What's in WASCO, CITY OF's water?
WASCO, CITY OF has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 22,757, over 5,361 connections.
Ranked against every other system in this dataset
WASCO, CITY OF has 15 violations on record in total, 9 of thems health-based - ranking it 2,229th of 12,903 systems by violation count, the 83th percentile nationally.
Against the CA average
Among the 803 CA systems in this dataset, the average is 5.8 health-based violations - WASCO, CITY OF's 9 is above that. See the lead and copper guide for why lead counts differently.
Most recent violation on record
WASCO, CITY OF's most recent violation on record is dated 2014-01-07, with the most recent health-based one dated 2014-01-07. Last reported to EPA: 06/22/2026.
The concern categories on record
WASCO, 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:
- Microbial contamination / treatment technique - flagged from: Coliform (TCR)
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 WASCO, CITY OF's record does not cover
WASCO, CITY OF'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. This record - 9 health-based violations on file for WASCO, CITY OF - 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.