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Washington · Lake

Lake Washington

Is the fish you caught here safe to eat? Below is every consumption advisory on file for Lake Washington, by species and size, in plain English — plus what's legal to keep.

10 species with advisories · contaminants: PCBs, PFOS

What's safe to eat from Lake Washington

Brown Bullhead

PFOS

SizeWhoGuidance
All sizes General population Limit to one meal per week due to elevated PFOS.

Source: official advisory· updated 2026-09-22

Common Carp

PCBs

SizeWhoGuidance
All sizes General population Do not eat due to elevated PCB.

Source: official advisory· updated 2026-09-22

Cutthroat Trout

PFOS

SizeWhoGuidance
All sizes General population Do not eat due to elevated PFOS.

Source: official advisory· updated 2026-09-22

Largemouth Bass

PFOS

SizeWhoGuidance
All sizes General population Do not eat due to elevated PFOS.

Source: official advisory· updated 2026-09-22

Northern Pikeminnow

PCBs

SizeWhoGuidance
All sizes General population Do not eat due to elevated PCB.

Source: official advisory· updated 2026-09-22

Pumpkinseed

SizeWhoGuidance
All sizes General population Safe to eat as part of a regular diet.

Source: official advisory· updated 2026-09-22

Rainbow Trout

SizeWhoGuidance
All sizes General population Safe to eat as part of a regular diet.

Source: official advisory· updated 2026-09-22

Smallmouth Bass

PFOS

SizeWhoGuidance
All sizes General population Do not eat due to elevated PFOS.

Source: official advisory· updated 2026-09-22

Sockeye Salmon

SizeWhoGuidance
All sizes General population Safe to eat as part of a regular diet.

Source: official advisory· updated 2026-09-22

Yellow Perch

PCBs

SizeWhoGuidance
All sizes General population Limit to one meal per month due to elevated PCB.

Source: official advisory· updated 2026-09-22

How to prepare fish from Lake Washington

Some contaminants build up in fat and skin, so cleaning and cooking can lower your exposure. Others — mercury and PFAS — are in the muscle itself and trimming does nothing.

PCBs

  • Skin the fish — most of the contaminant sits in the fat just under the skin.
  • Trim the fatty areas away: the belly flap, the top of the back, and the dark lateral line down each side.
  • Cook on a rack — grill, broil, or bake — so the fat drips off the fillet.
  • Throw the drippings out; don't use them for soup, sauce, or chowder.
  • Choose smaller, younger fish — they've had less time to build it up.

Is it legal to keep?

These are Washington's statewide limits — a water-specific rule may override them. Always verify the current regulations before keeping a fish.

SpeciesSizeDaily limitOpen seasonKeep season
Largemouth Bass 5 Year-round Same as open
Smallmouth Bass 5 Year-round Same as open
Walleye Year-round Same as open
Rainbow Trout 5 Year-round Same as open
Channel Catfish 5 Year-round Same as open

Official rules: Washington — Washington DFW

Getting on the water

Access points from OpenStreetMap contributors.

About this water

State
Washington
Type
Lake
Location
47.6199, -122.2455
Advisory source
Washington State Dept. of Health — Fish Consumption Advisories