Seven Beaver Lake
St. Louis County, Minnesota1,421 acresView mapDirections
No nutrient or algae sampling on record from Minnesota PCA for this lake.
- Impaired · Mercury
- 5 ft max depth
Seven Beaver Lake in St. Louis County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 5.4 ft. Surface area: 1421 acres.
Seven Beaver Lake is a 1,421-acre lake in St. Louis County, Minnesota with a maximum depth of 5 feet.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder. Methodology: how these readings are compared.
What Seven Beaver Lake is good for
From access and monitoring records, not editorial picks.
- Big water1,421 acres
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Seven Beaver Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
Whether Seven Beaver 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 Seven Beaver Lake
These are the measurements Minnesota PCA publishes for Seven Beaver 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 Seven Beaver Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
5.4 ft
Surface area
1,421 acres
Shoreline
9.3 mi
The depth above comes from a bathymetric survey of this lake, not from a regional estimate.
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Fishing Seven Beaver Lake
EPA Impairment Status
Seven Beaver 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 MN69-0002-00 · Official waterbody report
Nearby Lakes in St. Louis County
Frequently asked questions about Seven Beaver Lake
Where is Seven Beaver Lake?
- Seven Beaver Lake is a lake in St. Louis County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Seven Beaver Lake?
- Seven Beaver Lake in St. Louis County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 5.4 ft. Surface area: 1421 acres.
Is Seven Beaver Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Seven Beaver Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
How deep is Seven Beaver Lake?
- Seven Beaver Lake has a maximum depth of 5.4 feet. The lake covers 1421 acres.
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Where this data comes from
Measurements for Seven Beaver 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