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C

Kennedy Lake

Becker County, MinnesotaEutrophic

Kennedy Lake sits at a C on the grading scale — not impaired, not pristine, with summer measurements that vary year to year. With clarity and phosphorus scored, the sub-grades cluster within a letter of each other, pointing to stable conditions rather than one specific stressor.

Eutrophic conditions are the baseline here: clarity drops noticeably in late summer, and dissolved oxygen near the bottom can become a concern. The lake's maximum depth is not yet documented in state morphometric records — context for its physical structure remains limited. The lake's surface area is not consistently recorded across state datasets — physical context remains partial. Kennedy Lake ranks 77 of 93 in Becker County — at the lower end of the locally monitored distribution.

No invasive species are currently listed at Kennedy Lake — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Kennedy Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. The lake lacks a documented public access point, so visitor use is limited. 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 2022-09-22. Grade methodology: LakeGrade methodology.

Reviewed by LakeQuality Editorial Team · Updated

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Swimming Safety

Generally safe for swimming, moderate water quality

Water Quality Grade: C, Fair

Moderate clarity, visible to about 7 ft. Phosphorus level: 35 µg/L. Trophic State Index: 52.

MetricValueGrade
Water Clarity (Secchi Depth)7 ftC
Phosphorus35 µg/LC
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)52Eutrophic

High nutrients, frequent algae, reduced clarity

Water Quality Trend: Improving

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

MetricTrendChange/YearYears
Water Clarity Stable-0.03 m/yr2
Phosphorus Improving-15 µg/L/yr2

Location

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County Ranking

Ranked #77 of 93 lakes in Becker County

Cleaner Lakes Within 30 Miles

Kennedy Lake holds Grade C. 5 nearby lakes hold higher grades.

See full comparison →

Nearby Lakes in Becker County

State Parks Near Kennedy Lake

EPA Impairment Status

Kennedy 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 MN03-0387-02 · Official waterbody report · Matched by proximity (2.26 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

Most recent sample: 2022-09-22

Monitoring stations: 1