SONOMA COUNTY CSA 41-JENNER
Santa Rosa, CA · 406 served
SONOMA COUNTY CSA 41-JENNER serves 406 people in Santa Rosa, 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)
2
Currently unaddressed
0
Overall score
96/100
Violation history (last 5 years)
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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
- Ownership
- Local government
- Service connections
- 123
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Is Santa Rosa, CA tap water safe to drink?
SONOMA COUNTY CSA 41-JENNER has 0 health-based violations in the last 5 years. TapGraded gives this system an A.
Does SONOMA COUNTY CSA 41-JENNER have lead in its water?
The most recent 90th-percentile lead sample is 2.7 ppb, versus the EPA action level of 15 ppb.
Has PFAS been detected in SONOMA COUNTY CSA 41-JENNER'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