Is City of Alhambra Tap Water Safe? Quality Report

Water source: SWP
Ownership: Local government
Counties served: Los Angeles

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	Resolved	2009-11-01 → 2009-11-30
MCL	Health-based	Resolved	2009-11-01 → 2009-11-30
MCL	Health-based	Resolved	1998-08-01 → 1998-09-30
MCL	Health-based	Resolved	1998-08-01 → 1998-09-30

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
Nitrate	12000 µg/L 120% of the EPA limit, at the 95th percentile of samples — 10000 µg/L worst single sample: 15142 µg/L	5760/9418	SYR4	2012–2019
cis-1,2-Dichloroethylene	26 µg/L 37% of the EPA limit 70 µg/L worst single sample: 50 µg/L	1395/2580	SYR4	2012–2019
Trichloroethylene	22 µg/L 440% of the EPA limit, at the 95th percentile of samples — 5 µg/L worst single sample: 31 µg/L	807/3337	SYR4	2012–2019
Tetrachloroethylene	3.135 µg/L 63% of the EPA limit 5 µg/L worst single sample: 4.7 µg/L	334/2738	SYR4	2012–2019
TTHM	64.25 µg/L 80% of the EPA limit 80 µg/L worst single sample: 74 µg/L	256/266	SYR4	2012–2019
Bromodichloromethane	19.3 µg/L No EPA limit set worst single sample: 23 µg/L	255/266	SYR4	2012–2019
Chloroform	24.3 µg/L No EPA limit set worst single sample: 28 µg/L	255/266	SYR4	2012–2019
Dibromochloromethane	20.3 µg/L No EPA limit set worst single sample: 25 µg/L	255/266	SYR4	2012–2019
Bromoform	6.94 µg/L No EPA limit set worst single sample: 11 µg/L	253/266	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	23 µg/L 38% of the EPA limit 60 µg/L worst single sample: 27 µg/L	252/256	SYR4	2012–2019
Dichloroacetic Acid	12 µg/L No EPA limit set worst single sample: 15 µg/L	251/256	SYR4	2012–2019
Dibromoacetic Acid	5.395 µg/L No EPA limit set worst single sample: 6.6 µg/L	242/256	SYR4	2012–2019
Fluoride	880 µg/L 22% of the EPA limit 4000 µg/L worst single sample: 980 µg/L	209/209	SYR4	2012–2019
Trichloroacetic Acid	7.44 µg/L No EPA limit set worst single sample: 9.7 µg/L	197/256	SYR4	2012–2019
trans-1,2-Dichloroethylene	0.7800 µg/L 0.8% of the EPA limit 100 µg/L worst single sample: 0.8300 µg/L	58/2455	SYR4	2012–2019
1,1-Dichloroethylene	0.7160 µg/L 10% of the EPA limit 7 µg/L worst single sample: 0.7700 µg/L	38/2452	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	28/28	LCR	2024
Nitrate-Nitrite	12200 µg/L 122% of the EPA limit, at the 95th percentile of samples — 10000 µg/L worst single sample: 13000 µg/L	17/17	SYR4	2016–2019
Combined Uranium	10.9664 µg/L 37% of the EPA limit 30 µg/L worst single sample: 11.771 µg/L	10/10	SYR4	2012–2018
Lithium	58 µg/L No EPA limit set	3/7	UCMR-5	2024
Carbon Tetrachloride	0.5200 µg/L 10% of the EPA limit 5 µg/L	1/97	SYR4	2012–2019

60 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicBariumBenzeneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumChromiumDichloromethaneDi(2-ethylhexyl) PhthalateEthylbenzeneHfpo-DaLeadMercuryMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaSeleniumStyreneThallium, TotalTolueneVinyl ChlorideXylenes, TotalO-DichlorobenzeneP-Dichlorobenzene

Utility contact

Contact: AHLEN, DENNIS
Phone: 626-570-3278
Email: [email protected]

Frequently asked questions about City of Alhambra

Is City of Alhambra tap water safe to drink?

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

EPA monitoring detected Nitrate, cis-1,2-Dichloroethylene, Trichloroethylene, Tetrachloroethylene, TTHM, and others. The full list with the level and data source for each is above.

How many people does City of Alhambra serve?

City of Alhambra reports serving 79,776 people in California, per its EPA record.

Has City of Alhambra had any water quality violations?

The EPA has 4 violations on file for City of Alhambra, of which 4 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.