsa Sam Houston tap water safe to drink?

EPA monitoring detected 20 contaminants in Jbsa Sam Houston'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 Jbsa Sam Houston's water?

EPA monitoring detected Copper, Lead, Chlorite, Dibromochloromethane, TTHM, and others. The full list with the level and data source for each is above.

How many people does Jbsa Sam Houston serve?

Jbsa Sam Houston reports serving 37,563 people in Texas, per its EPA record.

Has Jbsa Sam Houston had any water quality violations?

The EPA has 206 violations on file for Jbsa Sam Houston, of which 19 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.