Where is Great South Pond?

Great South Pond is a lake in Plymouth County, Massachusetts. Its water-quality measurements are published by MassDEP and shown on this page as reported.

Great South Pond

Plymouth County, Massachusetts284 acresView map Directions

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

Area

284 acres

Surface area

Shoreline

3.3 mi

Measured length

Impaired · Mercury

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Great South Pond in Plymouth County, Massachusetts has water-quality measurements published by MassDEP, shown here as reported. Surface area: 284 acres.

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Great South Pond is a 284-acre lake in Plymouth County, Massachusetts.

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

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Great South Pond is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, oxygen depletion (low DO). Check local advisories before you swim.

Whether Great South Pond is safe to swim in today is a call for the Massachusetts Department of Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Great South Pond

These are the measurements MassDEP publishes for Great South 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 Great South Pond

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

Lake Details

Surface area

284 acres

Shoreline

3.3 mi

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

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Stays near Great South Pond

Compare lakeside cabins, hotels, and vacation rentals near Great South Pond in Plymouth County, Massachusetts — 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.

Top-rated places to stay near Great South Pond

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Fishing Great South Pond

→ Great South Pond fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Great South Pond is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).

Causes of impairment

MercuryOxygen depletion (low DO)

Designated uses not supporting: Aquatic life, Fish consumption.

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

Source: EPA ATTAINS assessment unit MA94054 · Official waterbody report

Nearby Lakes in Plymouth County

Boot Pond0.7 miView →Little South Pond0.8 miView →Cooks PondHypereutrophic1.1 miView →Gunners Exchange Pond1.3 miView →Curlew Pond1.7 miView →Billington Sea2.2 miView →

Frequently asked questions about Great South Pond

Where is Great South Pond?: Great South Pond is a lake in Plymouth County, Massachusetts. Its water-quality measurements are published by MassDEP and shown on this page as reported.
What is the water quality of Great South Pond?: Great South Pond in Plymouth County, Massachusetts has water-quality measurements published by MassDEP, shown here as reported. Surface area: 284 acres.
Is Great South Pond safe to swim in?: Nutrient and algae readings are not a swimming clearance. Great South Pond is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, oxygen depletion (low DO). Check local advisories before you swim.