LOS ANGELES CWWD 40, REG. 39-ROCK CREEK
Alhambra, CA · 994 served
LOS ANGELES CWWD 40, REG. 39-ROCK CREEK serves 994 people in Alhambra, CA. It has 0 health-based violations in the last 5 years. TapGraded gives this system an A.
Score breakdown
Health-based violations (5y)
0
Monitoring violations (5y)
0
Currently unaddressed
0
Overall score
100/100
Violation history (last 5 years)
No violations on record.
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Lead (Lead and Copper Rule)
EPA's current lead action level is 15 ppb (dropping to 10 ppb in 2027 under the Lead and Copper Rule Improvements).
PFAS (UCMR5 occurrence data)
This system was not required to sample under UCMR5 (systems serving fewer than 3,300 people are mostly exempt).
System details
- System type
- Community water system
- Water source
- Surface water purchased from another system
- Ownership
- Local government
- Service connections
- 368
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Is Alhambra, CA tap water safe to drink?
LOS ANGELES CWWD 40, REG. 39-ROCK CREEK has 0 health-based violations in the last 5 years. TapGraded gives this system an A.
Does LOS ANGELES CWWD 40, REG. 39-ROCK CREEK have lead in its water?
The most recent 90th-percentile lead sample is 0 ppb, versus the EPA action level of 15 ppb.
Has PFAS been detected in LOS ANGELES CWWD 40, REG. 39-ROCK CREEK's water?
This system was not required to sample under UCMR5 (systems serving fewer than 3,300 people are mostly exempt).
Source: EPA SDWIS/ECHO · Data as of 2026Q2