Santee Cooper detects spill

Nonhazardous wastewater leaks into swampy area

Melissa Haneline
The Post and Courier

A diver makes his way to the shore of a slurry pond Friday at Santee Cooper's Winyah power plant. A leaking pipe caused limestone-laced water to spill from the pond.

Nonhazardous wastewater leaks into swampy area

GEORGETOWN — A broken pipe in a slurry pond at Santee Cooper's Winyah power plant caused as much as 200,000 gallons of limestone-laced water to spill into a swampy area next to the sprawling facility before crews contained the breach.

Santee Cooper officials said the wastewater in the pond isn't hazardous, and late Friday the area around the spill didn't appear to be affected. State health investigators took water samples but hadn't determined whether the spill caused any environmental damage.

Santee Cooper crews noticed a leak in the pond dike Thursday morning during a routine inspection of the dike system, said Phil Pierce, Santee Cooper vice president of fossil fuel and hydro generation.

The pond collects limestone slurry from the plant's sulfur dioxide air pollution scrubbers, Pierce said. A private company next to the plant uses the same material to make wallboard.

A 30-inch pipe used in the dike's construction during the 1980s apparently failed, he said. Once crews noticed water leaking from the dike, they contained most of it by piling rocks on it and diverting it into a ditched area. They pumped the spilled water back into the pond.

Nancy Cave of the Coastal Conservation League said the leak stands as a warning for the potential environmental damage that could occur from leaks from other, more dangerous waste-containment areas at coal-fired power plants.

Santee Cooper feels "this incident and its swift containment are proof that the utility's environmental policies and procedures are effective," said Mollie Gore, a public relations specialist with the utility.

Reach Tony Bartelme at 937-5554 or tbartelme@postandcourier.com.