Water Quality: Vallejo, CA
3 water systems • 124,223 people served
Multiple Health ViolationsWater Quality Summary
Vallejo is served by 3 public water systems with a combined service population of 124,223 people, and has 5 EPA Safe Drinking Water Act violations on record. Critically, 5 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Vallejo's violation count is 90% below the national average for California. Contaminants associated with violations include Gross Alpha, TTHM.
Contaminants Found
Alpha-emitting radioactive particles increase cancer risk, particularly from bone and other internal cancers.
Common source: Natural uranium and radium in geological formations
EPA limit: 15 pCi/L (excluding radon and uranium)
Total trihalomethanes are linked to increased risk of bladder cancer and adverse reproductive outcomes.
Common source: Reaction of chlorine disinfectants with naturally occurring organic matter in water
EPA limit: 0.080 mg/L (80 ppb)
Water Systems Serving Vallejo
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| CITY OF VALLEJO | CA4810007 | Surface Water | 121,420 | 4 |
| CITY OF VALLEJO-LAKES SYSTEM | CA4810021 | Surface Water | 2,800 | 1 |
| TRAVIS AFB WTP - VALLEJO | CA4810015 | Surface Water | 3 | 0 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Other Cities in California
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.