What's in CITY OF WESTMINSTER's water?
CITY OF WESTMINSTER has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 90,911 people through 20,763 service connections.
How this compares nationally
5 total violations and 2 health-based ones put CITY OF WESTMINSTER at the 47th percentile nationally for violation burden, rank 6,837 of 12,903.
Against the CA average
CA's 803 covered systems average 5.8 health-based violations each; CITY OF WESTMINSTER carries 2, not more than typical for the state. See the lead and copper guide for why lead counts differently.
Most recent violation on record
CITY OF WESTMINSTER's most recent violation on record is dated 2013-01-01, with the most recent health-based one dated 1993-01-04. Last reported to EPA: 06/22/2026.
The concern categories on record
CITY OF WESTMINSTER'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 CITY OF WESTMINSTER's record does not cover
Everything on this page is CITY OF WESTMINSTER's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Between the utility's meter and CITY OF WESTMINSTER's customers' taps is household plumbing, invisible to a system-level record ranked 6,837th of 12,903 by violation count. The guide to what this data misses covers that gap.