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Tap water quality report

City of Alhambra

EPA monitoring tested this supplier for 81 contaminants and detected 21. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

81
contaminants tested
21
detected
79,776
people served
4
health-based violations
California rankingsLead in CaliforniaPFAS in California
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.

4
health-based violations
4
violations on file
0
still open
ViolationTypeStatusPeriod
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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
15142 µg/L 151%
of the EPA limit, in the worst sample — 10000 µg/L
 5760/9418 SYR4 2012–2019
cis-1,2-Dichloroethylene
50 µg/L 71%
of the EPA limit 70 µg/L
 1395/2580 SYR4 2012–2019
Trichloroethylene
31 µg/L 620%
of the EPA limit, in the worst sample — 5 µg/L
 807/3337 SYR4 2012–2019
Tetrachloroethylene
4.7 µg/L 94%
of the EPA limit 5 µg/L
 334/2738 SYR4 2012–2019
TTHM
74 µg/L 93%
of the EPA limit 80 µg/L
 256/266 SYR4 2012–2019
Bromodichloromethane
23 µg/L
No EPA limit set
 255/266 SYR4 2012–2019
Chloroform
28 µg/L
No EPA limit set
 255/266 SYR4 2012–2019
Dibromochloromethane
25 µg/L
No EPA limit set
 255/266 SYR4 2012–2019
Bromoform
11 µg/L
No EPA limit set
 253/266 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
27 µg/L 45%
of the EPA limit 60 µg/L
 252/256 SYR4 2012–2019
Dichloroacetic Acid
15 µg/L
No EPA limit set
 251/256 SYR4 2012–2019
Dibromoacetic Acid
6.6 µg/L
No EPA limit set
 242/256 SYR4 2012–2019
Fluoride
980 µg/L 25%
of the EPA limit 4000 µg/L
 209/209 SYR4 2012–2019
Trichloroacetic Acid
9.7 µg/L
No EPA limit set
 197/256 SYR4 2012–2019
trans-1,2-Dichloroethylene
0.8300 µg/L 0.8%
of the EPA limit 100 µg/L
 58/2455 SYR4 2012–2019
1,1-Dichloroethylene
0.7700 µg/L 11%
of the EPA limit 7 µg/L
 38/2452 SYR4 2012–2019
Lead
0.0060 mg/L 40%
of the EPA limit 0.0150 mg/L
 28/28 LCR 2024
Nitrate-Nitrite
13000 µg/L 130%
of the EPA limit, in the worst sample — 10000 µg/L
 17/17 SYR4 2016–2019
Combined Uranium
11.771 µg/L 39%
of the EPA limit 30 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
dahlen@cityofalhambra.org

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.