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LakeQuality
A

Schnur Lake

Price County, WisconsinOligotrophic

Schnur Lake earns an A — water clarity, phosphorus, and chlorophyll-a all rate among the best monitored waters in Price 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. Schnur Lake reaches 27 ft at its deepest point — typical for Wisconsin mid-sized lakes, with seasonal stratification but limited cold-water refuge. Schnur Lake covers 154 acres alongside partial shoreline records — a mid-sized water that supports a working fishery without being so large that conditions diverge between basins. Schnur Lake ranks 4 of 26 in Price County, putting it in the upper tier of locally monitored lakes.

No invasive species are currently listed at Schnur Lake — the lake remains off the Wisconsin infested-waters roster. The fishery includes walleye alongside the lake's other 6 documented species — a notable draw for Wisconsin anglers. 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 2025-08-26. 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 31.2 ft down. Phosphorus level: 17.1 µg/L. Trophic State Index: 36.

MetricValueGrade
Water Clarity (Secchi Depth)31.2 ftA
Phosphorus17.1 µg/LA
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)36Oligotrophic

Low nutrients, clear water, excellent for swimming

Lake Details

CharacteristicValue
Maximum Depth27 ft
Surface Area154 acres

Fish Species

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

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

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

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

Water Quality Trend: Stable

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

MetricTrendChange/YearYears
Water Clarity Stable+0.088 m/yr7
Phosphorus Stable+0.3 µg/L/yr6
See year-by-year chart →

Location

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County Ranking

Ranked #4 of 26 lakes in Price County

Nearby Lakes in Price County

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. Monitored by volunteers since 2000. 11 stations on file (most recent sample 2025).

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

Fish Species (DNR-rated)

Walleye(Abundant)Musky(Common)Panfish(Common)Northern Pike(Common)Largemouth Bass(Present)Smallmouth Bass(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: 2025-08-26

Monitoring stations: 1