GREAT OAKS WC INC
San Jose, CA · 110,088 served
GREAT OAKS WC INC serves 110,088 people in San Jose, CA. It has 0 health-based violations in the last 5 years. TapGraded gives this system a B.
Score breakdown
Health-based violations (5y)
0
Monitoring violations (5y)
0
Currently unaddressed
0
Overall score
80/100
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)
System details
- System type
- Community water system
- Water source
- Ground water
- Ownership
- Private
- Service connections
- 21,415
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Is San Jose, CA tap water safe to drink?
GREAT OAKS WC INC has 0 health-based violations in the last 5 years. TapGraded gives this system a B.
Does GREAT OAKS WC INC 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 GREAT OAKS WC INC's water?
Yes — PFAS was detected at or above the EPA MCL for 1 of the tracked analytes.
Source: EPA SDWIS/ECHO · Data as of 2026Q2