What's in WINLOCK CITY OF's water?
WINLOCK CITY OF has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 3,502, over 1,040 connections.
How this compares nationally
143 total violations and 2 health-based ones put WINLOCK CITY OF at the 56th percentile nationally for violation burden, rank 5,730 of 12,903.
Against the WA average
Among the 322 WA systems in this dataset, the average is 3.7 health-based violations - WINLOCK CITY OF's 2 is at or below that. See the lead and copper guide for why lead counts differently.
Most recent violation on record
WINLOCK CITY OF's most recent violation on record is dated 2014-01-07, with the most recent health-based one dated 1998-01-11. Last reported to EPA: 06/19/2026.
The concern categories on record
WINLOCK CITY OF'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 WINLOCK CITY OF's record does not cover
WINLOCK CITY OF'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. Between the utility's meter and WINLOCK CITY OF's customers' taps is household plumbing, invisible to a system-level record ranked 5,730th of 12,903 by violation count. The guide to what this data misses covers that gap.