Crocodile Lake
Cook County, Minnesota292 acresView mapDirections
No nutrient or algae sampling on record from Minnesota PCA for this lake.
- Impaired · Mercury
- 17 ft max depth
Crocodile Lake in Cook County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 17 ft. Surface area: 292 acres.
Crocodile Lake is a 292-acre lake in Cook County, Minnesota with a maximum depth of 17 feet.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder. Methodology: how these readings are compared.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Crocodile Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
Whether Crocodile Lake is safe to swim in today is a call for the Minnesota Pollution Control Agency and the Minnesota DNR and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Crocodile Lake
These are the measurements Minnesota PCA publishes for Crocodile Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. TSI undefined.
Ask about Crocodile Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
17 ft
Surface area
292 acres
Shoreline
10 mi
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Fishing Crocodile Lake
EPA Impairment Status
Crocodile Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
Designated uses not supporting: Fish consumption.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN16-0119-00 · Official waterbody report
Nearby Lakes in Cook County
Frequently asked questions about Crocodile Lake
Where is Crocodile Lake?
- Crocodile Lake is a lake in Cook County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Crocodile Lake?
- Crocodile Lake in Cook County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 17 ft. Surface area: 292 acres.
Is Crocodile Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Crocodile Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
How deep is Crocodile Lake?
- Crocodile Lake has a maximum depth of 17 feet. The lake covers 292 acres.
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Where this data comes from
Measurements for Crocodile Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Lake details from Minnesota DNR LakeFinder