A91/100
KING COUNTY WATER DISTRICT #125 — Water Quality Report 2026
Serving 17,546 people · Washington
Water Source
Purchased Surface Water
County
—
System ID
WA5341998
Violations
5
Contaminant Test Results
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2024 – February 19, 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 KING COUNTY WATER DISTRICT #125
Is KING COUNTY WATER DISTRICT #125 water safe to drink?
KING COUNTY WATER DISTRICT #125 water receives a grade of A (91/100), which is considered excellent. Out of 68 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has KING COUNTY WATER DISTRICT #125 detected?
68 contaminants were tested in KING COUNTY WATER DISTRICT #125's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does KING COUNTY WATER DISTRICT #125 have any EPA violations?
Yes, KING COUNTY WATER DISTRICT #125 has 5 EPA violation(s) on record, with the most recent in 2024. Violation types include Other, MR, MCL. 1 are health-based violations.
How many people does KING COUNTY WATER DISTRICT #125 serve?
KING COUNTY WATER DISTRICT #125 serves approximately 17,546 people, Washington.
What type of water does KING COUNTY WATER DISTRICT #125 provide?
KING COUNTY WATER DISTRICT #125 sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is WA5341998.
How does KING COUNTY WATER DISTRICT #125 compare to other utilities in Washington?
KING COUNTY WATER DISTRICT #125 scores 91/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Washington state page for a full comparison of water systems.