CITY OF SAN BRUNO: EPA violation history, explained

CITY OF SAN BRUNO's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. 42,631 people get their water from it, across 11,479 connections.

Ranked against every other system in this dataset

CITY OF SAN BRUNO has 1 violation on record in total, 0 of thems health-based - ranking it 12,281th of 12,903 systems by violation count, the 5th percentile nationally.

Against the CA average

Among the 803 CA systems in this dataset, the average is 5.8 health-based violations - CITY OF SAN BRUNO's 0 is at or below that. The clean-record guide covers what a comparison like this can hide.

Most recent violation on record

CITY OF SAN BRUNO's most recent violation on record is dated 2010-01-01. Last reported to EPA: 06/22/2026.

What CITY OF SAN BRUNO's record does not cover

Everything on this page is CITY OF SAN BRUNO's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Between the utility's meter and CITY OF SAN BRUNO's customers' taps is household plumbing, invisible to a system-level record ranked 12,281th of 12,903 by violation count. The guide to what this data misses covers that gap.