A99/100
BOTHELL WATER CITY OF — Water Quality Report 2026
Serving 33,643 people · Washington
Water Source
Purchased Surface Water
County
—
System ID
WA5307900
Violations
1
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 – June 27, 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 BOTHELL WATER CITY OF
Is BOTHELL WATER CITY OF water safe to drink?
BOTHELL WATER CITY OF water receives a grade of A (99/100), which is considered excellent. Out of 68 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has BOTHELL WATER CITY OF detected?
68 contaminants were tested in BOTHELL WATER CITY OF's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does BOTHELL WATER CITY OF have any EPA violations?
Yes, BOTHELL WATER CITY OF has 1 EPA violation(s) on record, with the most recent in 2024. Violation types include Other.
How many people does BOTHELL WATER CITY OF serve?
BOTHELL WATER CITY OF serves approximately 33,643 people, Washington.
What type of water does BOTHELL WATER CITY OF provide?
BOTHELL WATER CITY OF 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 WA5307900.
How does BOTHELL WATER CITY OF compare to other utilities in Washington?
BOTHELL WATER CITY OF scores 99/100 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.