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Water Quality Improvement Projects
Water Cleanup Plans:
Listed by County and WRIA

Water Cleanup Plans will result in cleaner lakes, streams, rivers, and bays. Clean water is vital for our quality of life – for both economic development and a healthy environment. Total Maximum Daily Loads (TMDLs) are one way to return our water bodies to a healthy condition. TMDLs describe the type, amount and sources of water pollution in a particular water body; they analyze how much the pollution needs to be reduced or eliminated to meet water quality standards; and they provide targets and strategies to control the pollution.

Please select project area by county or WRIAs ¹.

	Select by WRIA
by County by WRIA	WRIAs County 01 - Nooksack Skagit Whatcom 02 - San Juan San Juan 03 - Lower Skagit-Samish Skagit Snohomish Whatcom 04 - Upper Skagit Skagit Snohomish Whatcom 05 - Stillaguamish Skagit Snohomish 06 - Island Island 07 - Snohomish King Snohomish 08 - Cedar-Sammamish King Snohomish 09 - Duwamish-Green King 10 - Puyallup-White King Pierce 11 - Nisqually Lewis Pierce Thurston 12 - Chambers-Clover Pierce 13 - Deschutes Lewis Thurston 14 - Kennedy-Goldsborough Mason Thurston 15 - Kitsap King Kitsap Mason 16 - Skokomish_Dosewallips Grays Harbor Jefferson Mason 17 - Quilcene-Snow Clallam Jefferson 18 - Elwha_Dungeness Clallam Jefferson 19 - Lyre-Hoko Clallam 20 - Soleduck-Hoh Clallam Jefferson 21 - Queets-Quinault Grays Harbor Jefferson 22 - Lower Chehalis Grays Harbor Mason Pacific 23 - Upper Chehalis Cowlitz Grays Harbor Lewis Pacific Thurston 24 - Willapa Grays Harbor Lewis Pacific 25 - Grays-Elochoman Cowlitz Lewis Pacific Wahkiakum 26 - Cowlitz Cowlitz Lewis Pierce Skamania Yakima 27 - Lewis Clark Cowlitz Skamania 28 - Salmon-Washougal Clark Skamania 29 - Wind-White Salmon Klickitat Skamania Yakima 30 - Klickitat Klickitat Yakima 31 - Rock-Glade Benton Klickitat Yakima 32 - Walla Walla Columbia Walla Walla 33 - Lower Snake Columbia Franklin Walla Walla 34 - Palouse Adams Franklin Lincoln Spokane Whitman 35 - Middle Snake Asotin Columbia Garfield Whitman 36 - Esquatzel Coulee Adams Franklin Grant 37 - Lower Yakima Benton Klickitat Yakima 38 - Naches Kittitas Yakima 39 - Upper Yakima Kittitas Yakima 40 - Alkali-Squilchuck Benton Chelan Kittitas Yakima 41 - Lower Crab Adams Douglas Grant Lincoln 42 - Grand Coulee Douglas Grant Lincoln 43 - Upper Crab-Wilson Adams Grant Lincoln Spokane 44 - Moses Coulee Douglas Grant 45 - Wenatchee Chelan 46 - Entiat Chelan 47 - Chelan Chelan Okanogan 48 - Methow Okanogan 49 - Okanogan Okanogan 50 - Foster Douglas Okanogan 51 - Nespelem Okanogan 52 - Sanpoil Ferry Okanogan 53 - Lower Lake Roosevelt Ferry Grant Lincoln 54 - Lower Spokane Lincoln Spokane Stevens 55 - Little Spokane Pend Oreille Spokane Stevens 56 - Hangman Spokane Whitman 57 - Middle Spokane Pend Oreille Spokane 58 - Middle Lake Roosevelt Ferry Stevens 59 - Colville Pend Oreille Stevens 60 - Kettle Ferry Okanogan Stevens 61 - Upper Lake Roosevelt Pend Oreille Stevens 62 - Pend Oreille Pend Oreille Stevens
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A  B  C  D  F  G  I  J  K  L  M  O  P  S  T  W   Y
County WRIA(s)(1) Adams 34, 36, 41, 43 Asotin 35 Benton 31, 37, 40 Chelan 40, 45, 46, 47 Clallam 17, 18, 19, 20 Clark 27, 28 Columbia 32, 33, 35 Cowlitz 23, 25, 26, 27 Douglas 41, 42, 44, 50 Ferry 51, 52, 53, 58, 60 Franklin 33, 34, 36 Garfield 35 Grant 36, 41, 42, 43, 44, 53 Grays Harbor 16, 21, 22, 23, 24 Island 6 Jefferson 16, 17, 18, 20, 21 King 7, 8, 9, 10, 15 Kitsap 15 Kittitas 38, 39, 40 Klickitat 29, 30, 31, 37 Lewis 11, 13, 23, 24, 25, 26 Lincoln 34, 41, 42, 43, 53, 54 Mason 14, 15, 16, 22 Okanogan 47, 48, 49, 50, 51, 52, 53, 60 Pacific 22, 23, 24, 25 Pend Oreille 55, 57, 59, 61, 62 Pierce 10, 11, 12, 15, 26 San Juan 2 Skagit 1, 3, 4, 5 Skamania 26, 27, 28, 29 Snohomish 3, 4, 5, 7, 8 Spokane 34, 43, 54, 55, 56, 57 Stevens 54, 55, 58, 59, 60, 61, 62 Thurston 11, 13, 14, 23 Wahkiakum 24, 25 Walla Walla 32, 33 Whatcom 1, 3, 4 Whitman 34, 35, 56 Yakima 26, 27, 29, 30, 31, 37, 38, 39, 40   Columbia River TMDL Projects Back to top of page

¹ The Department of Ecology and other state resource agencies frequently use a system of "Watershed Resource Inventory Areas" or "WRIAs" to refer to the state's major watershed basins.

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