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Local water quality

Water quality in Seattle, Washington

12 public water systems · EPA data

The bottom line

EPA records for the water serving Seattle, Washington show Lead, Copper, Nitrate and more. A filter independently certified to reduce those exact contaminants is the most direct fix.

What's in Seattle's water

Contaminants EPA has recorded across Seattle's water systems, and how many certified filters remove each.

Lead 757 certified filters → Copper 192 certified filters → Nitrate 77 certified filters → Arsenic 128 certified filters → Total Trihalomethanes 147 certified filters →

Water systems serving Seattle

Open a system for its full report — measured levels vs. federal limits, PFAS, and the certified filters that remove each contaminant.

SEATTLE PUBLIC UTILITIES
1,161,961 people served
1 contaminant · report →
SKYWAY WATER & SEWER
12,036 people served
1 contaminant · report →
TRIDENT SEAFOODS CORP. AKUTAN
1,400 people served
1 contaminant · report →
TRIDENT SEAFOODS INC. SAND PT
400 people served
4 contaminants · report →
Bullitt Center
175 people served
1 contaminant · report →
MEADOW WOOD SHOPPING MALL - BIG LAKE
110 people served
1 contaminant · report →
UPS-HERMISTON
100 people served
2 contaminants · report →
HIDDEN VILLAGE MHP, LLC
66 people served
2 contaminants · report →
MONTIPARK LLC
60 people served
2 contaminants · report →
GOLF MHP
60 people served
3 contaminants · report →
HOT SPRINGS COURT
55 people served
2 contaminants · report →
RIVER VILLAGE MHP
40 people served
2 contaminants · report →

Filter your Seattle water

Match a certified filter to what's actually in your water — a filter certified for lead may do nothing for PFAS or fluoride.

Get my exact water report Which filter is right for me?