Is CALIFORNIA WATER SERVICE CO. - ELA's water safe to drink?
CALIFORNIA WATER SERVICE CO. - ELA has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 152,474, over 26,215 connections.
Ranked against every other system in this dataset
5 total violations and 3 health-based ones put CALIFORNIA WATER SERVICE CO. - ELA at the 57th percentile nationally for violation burden, rank 5,517 of 12,903.
How CALIFORNIA WATER SERVICE CO. - ELA compares within CA
Among the 803 CA systems in this dataset, the average is 5.8 health-based violations - CALIFORNIA WATER SERVICE CO. - ELA's 3 is at or below that. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
The last violation EPA has on record for CALIFORNIA WATER SERVICE CO. - ELA is from 2000-01-08 (health-based: 1996-01-04). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
CALIFORNIA WATER SERVICE CO. - ELA'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:
- Nitrate / nitrite - flagged from: Nitrate
The most severe category on record is nitrate / nitrite, which points toward a reverse osmosis-class filter if you want to address it directly.
What this data is and is not
CALIFORNIA WATER SERVICE CO. - ELA'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. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 5 logged violations can see. The guide to what this data misses covers that gap.