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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

Caution

1.50 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

Violation Summary

77

Total Violations

5

Health-Based

0

Open Now

Most recent violation: 2009-01-01

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Data source: EPA ECHO SDWIS Bulk Download (Jan 2026). PWSID: WA5340900.SafeWater Home