SAN JOAQUIN, CITY OF: EPA violation history, explained
SAN JOAQUIN, CITY OF has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 4,060 people through 754 service connections.
How this compares nationally
Out of 12,903 systems in this dataset, SAN JOAQUIN, CITY OF ranks 1,500th by violation burden (88th percentile) - 20 violations total, 13 health-baseds.
How SAN JOAQUIN, CITY OF compares within CA
SAN JOAQUIN, CITY OF's 13 health-based violations sit above 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
The last violation EPA has on record for SAN JOAQUIN, CITY OF is from 2010-01-09 (health-based: 2010-01-09). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
SAN JOAQUIN, CITY OF'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: Coliform (TCR)
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 this data is and is not
SAN JOAQUIN, CITY OF's numbers here come from its own required reporting to EPA under the Safe Drinking Water Act, not from an independent test of your glass of water. Between the utility's meter and SAN JOAQUIN, CITY OF's customers' taps is household plumbing, invisible to a system-level record ranked 1,500th of 12,903 by violation count. The guide to what this data misses covers that gap.