GW SANTA CRUZ WATER CO: EPA violation history, explained
GW SANTA CRUZ WATER CO had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. Population served: 84,000, over 17,123 connections.
Ranked against every other system in this dataset
GW SANTA CRUZ WATER CO has 102 violations on record in total, 6 of thems health-based - ranking it 2,935th of 12,903 systems by violation count, the 77th percentile nationally.
Against the AZ average
AZ's 199 covered systems average 8.2 health-based violations each; GW SANTA CRUZ WATER CO carries 6, not more than typical for the state. See the lead and copper guide for why lead counts differently.
Most recent violation on record
GW SANTA CRUZ WATER CO's most recent violation on record is dated 2026-07-07, with the most recent health-based one dated 2025-01-08. Last reported to EPA: 05/14/2026.
The concern categories on record
GW SANTA CRUZ WATER CO'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); Revised Total Coliform Rule
- Radionuclides - flagged from: Combined Uranium
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 GW SANTA CRUZ WATER CO's record does not cover
This is what GW SANTA CRUZ WATER CO 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. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 102 logged violations can see. The guide to what this data misses covers that gap.