Site

State

AQI*

Colville-E 1st St

WA

19

John Day Dayton St

OR

16

Twisp-Glover St

WA

15

Yakima-4th Ave

WA

14

Omak-Colville Tribe

WA

13

Toppenish-Yakama Tribe

WA

13

Enterprise - US Forest Service

OR

13

Sweet Home - Fire Department

OR

13

Shady Cove - Shady Cove School

OR

12

Springfield City Hall

OR

12