Is WALNUT PARK MUTUAL WATER CO.'s water safe to drink?
WALNUT PARK MUTUAL WATER CO. has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 16,180 people get their water from it, across 2,832 connections.
WALNUT PARK MUTUAL WATER CO.'s record against the rest of the country
5 total violations and 1 health-based ones put WALNUT PARK MUTUAL WATER CO. at the 33th percentile nationally for violation burden, rank 8,692 of 12,903.
How WALNUT PARK MUTUAL WATER CO. compares within CA
WALNUT PARK MUTUAL WATER CO.'s 1 health-based violations sit within the CA average of 5.8, across 803 systems statewide. 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 WALNUT PARK MUTUAL WATER CO. is from 2023-01-06 (health-based: 1998-01-01). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
WALNUT PARK MUTUAL WATER CO.'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 this data is and is not
Everything on this page is WALNUT PARK MUTUAL WATER CO.'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 WALNUT PARK MUTUAL WATER CO.'s customers' taps is household plumbing, invisible to a system-level record ranked 8,692th of 12,903 by violation count. The guide to what this data misses covers that gap.