F

Eastern Stump Lake

Nelson County, WisconsinEutrophic

Eastern Stump Lake is a productive, nutrient-rich eutrophic lake in Nelson County, ND. Water quality is graded F based on 3 sampling years through 2023. Compared to the 8 other monitored lakes in Nelson County, Eastern Stump Lake ranks #8 for water quality.

Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2023-10-11. Grade methodology: LakeGrade methodology.

Swimming Safety

Avoid swimming, very poor water quality, potential algae toxins

Water Quality Grade: F, Very Poor

Murky, only visible to about 4.7 ft. Phosphorus level: 142 µg/L. Chlorophyll-a: 39.1 µg/L. Trophic State Index: 66.

Metric	Value	Grade
Water Clarity (Secchi Depth)	4.7 ft	D
Phosphorus	142 µg/L	F
Chlorophyll-a (Algae)	39.1 µg/L	F
Trophic State Index (TSI)	66	Eutrophic

High nutrients, frequent algae, reduced clarity

Location

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County Ranking

Ranked #8 of 9 lakes in Nelson County

Cleaner Lakes Within 30 Miles

Eastern Stump Lake holds Grade F. 5 nearby lakes hold higher grades.

See full comparison →

Nearby Lakes in Nelson County

Whitman Dam Lake

Mcville Dam Lake

West Stump Lake

East Stump Lake

More Wisconsin Lake Rankings

Cleanest lakes in Wisconsin

Top 25 by overall water quality score

Best swimming lakes in Wisconsin

Grade A/B + low algae filter

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Panfish-rich, public access

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Full state directory

Other Grade F Lakes in Wisconsin

J. Clark Salyer Pool 357

Bottineau County · Clarity: 2.2 ft

Ramsey County · Clarity: 1.9 ft

Pierce County · Clarity: 0.3 ft

Sargent County · Clarity: 1.6 ft

Dead Colt Creek Dam Lake

Ransom County · Clarity: 3.3 ft

Foster County · Clarity: 1 ft

Eutrophic Lakes in Wisconsin

Lake Alice J. Clark Salyer Pool 357 E. A. Patterson Lake Lake Irvine

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2023-10-11

Monitoring stations: 1