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Water Quality improvement projects

This page gives an overview of water quality improvement projects — including total maximum daily loads (TMDLs) —  in Washington. Projects are listed by county.

Each listing gives general information on waterbody, what pollutants are being dealt with, status of the project, and contact information in case you have questions.

Note:  This is a partial list of the water quality improvement projects. A full directory will be developed.

Get more information and data

Links provide more information by taking you to publications related to the project, or to the Water Quality Atlas, or to a project page as appropriate.
If more information is available about a project, it will be hyperlinked to the water body name. Use our Water Quality Assessment Query Tool to get data about water bodies.

Read reports on improvement projects

To see water quality improvement reports, see the Water Cleanup Plans in our publications database.

Water quality improvement projects

County

 

Waterbody Name Pollutant(s) Status TMDL Lead(s)

Adams

Lincoln

Whitman

Palouse

Dissolved oxygen
Fecal Coliform
PCBs
Temperature
Toxics

Under development

EPA approved

Has an implementation plan

Elaine Snouwaert
509-329-3503

Clark

East Fork Lewis River

Fecal Coliform
Temperature

Under development

Andrew Kolosseus
360-407-7543

Grays Harbor

North Ocean Beaches

Shellfish Closure Response

Fecal Coliform Bacteria
source investigation study

Under development

Donovan Gray
360-407-6407

King

Sammamish River and Tributaries

Dissolved Oxygen
Temperature

Under Development

Joan Nolan
425-649-4425

King

Soos Creek Subbasin Multiparameter

Aquatic Habitat
Dissolved Oxygen
Temperature

Under Development

Joan Nolan
425-649-4425

King Soos Creek Subbasin Bacteria Fecal Coliform Under Development Joan Nolan
425-649-4425

Mason

Cranberry, Johns, and Mill Creeks

Temperature

Under development

Betsy Dickes
360-407-6296

Pend Oreille

Spokane

Stevens

Little Spokane River

Dissolved Oxygen
pH

Under development

Elaine Snouwaert
509-329-3503

Pierce

Clover Creek

Dissolved Oxygen
Fecal Coliform
Temperature

Water Quality Assessment project

Under development

Donovan Gray
360-407-6407

Skagit

Padilla Bay

Fecal coliform

Under development

Danielle DeVoe
425-649-7036

Snohomish

French and Pilchuck Creeks

Dissolved Oxygen
Temperature

Under development

Heather Khan
425-649-7003

Spokane Hangman Creek Fecal Coliform
Temperature
Turbidity
Approved
Implementation plan sent to EPA
Elaine Snouwaert
509-329-3503

Spokane

Spokane River

Dissolved Oxygen
PCB

 

Toxics

 

Karin Baldwin
509-329-3601

Adriane Borgias
509-329-3515

Thurston

Deschutes River and tributaries

Dissolved Oxygen
Fecal Coliform
pH
Sediment
Temperature

Submitted to EPA for approval

Leanne Weiss
360-407-0243

Thurston

Deschutes Watershed: Budd Inlet

Dissolved Oxygen
Phosphorus

Under development

Leanne Weiss
360-407-0243

Thurston

Henderson Inlet

Dissolved Oxygen
Fecal Coliform
pH
Temperature

EPA approved

Has an implementation plan

Donovan Gray
360-407-6407

Whatcom Lake Whatcom Watershed Multiparameter Dissolved Oxygen
Fecal Coliform
Phosphorus
EPA approved Steve Hood
360-715-5211

Yakima

Mid-Yakima Basin

Bacteria

Under development

Greg Bohn
509-454-4174

Yakima

Yakima River Basin

Toxics

Under development

Jane Creech
509-454-7860