CITY OF LATHROP: EPA violation history, explained
CITY OF LATHROP has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 35,080 people get their water from it, across 11,185 connections.
Ranked against every other system in this dataset
50 total violations and 42 health-based ones put CITY OF LATHROP at the 97th percentile nationally for violation burden, rank 356 of 12,903.
How CITY OF LATHROP compares within CA
CA's 803 covered systems average 5.8 health-based violations each; CITY OF LATHROP carries 42, more than typical for the state. See the lead and copper guide for why lead counts differently.
Most recent violation on record
The last violation EPA has on record for CITY OF LATHROP is from 2018-01-07 (health-based: 2014-01-04). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
CITY OF LATHROP'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)
- Radionuclides - flagged from: Combined Uranium
- Other regulated metals - flagged from: Arsenic
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
CITY OF LATHROP'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 CITY OF LATHROP's customers' taps is household plumbing, invisible to a system-level record ranked 356th of 12,903 by violation count. The guide to what this data misses covers that gap.