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LakeQuality
D

Pelican Lake

Oneida County, WisconsinLimited DataEutrophic

On the scoring rubric Pelican Lake grades a D: clarity at 5.1 ft and phosphorus readings still being added keep it in the lower bracket for Oneida County. 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.

A TSI in the eutrophic range signals a lake doing what nutrient-loaded waters do — supporting an active algal community at the cost of clear water. The lake bottoms out at 39 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. With 3,545 acres of surface and partial shoreline records, Pelican Lake is a large water by Wisconsin standards — recreational pressure is spread across a long shoreline. Pelican Lake ranks 112 of 134 in Oneida County — at the lower end of the locally monitored distribution.

Eurasian watermilfoil has been documented at Pelican Lake, requiring shoreline management to keep dense mats from crowding native vegetation. The fishery includes walleye alongside the lake's other 6 documented species — a notable draw for Wisconsin anglers. 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 2024-10-03. Grade methodology: LakeGrade methodology.

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Swimming Safety

Swimming not recommended, poor water quality with high algae risk

Water Quality Grade: D, Poor

Murky, only visible to about 5.1 ft. Trophic State Index: 54.

MetricValueGrade
Water Clarity (Secchi Depth)5.1 ftD
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)54Eutrophic

High nutrients, frequent algae, reduced clarity

Lake Details

CharacteristicValue
Maximum Depth39 ft
Surface Area3,545 acres
Public AccessYes

Fish Species

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

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

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

Pelican Lake 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.

Banded Mystery SnailChinese Mystery SnailCurly-Leaf PondweedEurasian Water-MilfoilPurple LoosestrifeRusty Crayfish

Water Quality Trend: Improving

Based on 2 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+3.5 m/yr2

Recreation & Access

4
Boat Landings
Yes
Public Access

Location

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County Ranking

Ranked #112 of 134 lakes in Oneida County

Cleaner Lakes Within 30 Miles

Pelican Lake holds Grade D. 4 nearby lakes hold higher grades.

Nearby Lakes in Oneida County

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. 8 stations on file (most recent sample 2025).

DNR Assessment
Good · Shallow Lowland lake
Trophic State Index 61 (eutrophic) · 5-year average

Fish Species (DNR-rated)

Panfish(Abundant)Musky(Common)Largemouth Bass(Common)Smallmouth Bass(Common)Northern Pike(Common)Walleye(Common)

DNR Reports & Resources

Wisconsin DNR Fisheries scientists publish multi-year survey reports for Pelican Lake covering fish populations, stocking, water quality, and management. 3 reports on file.

EPA Impairment Status

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

Causes of impairment

Cause unknown

Source: EPA ATTAINS assessment unit WI10007401 · Official waterbody report

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

Public boat-access points from the USGS National Boat Ramps inventory

Most recent sample: 2024-10-03

Monitoring stations: 4

Where to stay near Pelican Lake

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

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