In your watershed

Washington is divided into 62 Water Resource Inventory Areas (WRIAs) based on natural watersheds. Due to Washington’s varied land uses, hydrology, and precipitation levels, the amount of water available for new water right permits varies dramatically across the state.

What is a WRIA?

WRIAs are areas defined by higher elevation that capture precipitation and funnel rain and snowmelt through smaller subbasins into streams, tributaries, and rivers. Due to Washington’s varied terrain and precipitation levels, water availability is different in each location.

On the WRIA pages found below, you can learn more about the key factors affecting water availability in your WRIA. Note: Some of these pages are still being developed. If you don’t see a link to information for the WRIA you’re looking for, check back soon.

1-22	23-44	45-62
1 Nooksack 2 San Juan 3 Lower Skagit 4 Upper Skagit 5 Stillaguamish 6 Island 7 Snohomish 8 Cedar/Sammamish 9 Duwamish-Green 10 Puyallup-White 11 Nisqually 12 Chambers-Clover 13 Deschutes 14 Kennedy-Goldsborough 15 Kitsap 16 Skokomish-Dosewallips 17 Quilcene-Snow 18 Elwha-Dungeness 19 Lyre-Hoko 20 Soleduc-Hoh 21 Queets-Quinault 22 Lower Chehalis	23 Upper Chehalis 24 Willapa 25 Grays-Elochoman 26 Cowlitz 27 Lewis 28 Salmon-Washougal 29 Wind-White Salmon 30 Klickitat 31 Rock-Glade 32 Walla Walla 33 Lower Snake 34 Palouse 35 Middle Snake 36 Esquatzel-Coulee 37 Lower Yakima 38 Naches 39 Upper Yakima 40 Alkli-Squilchuck 41 Lower Crab 42 Grand Coulee 43 Upper Crab 44 Moses Coulee	45 Wenatchee 46 Entiat 47 Chelan 48 Methow 49 Okanogan 50 Foster 51 Nespelem 52 Sanpoil 53 Lower Lake Roosevelt 54 Lower Spokane 55 Little Spokane 56 Hangman 57 Middle Spokane 58 Middle Lake Roosevelt 59 Colville 60 Kettle 61 Upper Lake Roosevelt 62 Pend Oreille

A-D	D-K	L-S	T-Z
Adams Asotin Benton Chelan Clallam Clark Columbia Cowlitz Douglas	Ferry Franklin Garfield Grant Grays Harbor Island Jefferson King Kitsap Kittitas Klickitat	Lewis Lincoln Mason Okanogan Pacific Pend Oreille Pierce San Juan Skagit Skamania Snohomish Spokane Stevens	Thurston Wahkiakum Walla Walla Whatcom Whitman Yakima Statewide

Contact information

Keeley Belva
Communications Manager
k eeley.belva@ecy.wa.gov
360-407-7139

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