A85/100
ROSLYN CITY OF — Water Quality Report 2026
Serving 2,099 people · Washington
Water Source
Surface Water
County
—
System ID
WA5374400
Violations
11
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, 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 ROSLYN CITY OF
Is ROSLYN CITY OF water safe to drink?
ROSLYN CITY OF water receives a grade of A (85/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has ROSLYN CITY OF detected?
1 contaminants were tested in ROSLYN CITY OF's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does ROSLYN CITY OF have any EPA violations?
Yes, ROSLYN CITY OF has 11 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MR, TT. 1 are health-based violations.
How many people does ROSLYN CITY OF serve?
ROSLYN CITY OF serves approximately 2,099 people, Washington.
What type of water does ROSLYN CITY OF provide?
ROSLYN CITY OF 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 WA5374400.
How does ROSLYN CITY OF compare to other utilities in Washington?
ROSLYN CITY OF scores 85/100 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.