Chester Lake
Cook County, MinnesotaLimited DataMesotrophic
Chester Lake comes in at a B on the grading rubric — a respectable showing for a Minnesota lake of its size and depth.
A TSI near 41 places Chester Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. A maximum depth of 35 ft puts Chester Lake in the middle of Minnesota's depth distribution. At 52 acres, Chester Lake sits below the Minnesota median: a small water where shoreline activity has an outsized effect on water quality. Among the 128 graded lakes in Cook County, Chester Lake sits at rank 53, above the county median.
Chester Lake has no invasive species recorded in Minnesota state databases as of 2023, though prevention practices still apply at all access points. The lake's fish records list 3 species — a varied community without one dominant gamefish. A documented public access point at Chester Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2023-08-23. Grade methodology: LakeGrade methodology.
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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 11.9 ft. Trophic State Index: 41.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 11.9 ft | B |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 41 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 35 ft |
| Average Depth | 14.2 ft |
| Surface Area | 51.97 acres |
| Shoreline Length | 1.5 mi |
| Littoral Zone | 56% |
| Public Access | Yes |
Fish Species
Click a species to see all Minnesota and Wisconsin lakes where it is found.
→ Best fishing times for Chester Lake (14-day solunar calendar)
→ Is it safe to eat fish from Chester Lake? (mercury & PFAS guide)
→ Chester Lake fishing regulations (limits, seasons, special rules)
Water Quality Trend: ↓ Declining
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.625 m/yr | 2 |
Location
County Ranking
Ranked #53 of 128 lakes in Cook County
Cleaner Lakes Within 30 Miles
Chester Lake holds Grade B. 2 nearby lakes hold higher grades.
Nearby Lakes in Cook County
More Minnesota Lake Rankings
State Parks Near Chester Lake
Other Grade B Lakes in Minnesota
Mesotrophic Lakes in Minnesota
DNR Fisheries Survey Summary
10 surveys on file from MN DNR Fisheries. Most recent: 2024-09-23 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| RBS | 35.77 | 0.03 lb |
| Fathead Minnow | 28.45 | — |
| BNS | 8.00 | — |
| CNM | 5.72 | — |
| White Sucker | 5.63 | 0.9 lb |
| Brown Trout | 3.24 | 1.59 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.
RBS
Fathead Minnow
White Sucker
Brown Trout
From the 2024-09-23 survey
Chester Lake is a small, 52-acre lake with a maximum depth of 35 ft and is located approximately 11 miles northwest of Hovland. Chester Lake lies within the Lake Superior North watershed, draining to Lake Superior via Portage Brook and the Pigeon River. There is a small carry-in access located on the north end of the…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Chester Lake. 4 reports on file.
- —Fisheries Lake Survey — ChesterFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Chester (1670)Aquatic Plant Report · MN DNR LakeFinder
- —Fish Stocking History — ChesterFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — ChesterPublic Water Access Sites · MN DNR LakeFinder
EPA Impairment Status
Chester 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 MN16-0033-00 · 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
Lake details from Minnesota DNR LakeFinder
Most recent sample: 2023-08-23
Monitoring stations: 1