DrinkingWaterCheck

MANTECA, CITY OF: EPA violation history, explained

MANTECA, CITY OF has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 84,928, over 27,552 connections.

How this compares nationally

Out of 12,903 systems in this dataset, MANTECA, CITY OF ranks 446th by violation burden (97th percentile) - 43 violations total, 36 health-baseds.

Against the CA average

CA's 803 covered systems average 5.8 health-based violations each; MANTECA, CITY OF carries 36, more than typical for the state. See the lead and copper guide for why lead counts differently.

Most recent violation on record

MANTECA, CITY OF's most recent violation on record is dated 2024-01-01, with the most recent health-based one dated 2013-01-07. Last reported to EPA: 06/22/2026.

The concern categories on record

MANTECA, 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:

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 MANTECA, CITY OF's record does not cover

This is what MANTECA, CITY OF reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. This record - 36 health-based violations on file for MANTECA, CITY OF - 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.