Deep Hole Lake
Forest County, Wisconsin95 acresView mapDirections
No nutrient or algae sampling on record from Wisconsin DNR for this lake.
- Impaired · Mercury
- 15 ft max depth
Deep Hole Lake in Forest County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Maximum depth: 15 ft. Surface area: 95 acres.
Deep Hole Lake is a 95-acre lake in Forest County, Wisconsin with a maximum depth of 15 feet.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water. Methodology: how these readings are compared.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Deep Hole Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
Whether Deep Hole Lake is safe to swim in today is a call for the Wisconsin Department of Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Deep Hole Lake
These are the measurements Wisconsin DNR publishes for Deep Hole 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 Deep Hole Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
15 ft
Surface area
95 acres
Shoreline
1.6 mi
Stays via Stay22
Stays near Deep Hole Lake
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Fishing Deep Hole Lake
EPA Impairment Status
Deep Hole 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: Fish consumption.
Source: EPA ATTAINS assessment unit WI10000612 · Official waterbody report
Nearby Lakes in Forest County
Frequently asked questions about Deep Hole Lake
Where is Deep Hole Lake?
- Deep Hole Lake is a lake in Forest County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Deep Hole Lake?
- Deep Hole Lake in Forest County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Maximum depth: 15 ft. Surface area: 95 acres.
Is Deep Hole Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Deep Hole Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
How deep is Deep Hole Lake?
- Deep Hole Lake has a maximum depth of 15 feet. The lake covers 95 acres.
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Where this data comes from
Measurements for Deep Hole 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