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LakeQuality
A

Silver Lake

Washburn County, WisconsinLimited DataOligotrophic

Silver Lake earns an A — water clarity, phosphorus, and chlorophyll-a all rate among the best monitored waters in Washburn County. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

The lake's low TSI puts it in oligotrophic territory — the cleanest of the four trophic classes, but also the most vulnerable to nutrient-driven shifts. Silver Lake reaches 28 ft at its deepest point — typical for Wisconsin mid-sized lakes, with seasonal stratification but limited cold-water refuge. The lake's 188 acres and partial shoreline records put it in the mid-range bucket — large enough for varied use, small enough that watershed inputs reach the whole basin. Within Washburn County's 48 graded waters, Silver Lake sits at rank 4, near the top of the local distribution.

Silver Lake has at least one documented invasive species (Chinese Mystery Snail), so boaters and anglers should observe clean-drain-dry steps when leaving the lake. Walleye are documented at Silver Lake, one of 4 fish species on record for the lake. A documented public access point at Silver Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2024-05-24. Grade methodology: LakeGrade methodology.

Swimming Safety

Excellent for swimming, crystal clear water with minimal algae

Water Quality Grade: A, Excellent

Crystal clear, you can see 39.4 ft down. Trophic State Index: 24.

MetricValueGrade
Water Clarity (Secchi Depth)39.4 ftA
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)24Oligotrophic

Low nutrients, clear water, excellent for swimming

Lake Details

CharacteristicValue
Maximum Depth28 ft
Surface Area188 acres
Public AccessYes

Fish Species

Click a species to see all Wisconsin and Minnesota lakes where it is found.

→ Best fishing times for Silver Lake (14-day solunar calendar)

→ Is it safe to eat fish from Silver Lake? (mercury & PFAS guide)

Silver Lake fishing regulations (limits, seasons, special rules)

Invasive Species

Chinese Mystery Snail

Water Quality Trend: Stable

Based on 5 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Stable+0.2 m/yr5
See year-by-year chart →

Recreation & Access

1
Boat Landings
Yes
Public Access

Location

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County Ranking

Ranked #4 of 48 lakes in Washburn County

Nearby Lakes in Washburn County

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2024).

Fish Species (DNR-rated)

Panfish(Abundant)Largemouth Bass(Abundant)Northern Pike(Common)Walleye(Present)

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Fish and recreation data from Wisconsin DNR Lakes

Most recent sample: 2024-05-24

Monitoring stations: 1