What's in WESTLAKE CITY OF WATER SYSTEM's water?
WESTLAKE CITY OF WATER SYSTEM has at least one health-based violation EPA's ECHO database still lists as unaddressed - the required fix has not been reported complete. Population served: 4,858, over 2,029 connections.
Ranked against every other system in this dataset
21 total violations and 11 health-based ones put WESTLAKE CITY OF WATER SYSTEM at the 86th percentile nationally for violation burden, rank 1,798 of 12,903.
Against the LA average
Among the 347 LA systems in this dataset, the average is 12.6 health-based violations - WESTLAKE CITY OF WATER SYSTEM's 11 is at or below that. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
WESTLAKE CITY OF WATER SYSTEM's most recent violation on record is dated 2025-06-12, with the most recent health-based one dated 2023-05-12. Last reported to EPA: 06/23/2026.
The concern categories on record
WESTLAKE CITY OF WATER 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); Groundwater Rule
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 WESTLAKE CITY OF WATER SYSTEM's record does not cover
This is what WESTLAKE CITY OF WATER SYSTEM 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 - 11 health-based violations on file for WESTLAKE CITY OF WATER SYSTEM - 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.