Alhambra, CA water quality
Alhambra, CA is served by 11 public water systems, serving 361,025 people combined. Across those systems, we count 0 health-based violations in the last 5 years. The worst Tap Grade among them is A.
Water systems serving Alhambra
LOS ANGELES CWWD 40 REG 4 & 34 LANCASTER
ALHAMBRA, CA · 208,129 served
CITY OF ALHAMBRA
ALHAMBRA, CA · 79,776 served
LOS ANGELES CWWD 29 & 80-MALIBU
ALHAMBRA, CA · 32,348 served
LOS ANGELES CWWD 40, REG. 38-LAKE LA
ALHAMBRA, CA · 12,568 served
LOS ANGELES CWWD 40, R 24,27,33-PEARBLSM
ALHAMBRA, CA · 11,509 served
LOS ANGELES CWWD 36-VAL VERDE
ALHAMBRA, CA · 6,376 served
LOS ANGELES CWWD 37-ACTON
ALHAMBRA, CA · 4,805 served
RANCHO LOS AMIGOS HOSPITAL
ALHAMBRA, CA · 3,200 served
LOS ANGELES CWWD 40, REG. 39-ROCK CREEK
ALHAMBRA, CA · 994 served
LOS ANGELES CWWD 21-KAGEL CANYON
ALHAMBRA, CA · 708 served
LOS ANGELES CWWD 40, REG. 35-N.E. L.A.
ALHAMBRA, CA · 612 served
Get alerted when Alhambra's water gets a violation
We'll only email you about this water system. Unsubscribe anytime.
Worried about what's in your tap?
See which water filters are certified to remove the contaminants found in your area.
Find a filter that matches your waterFrequently asked questions
Is Alhambra, CA tap water safe to drink?
11 public water systems serve Alhambra, CA, with 0 health-based violations in the last 5 years across them. The worst Tap Grade among them is A.
Does Alhambra's water have lead in it?
The most recent 90th-percentile lead sample is 1.8 ppb, versus the EPA action level of 15 ppb.
Has PFAS been detected in Alhambra's water?
Yes — at least one water system serving Alhambra has detected PFAS under UCMR5.
Other cities in California
See all of California →Source: EPA SDWIS/ECHO · Data as of 2026Q2