SAMMAMISH PLATEAU WATER & SEWER
Community Water System · Washington · Sammamish
PWSID: WA5340900
WholesalerHas Violations
Population Served
79.4K
Service Connections
24.8K
Total Violations
77
Health-Based Violations
5
Lead & Copper Data
Lead Level
Caution1.50 ppb
Action Level: 15 ppb (EPA) · Sampled: 2022-12-31
015 ppb action level
Copper Level
3800 ppb
Action Level: 1,300 ppb (EPA) · Sampled: 1993-06-30
Copper action level exceeded
System Details
- Water Source
- Purchased Surface Water
- System Type
- Community Water System
- City
- Sammamish
- ZIP Code
- 98075
- Counties Served
- King
- Cities Served
- Sammamish
- Open Violations
- 0
- State
- Washington
Violation Summary
77
Total Violations
5
Health-Based
0
Open Now
Most recent violation: 2009-01-01
Explore Washington Water Quality
See all water systems, lead data, and violation trends for Washington.
Data source: EPA ECHO SDWIS Bulk Download (Jan 2026). PWSID: WA5340900.SafeWater Home