Polacca: EPA violation history, explained
Polacca has at least one health-based violation EPA's ECHO database still lists as unaddressed - the required fix has not been reported complete. Population served: 3,890, over 446 connections.
Polacca's record against the rest of the country
Out of 12,903 systems in this dataset, Polacca ranks 133th by violation burden (99th percentile) - 376 violations total, 74 health-baseds.
How Polacca compares within AZ
Polacca's 74 health-based violations sit above the AZ average of 8.2, across 199 systems statewide. See the lead and copper guide for why lead counts differently.
Most recent violation on record
The last violation EPA has on record for Polacca is from 2025-05-10 (health-based: 2025-05-10). Last reported to EPA: 06/30/2026.
What kind of problem, specifically
Polacca'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); Revised Total Coliform Rule
- Other regulated metals - flagged from: Arsenic
The most severe category on record is lead & copper, which points toward a lead-class filter if you want to address it directly.
What this data is and is not
This is what Polacca 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 - 74 health-based violations on file for Polacca - 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.