What's in MAYWOOD MUTUAL WATER CO. #3's water?
MAYWOOD MUTUAL WATER CO. #3 has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 6,059 people get their water from it, across 2,023 connections.
How this compares nationally
Out of 12,903 systems in this dataset, MAYWOOD MUTUAL WATER CO. #3 ranks 5,538th by violation burden (57th percentile) - 5 violations total, 3 health-baseds.
How MAYWOOD MUTUAL WATER CO. #3 compares within CA
Among the 803 CA systems in this dataset, the average is 5.8 health-based violations - MAYWOOD MUTUAL WATER CO. #3'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 MAYWOOD MUTUAL WATER CO. #3 is from 2019-01-10 (health-based: 2003-01-07). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
MAYWOOD MUTUAL WATER CO. #3'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 MAYWOOD MUTUAL WATER CO. #3's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. This record - 3 health-based violations on file for MAYWOOD MUTUAL WATER CO. #3 - 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.