Long Slough
Grant County, Wisconsin35 acresView mapDirections
No nutrient or algae sampling on record from Wisconsin DNR for this lake.
Long Slough in Grant County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Surface area: 35 acres.
Long Slough is a 35-acre lake in Grant County, Wisconsin.
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. Check local advisories before you swim.
Whether Long Slough 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 Long Slough
These are the measurements Wisconsin DNR publishes for Long Slough, 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 Long Slough
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
35 acres
Shoreline
3.3 mi
No bathymetric survey has been published for Long Slough, so its depth is not documented here.
Stays via Stay22
Stays near Long Slough
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Fishing Long Slough
Nearby Lakes in Grant County
Frequently asked questions about Long Slough
Where is Long Slough?
- Long Slough is a lake in Grant County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Long Slough?
- Long Slough in Grant County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Surface area: 35 acres.
Is Long Slough safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
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Where this data comes from
Measurements for Long Slough come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.