Golden State Water Co.-Clearlake System, CA Water Quality
Is Golden State Water Co.-Clearlake System's water safe to drink?
Golden State Water Co.-Clearlake System has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 4,644, over 2,132 connections.
Ranked against every other system in this dataset
Golden State Water Co.-Clearlake System has 1 violation on record in total, 1 of them health-based - ranking it 9,212th of 12,903 systems by violation count, the 29th percentile nationally.
Against the CA average
CA's 804 covered systems average 5.8 health-based violations each; Golden State Water Co.-Clearlake System carries 1, not more than typical for the state. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
Golden State Water Co.-Clearlake System's most recent violation on record is dated 1994-01-11, with the most recent health-based one dated 1994-01-11. Last reported to EPA: 06/22/2026.
The concern categories on record
Golden State Water Co.-Clearlake System'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 Golden State Water Co.-Clearlake System's record does not cover
Everything on this page is Golden State Water Co.-Clearlake System's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 1 logged violations can see. The guide to what this data misses covers that gap.