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B

Neglige Lake

Lake County, MinnesotaLimited DataMesotrophic

Neglige Lake carries a solid B grade — strong on most parameters, with measurements that hold up well across the summer season.

The lake sits in the mesotrophic zone — the band where most well-managed Minnesota lakes fall. Neglige Lake is unusually deep for Minnesota at 58 ft, which buffers the lake against summer warming and helps the deep water stay oxygenated. Neglige Lake is small — 32 acres alongside 1.5 miles of shoreline — which makes it sensitive to even modest changes in watershed runoff or recreational pressure. Neglige Lake sits at rank 72 of 142 in Lake County, in the lower half of the local distribution.

Neglige Lake has no invasive species recorded in Minnesota state databases as of 2022, though prevention practices still apply at all access points. The lake's fish records list 1 species — a varied community without one dominant gamefish. No formal public access is documented at Neglige Lake — most use is by shoreline residents and their guests. 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, Minnesota DNR LakeFinder, last sampled 2022-08-16. Grade methodology: LakeGrade methodology.

Reviewed by LakeQuality Editorial Team · Updated

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Swimming Safety

Good for swimming, clear water with low algae levels

Water Quality Grade: B, Good

Good clarity, visible to about 11.3 ft. Trophic State Index: 42.

MetricValueGrade
Water Clarity (Secchi Depth)11.3 ftB
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)42Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth58 ft
Surface Area32.15 acres
Shoreline Length1.5 mi
Littoral Zone25%
Public AccessNo

Fish Species

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

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

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

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

Water Quality Trend: Declining

Based on 5 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Declining-0.679 m/yr5
See year-by-year chart →

Location

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County Ranking

Ranked #72 of 142 lakes in Lake County

Nearby Lakes in Lake County

DNR Fisheries Survey Summary

4 surveys on file from MN DNR Fisheries. Most recent: 2015-06-08 (Standard Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
Brook Trout28.830.7 lb
Rainbow Trout10.501.87 lb

CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE = more abundant in standardized sampling.

Length Distributions

Number of fish caught at each inch class in the most recent survey that recorded lengths. Red dashed line marks an approximate trophy threshold for that species.

Brook Trout

41 fish · 620 in · 2015-06-08
1050trophy 1868101214161820

Rainbow Trout

3 fish · 1821 in · 1995-06-26
10trophy 1818192021

From the 2015-06-08 survey

Neglige Lake is located within the Boundary Waters Canoe Area Wilderness (BWCAW) within the Superior National Forest and is a non-motorized lake. It is approximately 26 miles northeast of Ely and is accessible by a 300 yard portage from Trader Lake. The maximum depth on this 28 acre lake is 58 feet and the water color…

Source: MN DNR LakeFinder Fisheries Lake Survey

DNR Reports & Resources

Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Neglige Lake. 2 reports on file.

EPA Impairment Status

Neglige Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).

Causes of impairment

Mercury

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit MN38-0491-00 · Official waterbody report · Matched by proximity (1.01 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

Lake details from Minnesota DNR LakeFinder

Most recent sample: 2022-08-16

Monitoring stations: 2