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💧 TapWaterData

Water Quality in ZIP Code 98101

Serving Seattle, WA

Warning
4 above health guidelines
1
City
331+
Tested
4
Above Guidelines
2
Utilities

Is Water Safe in ZIP Code 98101?

Water in ZIP code 98101 has 4 contaminants above EPA health-based guidelines (MCLGs) in at least one of the 1 city served. We recommend reviewing detailed city reports below and considering a certified water filter for additional protection.

This ZIP code is served by 2 water utilities providing water to Seattle. Water quality varies by utility and city. Click on the cities below to see detailed reports for your specific area.

Water Quality Report for ZIP 98101

2 contaminants above EPA health guidelines

These levels represent the worst case across all cities in this ZIP code. Check individual city reports for specific details.

Arsenic

Found in Seattle

0.009 PPM
Guideline: 0 PPM
Bromodichloromethane

Found in Seattle

1.8 PPB
Guideline: 0 PPB

Water Utilities Serving ZIP 98101

CHERRYWOOD MOBILE HOME MANOR

People Served:

120

Contact:

Not available

Water Source:

Groundwater

Contaminants Tested:

158

SEATTLE PUBLIC UTILITIES

People Served:

955,506

Contact:

Not available

Water Source:

Surface water

Contaminants Tested:

173

Best Water Filters for ZIP 98101

Based on the contaminants found in your area, we recommend NSF-certified water filters that can remove the specific contaminants above health guidelines.

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Is Tap Water Safe in ZIP 98101? Seattle Water Quality 2026 | Test Results & Contaminants | TapWaterData