Grand Canyon West: EPA violation history, explained
Grand Canyon West had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. It serves 3,120 people through 51 service connections.
Grand Canyon West's record against the rest of the country
Grand Canyon West has 133 violations on record in total, 15 of thems health-based - ranking it 1,212th of 12,903 systems by violation count, the 91th percentile nationally.
How Grand Canyon West compares within AZ
AZ's 199 covered systems average 8.2 health-based violations each; Grand Canyon West carries 15, more than typical for the state. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
The last violation EPA has on record for Grand Canyon West is from 2023-10-12 (health-based: 2023-10-12). Last reported to EPA: 06/30/2026.
What kind of problem, specifically
Grand Canyon West'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
- Microbial contamination / treatment technique - flagged from: Coliform (TCR); Groundwater Rule
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
Grand Canyon West's numbers here come from its own required reporting to EPA under the Safe Drinking Water Act, not from an independent test of your glass of water. Between the utility's meter and Grand Canyon West's customers' taps is household plumbing, invisible to a system-level record ranked 1,212th of 12,903 by violation count. The guide to what this data misses covers that gap.