Flat Lake
Campbell County, South Dakota113 acresView mapDirections
No nutrient or algae sampling on record from SD DANR for this lake.
Flat Lake in Campbell County, South Dakota has water-quality measurements published by SD DANR, shown here as reported. Surface area: 113 acres.
Flat Lake is a 113-acre lake in Campbell 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 Flat Lake 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 Flat Lake
These are the measurements SD DANR publishes for Flat 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 Flat Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
113 acres
Shoreline
1.8 mi
No bathymetric survey has been published for Flat Lake, so its depth is not documented here.
Stays via Stay22
Stays near Flat Lake
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Frequently asked questions about Flat Lake
Where is Flat Lake?
- Flat Lake is a lake in Campbell 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 Flat Lake?
- Flat Lake in Campbell County, South Dakota has water-quality measurements published by SD DANR, shown here as reported. Surface area: 113 acres.
Is Flat Lake 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 Flat Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.