Is City of Kirby Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Local 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

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Archived	1993-07-01 → 1993-07-31
RPT	Monitoring	Resolved	2025-07-02
Other	Monitoring	Resolved	2024-06-01
Other	Monitoring	Resolved	2024-06-01
MR	Monitoring	Resolved	2024-04-01 → 2024-06-30
MR	Monitoring	Resolved	2024-04-01 → 2024-06-30
MR	Monitoring	Resolved	2024-04-01 → 2024-06-30
MR	Monitoring	Resolved	2024-04-01 → 2024-06-30
MR	Monitoring	Resolved	2024-01-01 → 2024-03-31
MR	Monitoring	Resolved	2024-01-01 → 2024-03-31

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	121.85 µg/L 9.4% of the EPA limit 1300 µg/L worst single sample: 177 µg/L	64/64	SYR4	2013–2019
Nitrate	1964.5 µg/L 20% of the EPA limit 10000 µg/L worst single sample: 1970 µg/L	32/32	SYR4	2012–2019
Lead	2.2 µg/L 15% of the EPA limit 15 µg/L worst single sample: 4 µg/L	21/64	SYR4	2013–2019
Lead	0.0020 mg/L 13% of the EPA limit 0.0150 mg/L	14/14	LCR	2023
Bromoform	6.255 µg/L No EPA limit set worst single sample: 9 µg/L	10/21	SYR4	2012–2019
Nitrate-Nitrite	1942 µg/L 19% of the EPA limit 10000 µg/L worst single sample: 1970 µg/L	8/8	SYR4	2012–2019
Dibromochloromethane	14.54 µg/L No EPA limit set worst single sample: 20 µg/L	7/21	SYR4	2012–2019
Barium	124 µg/L 6.2% of the EPA limit 2000 µg/L	6/6	SYR4	2016–2019
Fluoride	549.5 µg/L 14% of the EPA limit 4000 µg/L worst single sample: 560 µg/L	4/4	SYR4	2014–2017
TTHM	3.525 µg/L 4.4% of the EPA limit 80 µg/L worst single sample: 3.9 µg/L	4/8	SYR4	2013–2019
Xylenes, Total	106.41 µg/L 1.1% of the EPA limit 10000 µg/L worst single sample: 118 µg/L	3/13	SYR4	2012–2019
Lithium	15.5 µg/L No EPA limit set	3/4	UCMR-5	2025
Bromodichloromethane	14.3 µg/L No EPA limit set worst single sample: 15 µg/L	2/21	SYR4	2012–2019
Combined Radium (-226 And -228)	1.5 pCi/L 30% of the EPA limit 5 pCi/L	2/2	SYR4	2016
Ethylbenzene	17.125 µg/L 2.4% of the EPA limit 700 µg/L worst single sample: 18 µg/L	2/13	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	3.11 µg/L 5.2% of the EPA limit 60 µg/L worst single sample: 3.2 µg/L	2/8	SYR4	2013–2019
Chloroform	2 µg/L No EPA limit set	1/21	SYR4	2012–2019
Dibromoacetic Acid	1.4 µg/L No EPA limit set	1/8	SYR4	2013–2019
Monochloroacetic Acid	3.2 µg/L No EPA limit set	1/8	SYR4	2013–2019
Thallium, Total	0.4100 µg/L 21% of the EPA limit 2 µg/L	1/6	SYR4	2016–2019
Toluene	0.5000 µg/L 0.1% of the EPA limit 1000 µg/L	1/13	SYR4	2012–2019

88 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, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebEthylene DibromideEndrinGross Alpha, Excl. Radon And UGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneToxapheneTrichloroacetic AcidTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: GRIDER, JANESHIA
Phone: 210-661-3198
Email: [email protected]

Frequently asked questions about City of Kirby

Is City of Kirby tap water safe to drink?

EPA monitoring detected 21 contaminants in City of Kirby'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 Kirby's water?

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

How many people does City of Kirby serve?

City of Kirby reports serving 8,142 people in Texas, per its EPA record.

Has City of Kirby had any water quality violations?

The EPA has 32 violations on file for City of Kirby, of which 1 is 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.