What's in DAVIS's water?
DAVIS had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. 2,610 people get their water from it, across 1,713 connections.
How this compares nationally
DAVIS has 41 violations on record in total, 19 of thems health-based - ranking it 943th of 12,903 systems by violation count, the 93th percentile nationally.
Against the OK average
Among the 240 OK systems in this dataset, the average is 39.5 health-based violations - DAVIS's 19 is at or below that. See the lead and copper guide for why lead counts differently.
Most recent violation on record
DAVIS's most recent violation on record is dated 2025-05-10, with the most recent health-based one dated 2025-05-10. Last reported to EPA: 05/13/2026.
The concern categories on record
DAVIS'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); Interim Enhanced Surface Water Treatment Rule; Surface Water Treatment Rule
- Synthetic organic chemicals / pesticides / VOCs - flagged from: CARBON, TOTAL
The most severe category on record is lead & copper, which points toward a lead-class filter if you want to address it directly.
What DAVIS's record does not cover
This is what DAVIS 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 - 19 health-based violations on file for DAVIS - 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.