Cerrillos, PR Water Quality
Cerrillos: EPA violation history, explained
Cerrillos has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 5,658 people get their water from it, across 2,119 connections.
How this compares nationally
Cerrillos has 79 violations on record in total, 5 of them health-based - ranking it 3,390th of 12,903 systems by violation count, the 74th percentile nationally.
Against the PR average
Among the 120 PR systems in this dataset, the average is 48.9 health-based violations - Cerrillos's 5 is at or below that. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
Cerrillos's most recent violation on record is dated 2020-01-07, with the most recent health-based one dated 2011-01-11. Last reported to EPA: 06/05/2026.
The concern categories on record
Cerrillos'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 Cerrillos's record does not cover
Everything on this page is Cerrillos's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. This record - 5 health-based violations on file for Cerrillos - 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.