F0/100
LYNDEN WATER DEPARTMENT — Water Quality Report 2026
Serving 17,969 people · Washington
Water Source
Surface Water
County
—
System ID
WA5349150
Violations
30
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
1
Health-Related
TIER 3Resolved
Failed to complete routine monitoring
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2025 – July 31, 2025Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 1 — URGENTResolved
Violation related to Nitrate
When: December 1, 2023 – December 31, 2023Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About LYNDEN WATER DEPARTMENT
Is LYNDEN WATER DEPARTMENT water safe to drink?
LYNDEN WATER DEPARTMENT water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 30 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has LYNDEN WATER DEPARTMENT detected?
69 contaminants were tested in LYNDEN WATER DEPARTMENT's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does LYNDEN WATER DEPARTMENT have any EPA violations?
Yes, LYNDEN WATER DEPARTMENT has 30 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, TT, MCL. 18 are health-based violations.
How many people does LYNDEN WATER DEPARTMENT serve?
LYNDEN WATER DEPARTMENT serves approximately 17,969 people, Washington.
What type of water does LYNDEN WATER DEPARTMENT provide?
LYNDEN WATER DEPARTMENT sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is WA5349150.
How does LYNDEN WATER DEPARTMENT compare to other utilities in Washington?
LYNDEN WATER DEPARTMENT scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Washington state page for a full comparison of water systems.