LYNDEN WATER DEPARTMENT: EPA violation history, explained
LYNDEN WATER DEPARTMENT had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. Population served: 20,062, over 6,847 connections.
How this compares nationally
31 total violations and 18 health-based ones put LYNDEN WATER DEPARTMENT at the 92th percentile nationally for violation burden, rank 1,017 of 12,903.
Against the WA average
Among the 322 WA systems in this dataset, the average is 3.7 health-based violations - LYNDEN WATER DEPARTMENT's 18 is above that. See the lead and copper guide for why lead counts differently.
Most recent violation on record
LYNDEN WATER DEPARTMENT's most recent violation on record is dated 2025-01-07, with the most recent health-based one dated 2023-01-12. Last reported to EPA: 06/19/2026.
The concern categories on record
LYNDEN WATER DEPARTMENT'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: Interim Enhanced Surface Water Treatment Rule; Surface Water Treatment Rule
- Nitrate / nitrite - flagged from: Nitrate
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 LYNDEN WATER DEPARTMENT's record does not cover
LYNDEN WATER DEPARTMENT'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 - 18 health-based violations on file for LYNDEN WATER DEPARTMENT - 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.