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LakeQuality
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Planting Ground Lake

Oneida County, WisconsinLimited DataOligotrophic

On the LakeGrade rubric, Planting Ground Lake pulls an A: clarity at 17.2 ft and phosphorus readings still being added put it in the top bracket for Wisconsin. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.

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. A maximum depth of 37 ft puts Planting Ground Lake in the middle of Wisconsin's depth distribution. Planting Ground Lake covers 1,010 acres alongside partial shoreline records, large enough that conditions can vary meaningfully between bays. Within Oneida County's 140 graded waters, Planting Ground Lake sits at rank 9, near the top of the local distribution.

Planting Ground 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. 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 2020-09-22. 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 17.2 ft down. Trophic State Index: 36.

MetricValueGrade
Water Clarity (Secchi Depth)17.2 ftA
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)36Oligotrophic

Low nutrients, clear water, excellent for swimming

Lake Details

CharacteristicValue
Maximum Depth37 ft
Surface Area1.0K acres

Fish Species

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

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

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

Planting Ground Lake fishing regulations (limits, seasons, special rules)

Invasive Species

Chinese Mystery SnailPurple LoosestrifeRusty Crayfish

Water Quality Trend: Improving

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

MetricTrendChange/YearYears
Water Clarity Improving+0.216 m/yr7
See year-by-year chart →

Location

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County Ranking

Ranked #9 of 140 lakes in Oneida County

Nearby Lakes in Oneida County

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. 5 stations on file (most recent sample 2024).

DNR Assessment
Good · Deep Lowland lake
Trophic State Index 51 (eutrophic) · 5-year average

Fish Species (DNR-rated)

Musky(Common)Walleye(Common)Panfish(Present)Largemouth Bass(Present)Smallmouth Bass(Present)Northern Pike(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: 2020-09-22

Monitoring stations: 1