Silver Lake
Snohomish County, Washington99 acresView mapDirections
No nutrient or algae sampling on record from Washington Ecology for this lake.
- Impaired · Mercury
- 51 ft max depth
Silver Lake in Snohomish County, Washington has water-quality measurements published by Washington Ecology, shown here as reported. Maximum depth: 51 ft. Surface area: 99 acres.
Silver Lake is a 99-acre lake in Snohomish County, Washington with a maximum depth of 51 feet (24-foot average).
Source: EPA Water Quality Portal sampling records, WA Ecology. Methodology: how these readings are compared.
What Silver Lake is good for
From access and monitoring records, not editorial picks.
- Deep water51 ft surveyed max depth
Swimming conditions
No readingBacteria advisory
Nutrient and algae readings are not a swimming clearance. Silver Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, nuisance exotic species, pathogens (E. coli, fecal), pCBs. Check local advisories before you swim.
Whether Silver Lake is safe to swim in today is a call for the Washington State Department of Ecology and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Silver Lake
These are the measurements Washington Ecology publishes for Silver Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. TSI undefined.
Ask about Silver Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
51 ft
Average depth
24 ft
Surface area
99 acres
Shoreline
1.9 mi
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Stays near Silver Lake
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Fishing Silver Lake
EPA Impairment Status
Silver Lake is officially listed as impaired under Clean Water Act §303(d) in the 2018 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life, Fish consumption, Recreation.
Source: EPA ATTAINS assessment unit WA17110012000365_001_001 · Official waterbody report
Nearby Lakes in Snohomish County
Frequently asked questions about Silver Lake
Where is Silver Lake?
- Silver Lake is a lake in Snohomish County, Washington. Its water-quality measurements are published by Washington Ecology and shown on this page as reported.
What is the water quality of Silver Lake?
- Silver Lake in Snohomish County, Washington has water-quality measurements published by Washington Ecology, shown here as reported. Maximum depth: 51 ft. Surface area: 99 acres.
Is Silver Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Silver Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, nuisance exotic species, pathogens (E. coli, fecal), pCBs. Check local advisories before you swim.
How deep is Silver Lake?
- Silver Lake has a maximum depth of 51 feet and an average depth of 24 feet. The lake covers 99 acres.
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Where this data comes from
Measurements for Silver Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database