Is WILLIAMS CITY OF's water safe to drink?
WILLIAMS CITY OF had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. 3,145 people get their water from it, across 1,883 connections.
WILLIAMS CITY OF's record against the rest of the country
Out of 12,903 systems in this dataset, WILLIAMS CITY OF ranks 1,408th by violation burden (89th percentile) - 244 violations total, 13 health-baseds.
Against the AZ average
Among the 199 AZ systems in this dataset, the average is 8.2 health-based violations - WILLIAMS CITY OF's 13 is above that. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
WILLIAMS CITY OF's most recent violation on record is dated 2026-01-02, with the most recent health-based one dated 2026-01-01. Last reported to EPA: 05/14/2026.
The concern categories on record
WILLIAMS CITY OF'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:
- Radionuclides - flagged from: Gross Alpha, Excl. Radon and U
- Microbial contamination / treatment technique - flagged from: Interim Enhanced Surface Water Treatment Rule
- Other regulated metals - flagged from: Arsenic
- Synthetic organic chemicals / pesticides / VOCs - flagged from: CARBON, TOTAL
- Disinfection byproducts - flagged from: TTHM
The most severe category on record is radionuclides, which points toward a reverse osmosis-class filter if you want to address it directly.
What WILLIAMS CITY OF's record does not cover
This is what WILLIAMS CITY OF 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 WILLIAMS CITY OF's customers' taps is household plumbing, invisible to a system-level record ranked 1,408th of 12,903 by violation count. The guide to what this data misses covers that gap.