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.
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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.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 7 ft | C |
| Phosphorus | 35 µg/L | C |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 52 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Water Quality Trend: ↑ Improving
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | -0.03 m/yr | 2 |
| Phosphorus | ↑ Improving | -15 µg/L/yr | 2 |
Location
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.
- AFloyd LakeBecker County · mi · Two grade letters higher (C → A)
- ASands LakeBecker County · mi · Two grade letters higher (C → A)
- BMud LakeBecker County · mi · Higher grade (C → B)
- BLittle Floyd LakeBecker County · mi · Higher grade (C → B)
- BTamarac LakeBecker County · mi · Higher grade (C → B)
Nearby Lakes in Becker County
More Minnesota Lake Rankings
State Parks Near Kennedy Lake
Other Grade C Lakes in Minnesota
Eutrophic Lakes in Minnesota
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
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