DrinkingWaterCheck

What's in PICO WD's water?

PICO WD has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 22,051, over 5,361 connections.

Ranked against every other system in this dataset

24 total violations and 2 health-based ones put PICO WD at the 52th percentile nationally for violation burden, rank 6,151 of 12,903.

Against the CA average

Among the 803 CA systems in this dataset, the average is 5.8 health-based violations - PICO WD's 2 is at or below that. The filter guide explains what a violation like this actually calls for.

Most recent violation on record

PICO WD's most recent violation on record is dated 2021-01-01, with the most recent health-based one dated 1993-01-10. Last reported to EPA: 06/22/2026.

The concern categories on record

PICO WD'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:

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 PICO WD's record does not cover

PICO WD'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 - 2 health-based violations on file for PICO WD - 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.