Sauk Lake
Todd County, Minnesota2,138 acresView mapDirections
No nutrient or algae sampling on record from Minnesota PCA for this lake.
- Impaired · Impaired biota (cause unknown)
- 61 ft max depth
Sauk Lake in Todd County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 61 ft. Surface area: 2138 acres.
Sauk Lake is a 2,138-acre lake in Todd County, Minnesota with a maximum depth of 61 feet.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder. Methodology: how these readings are compared.
What Sauk Lake is good for
From access and monitoring records, not editorial picks.
- Deep water61 ft surveyed max depth
- Big water2,138 acres
Swimming conditions
No readingRecreation use not supported
Nutrient and algae readings are not a swimming clearance. Sauk Lake is listed impaired under Clean Water Act §303(d) (IR 5) for impaired biota (cause unknown), mercury, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Whether Sauk 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 Sauk Lake
These are the measurements Minnesota PCA publishes for Sauk 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 Sauk Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
61 ft
Surface area
2,138 acres
Shoreline
21.8 mi
The depth above comes from a bathymetric survey of this lake, not from a regional estimate.
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Fishing Sauk Lake
EPA Impairment Status
Sauk Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life, Fish consumption, Recreation.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN77-0150-02 · Official waterbody report
Nearby Lakes in Todd County
Frequently asked questions about Sauk Lake
Where is Sauk Lake?
- Sauk Lake is a lake in Todd County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Sauk Lake?
- Sauk Lake in Todd County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 61 ft. Surface area: 2138 acres.
Is Sauk Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Sauk Lake is listed impaired under Clean Water Act §303(d) (IR 5) for impaired biota (cause unknown), mercury, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
How deep is Sauk Lake?
- Sauk Lake has a maximum depth of 61 feet. The lake covers 2138 acres.
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Where this data comes from
Measurements for Sauk 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