Skip to main content
LakeQuality
C

Schoenick Lake at

Shawano County, WisconsinEutrophic

Schoenick Lake at earns a C — middle-of-the-pack water quality, with one or two parameters dragging the average down from a stronger grade. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

Eutrophic conditions are the baseline here: clarity drops noticeably in late summer, and dissolved oxygen near the bottom can become a concern. The lake bottoms out at 34 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. At 42 acres, Schoenick Lake at sits below the Wisconsin median: a small water where shoreline activity has an outsized effect on water quality. Schoenick Lake at ranks 22 of 27 in Shawano County — at the lower end of the locally monitored distribution.

Eurasian watermilfoil has been documented at Schoenick Lake at, requiring shoreline management to keep dense mats from crowding native vegetation. Bass fishing is part of the appeal: the species list runs to 3, anchored by largemouth and/or smallmouth bass. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2021-08-31. Grade methodology: LakeGrade methodology.

Watch Schoenick Lake at water quality

Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.

Swimming Safety

Generally safe for swimming, moderate water quality

Water Quality Grade: C, Fair

Murky, only visible to about 5 ft. Phosphorus level: 45.3 µg/L. Trophic State Index: 57.

MetricValueGrade
Water Clarity (Secchi Depth)5 ftD
Phosphorus45.3 µg/LC
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)57Eutrophic

High nutrients, frequent algae, reduced clarity

Lake Details

CharacteristicValue
Maximum Depth34 ft
Surface Area42 acres

Fish Species

Click a species to see every graded lake where it is documented.

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

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

Schoenick Lake at fishing regulations (limits, seasons, special rules)

Invasive & Introduced Species

Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.

Chinese Mystery SnailCurly-Leaf PondweedEurasian Water-Milfoil

Water Quality Trend: Declining

Based on 6 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Stable-0.1 m/yr6
Phosphorus Declining+2.03 µg/L/yr6
See year-by-year chart →

Location

Loading map…

County Ranking

Ranked #22 of 27 lakes in Shawano County

Cleaner Lakes Within 30 Miles

Schoenick Lake at holds Grade C. 4 nearby lakes hold higher grades.

See full comparison →

Nearby Lakes in Shawano County

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. 2 stations on file (most recent sample 2021).

Fish Species (DNR-rated)

Panfish(Present)Largemouth Bass(Present)Northern Pike(Present)

EPA Impairment Status

Schoenick Lake at is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

Nutrients (phosphorus, nitrogen)

Source: EPA ATTAINS assessment unit WI10000096 · Official waterbody report · Matched by proximity (0.53 km)

Data Sources

Water quality data from the EPA Water Quality Portal

Impairment status from EPA ATTAINS 303(d) database

Grading methodology based on Metropolitan Council standards

Fish and recreation data from Wisconsin DNR Lakes

Most recent sample: 2021-08-31

Monitoring stations: 1

Where to stay near Schoenick Lake at

Compare lakeside cabins, hotels, and vacation rentals near Schoenick Lake at in Shawano County, Wisconsin — live availability and prices for your trip.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.