ALDERBROOK WATER CO: EPA violation history, explained
ALDERBROOK WATER CO has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 2,154 people through 547 service connections.
ALDERBROOK WATER CO's record against the rest of the country
8 total violations and 1 health-based ones put ALDERBROOK WATER CO at the 35th percentile nationally for violation burden, rank 8,419 of 12,903.
How ALDERBROOK WATER CO compares within WA
WA's 322 covered systems average 3.7 health-based violations each; ALDERBROOK WATER CO carries 1, not more than typical for the state. 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 ALDERBROOK WATER CO is from 2000-01-07 (health-based: 2000-01-07). Last reported to EPA: 06/19/2026.
What kind of problem, specifically
ALDERBROOK 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 ALDERBROOK 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 ALDERBROOK WATER CO's customers' taps is household plumbing, invisible to a system-level record ranked 8,419th of 12,903 by violation count. The guide to what this data misses covers that gap.