B73/100
LANGLEY CITY OF — Water Quality Report 2026
Serving 1,416 people · Washington
Water Source
Groundwater
County
—
System ID
WA5345950
Violations
8
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.50 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2025 – September 25, 2025Enforcement: 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 LANGLEY CITY OF
Is LANGLEY CITY OF water safe to drink?
LANGLEY CITY OF water receives a grade of B (73/100), which is considered good. Out of 2 contaminants tested, 1 exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has LANGLEY CITY OF detected?
2 contaminants were tested in LANGLEY CITY OF's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does LANGLEY CITY OF have any EPA violations?
Yes, LANGLEY CITY OF has 8 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MCL, MR. 2 are health-based violations.
How many people does LANGLEY CITY OF serve?
LANGLEY CITY OF serves approximately 1,416 people, Washington.
What type of water does LANGLEY CITY OF provide?
LANGLEY CITY OF sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WA5345950.
How does LANGLEY CITY OF compare to other utilities in Washington?
LANGLEY CITY OF scores 73/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Washington state page for a full comparison of water systems.