Swan Pond is a lake in Day County, South Dakota. Its water-quality measurements are published by SD DANR and shown on this page as reported.

Swan Pond

Day County, South Dakota99 acresView map Directions

No nutrient or algae sampling on record from SD DANR for this lake.

Area

99 acres

Surface area

Shoreline

1.8 mi

Measured length

Impaired · Algal growth

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Swan Pond in Day County, South Dakota has water-quality measurements published by SD DANR, shown here as reported. Surface area: 99 acres.

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Swan Pond is a 99-acre lake in Day County, South Dakota.

Source: EPA Water Quality Portal sampling records, SD DANR. Methodology: how these readings are compared.

Swimming conditions

No reading

Recreation use not supported

Nutrient and algae readings are not a swimming clearance. Swan Pond is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, mercury. Check local advisories before you swim.

Whether Swan Pond 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.

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Water quality measurements for Swan Pond

These are the measurements SD DANR publishes for Swan Pond, 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 Swan Pond

Answers come straight from the public measurements and survey records on this page.

Lake Details

Surface area

99 acres

Shoreline

1.8 mi

No bathymetric survey has been published for Swan Pond, so its depth is not documented here.

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Stays near Swan Pond

Compare lakeside cabins, hotels, and vacation rentals near Swan Pond in Day 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 Swan Pond

→ Swan Pond fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Swan Pond is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

Algal growthMercury

Designated uses not supporting: Aquatic life, Recreation.

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit SD-BS-L-WAUBAY_01 · Official waterbody report

Nearby Lakes in Day County

Phragmites Pond0.5 miView →Dahling Slough0.9 miView →Spring Lake1 miView →Hillebrands Lake1.4 miView →Minnewasta Lake1.9 miView →Rush Lake4.3 miView →

Frequently asked questions about Swan Pond

Where is Swan Pond?: Swan Pond is a lake in Day 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 Swan Pond?: Swan Pond in Day County, South Dakota has water-quality measurements published by SD DANR, shown here as reported. Surface area: 99 acres.
Is Swan Pond safe to swim in?: Nutrient and algae readings are not a swimming clearance. Swan Pond is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, mercury. Check local advisories before you swim.