Harkner Flowage
Jackson County, Wisconsin53 acresView mapDirections
No nutrient or algae sampling on record from Wisconsin DNR for this lake.
- Impaired · Mercury
- 14 ft max depth
Harkner Flowage in Jackson County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Maximum depth: 14 ft. Surface area: 53 acres.
Harkner Flowage is a 53-acre lake in Jackson County, Wisconsin with a maximum depth of 14 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. Harkner Flowage is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
Whether Harkner Flowage 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 Harkner Flowage
These are the measurements Wisconsin DNR publishes for Harkner Flowage, 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.
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Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
14 ft
Surface area
53 acres
Shoreline
2.8 mi
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Fishing Harkner Flowage
EPA Impairment Status
Harkner Flowage 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 WI10026616 · Official waterbody report
Nearby Lakes in Jackson County
Frequently asked questions about Harkner Flowage
Where is Harkner Flowage?
- Harkner Flowage is a lake in Jackson County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Harkner Flowage?
- Harkner Flowage in Jackson County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Maximum depth: 14 ft. Surface area: 53 acres.
Is Harkner Flowage safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Harkner Flowage is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
How deep is Harkner Flowage?
- Harkner Flowage has a maximum depth of 14 feet. The lake covers 53 acres.
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Where this data comes from
Measurements for Harkner Flowage 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