Maltrud Lake
Polk County, Minnesota118 acresView mapDirections
No nutrient or algae sampling on record from Minnesota PCA for this lake.
- Impaired · Nutrients (phosphorus, nitrogen)
- 13 ft max depth
Maltrud Lake in Polk County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 13.1 ft. Surface area: 118 acres.
Maltrud Lake is a 118-acre lake in Polk County, Minnesota with a maximum depth of 13 feet (3-foot average).
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder. Methodology: how these readings are compared.
Swimming conditions
No readingRecreation use not supported
Nutrient and algae readings are not a swimming clearance. Maltrud Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Whether Maltrud 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 Maltrud Lake
These are the measurements Minnesota PCA publishes for Maltrud 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 Maltrud Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
13.1 ft
Average depth
3.3 ft
Surface area
118 acres
Shoreline
2.2 mi
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Fishing Maltrud Lake
EPA Impairment Status
Maltrud 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: Recreation.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN60-0236-00 · Official waterbody report
Nearby Lakes in Polk County
Frequently asked questions about Maltrud Lake
Where is Maltrud Lake?
- Maltrud Lake is a lake in Polk County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Maltrud Lake?
- Maltrud Lake in Polk County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 13.1 ft. Surface area: 118 acres.
Is Maltrud Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Maltrud Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
How deep is Maltrud Lake?
- Maltrud Lake has a maximum depth of 13.1 feet and an average depth of 3.3 feet. The lake covers 118 acres.
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Where this data comes from
Measurements for Maltrud 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