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Santee Cooper to conduct aerial treatments to control invasive plants in Lake Marion


MONCKS CORNER, S.C. — During the period Oct. 5-16, Santee Cooper will conduct helicopter treatments of EPA-approved aquatic herbicides targeting the invasive aquatic plants crested floating heart, water hyacinth and giant cutgrass in upper Lake Marion.

These applications should improve lake access for residential and commercial properties, restore recreational opportunities and help prevent the spread of these plants to other areas within the Santee Cooper Lakes system.

To notify boaters of spray operations, Santee Cooper employees will patrol the spray sites on airboats, post signage, and be present at public and commercial boat landings located near the targeted locations. Lake users are asked to avoid the following areas during these operations:

Calhoun County
Lowfalls Area (targeting giant cutgrass)

Clarendon County
Bee Tree Lake (targeting giant cutgrass)

Sumter County
Pack's Flats Woods (targeting crested floating heart and water hyacinth)

Questions concerning these operations can be directed to Santee Cooper's Analytical and Biological Services unit at 843-761-4078.

Santee Cooper is South Carolina's largest power provider, the largest Green Power generator and the ultimate source of electricity for 2 million people across the state. Through its low-cost, reliable and environmentally responsible electricity and water services, and through innovative partnerships and initiatives that attract and retain industry and jobs, Santee Cooper powers South Carolina. To learn more, visit