What's in CITY OF SANTA ROSA's water?
CITY OF SANTA ROSA had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. 2,883 people get their water from it, across 787 connections.
CITY OF SANTA ROSA's record against the rest of the country
Out of 12,903 systems in this dataset, CITY OF SANTA ROSA ranks 417th by violation burden (97th percentile) - 108 violations total, 37 health-baseds.
Against the TX average
TX's 1,633 covered systems average 6.7 health-based violations each; CITY OF SANTA ROSA carries 37, more than typical for the state. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
CITY OF SANTA ROSA's most recent violation on record is dated 2026-12-12, with the most recent health-based one dated 2026-01-01. Last reported to EPA: 06/26/2026.
The concern categories on record
CITY OF SANTA ROSA'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:
- Lead & copper - flagged from: LEAD AND COPPER RULE REVISIONS
- Microbial contamination / treatment technique - flagged from: Coliform (TCR)
- Disinfection byproducts - flagged from: Chlorite; TTHM; Total Haloacetic Acids (HAA5)
The most severe category on record is lead & copper, which points toward a lead-class filter if you want to address it directly.
What CITY OF SANTA ROSA's record does not cover
This is what CITY OF SANTA ROSA 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. Between the utility's meter and CITY OF SANTA ROSA's customers' taps is household plumbing, invisible to a system-level record ranked 417th of 12,903 by violation count. The guide to what this data misses covers that gap.