Indian Slough
Roberts County, South Dakota29 acresView mapDirections
SD DANR publishes the water-quality measurements for Indian Slough. Here is what has been measured.
- Limited data
Indian Slough in Roberts County, South Dakota has water-quality measurements published by SD DANR, shown here as reported. Chlorophyll-a (algae): 136.1 µg/L. Surface area: 29 acres.
Indian Slough is a 29-acre lake in Roberts County, South Dakota.
Source: EPA Water Quality Portal sampling records, SD DANR, last sampled 2017-07-25. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Indian 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 Indian Slough
These are the measurements SD DANR publishes for Indian 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. Chlorophyll-a 136.1 µg/L.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | 136µg/L | Measured, not scored The green pigment in algae — a direct measure of how much algae is in the water. |
Ask about Indian Slough
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
29 acres
Shoreline
1.3 mi
No bathymetric survey has been published for Indian Slough, so its depth is not documented here.
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Frequently asked questions about Indian Slough
Where is Indian Slough?
- Indian Slough is a lake in Roberts 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 Indian Slough?
- Indian Slough in Roberts County, South Dakota has water-quality measurements published by SD DANR, shown here as reported. Chlorophyll-a (algae): 136.1 µg/L. Surface area: 29 acres.
Is Indian 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 Indian Slough come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.