South Slough
Deuel County, South Dakota250 acresView mapDirections
No nutrient or algae sampling on record from SD DANR for this lake.
South Slough in Deuel County, South Dakota has water-quality measurements published by SD DANR, shown here as reported. Surface area: 250 acres.
South Slough is a 250-acre lake in Deuel County, South Dakota.
Source: EPA Water Quality Portal sampling records, SD DANR. 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 South Slough is safe to swim in today is a call for the South Dakota Department of Agriculture and Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for South Slough
These are the measurements SD DANR publishes for South 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 South Slough
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
250 acres
Shoreline
3.6 mi
No bathymetric survey has been published for South Slough, so its depth is not documented here.
Stays via Stay22
Stays near South Slough
Compare lakeside cabins, hotels, and vacation rentals near South Slough in Deuel County, South Dakota — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
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Fishing South Slough
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Frequently asked questions about South Slough
Where is South Slough?
- South Slough is a lake in Deuel County, South Dakota. Its water-quality measurements are published by SD DANR and shown on this page as reported.
What is the water quality of South Slough?
- South Slough in Deuel County, South Dakota has water-quality measurements published by SD DANR, shown here as reported. Surface area: 250 acres.
Is South 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 South Slough come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.