What's in CITY OF VALLEJO's water?
CITY OF VALLEJO has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 121,420 people through 36,795 service connections.
How this compares nationally
CITY OF VALLEJO has 6 violations on record in total, 3 of thems health-based - ranking it 5,465th of 12,903 systems by violation count, the 58th percentile nationally.
Against the CA average
CITY OF VALLEJO's 3 health-based violations sit within the CA average of 5.8, across 803 systems statewide. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
CITY OF VALLEJO's most recent violation on record is dated 1993-01-06, with the most recent health-based one dated 1993-01-06. Last reported to EPA: 06/22/2026.
The concern categories on record
CITY OF VALLEJO's flagged contaminants and rule violations, grouped by what they actually mean for a filter choice rather than left as EPA's raw code list:
- Microbial contamination / treatment technique - flagged from: Surface Water Treatment Rule
- Disinfection byproducts - flagged from: TTHM
The most severe category on record is microbial contamination / treatment technique, which points toward a microbial-class filter if you want to address it directly.
What CITY OF VALLEJO's record does not cover
Everything on this page is CITY OF VALLEJO's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. This record - 3 health-based violations on file for CITY OF VALLEJO - stops at the meter and cannot see household plumbing on the other side of it. The guide to what this data misses covers that gap.