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LakeQuality
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West Alaska Lake

Kewaunee County, WisconsinOligotrophic

West Alaska Lake earns an A — water clarity, phosphorus, and chlorophyll-a all rate among the best monitored waters in Kewaunee 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. West Alaska Lake reaches 41 ft at its deepest point — typical for Wisconsin mid-sized lakes, with seasonal stratification but limited cold-water refuge. West Alaska Lake is small — 27 acres alongside partial shoreline records — which makes it sensitive to even modest changes in watershed runoff or recreational pressure. Within Kewaunee County's 4 graded lakes, West Alaska Lake ranks 3 — below the local median, though not at the bottom.

West Alaska Lake carries an invasive watermilfoil record — boat-launch decontamination and shoreline care matter more here than at uninfested lakes. The fishery is bass-led, with 3 documented species across the lake's records. Public access is available — the lake is on the Wisconsin DNR public-access list. 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 2025-09-25. 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 27.9 ft down. Phosphorus level: 14.1 µg/L. Trophic State Index: 36.

MetricValueGrade
Water Clarity (Secchi Depth)27.9 ftA
Phosphorus14.1 µg/LA
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)36Oligotrophic

Low nutrients, clear water, excellent for swimming

Lake Details

CharacteristicValue
Maximum Depth41 ft
Surface Area27 acres
Public AccessYes

Fish Species

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

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

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

West Alaska Lake fishing regulations (limits, seasons, special rules)

Invasive Species

Curly-Leaf PondweedEurasian Water-MilfoilPurple Loosestrife

Water Quality Trend: Stable

Based on 7 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Stable+0.058 m/yr7
Phosphorus Stable0 µg/L/yr3

Recreation & Access

1
Boat Landings
Yes
Public Access

Location

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County Ranking

Ranked #3 of 4 lakes in Kewaunee County

Nearby Lakes in Kewaunee County

State Parks Near West Alaska Lake

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. Monitored by volunteers since 2016. 1 station on file (most recent sample 2025).

DNR Assessment
Good · Deep Seepage lake
Trophic State Index 47 (mesotrophic) · 5-year average

Fish Species (DNR-rated)

Panfish(Common)Largemouth Bass(Present)Trout(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: 2025-09-25

Monitoring stations: 1