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The heavy rain expected from Hurricane Florence is sparking concerns that water will flood hog manure pits, coal ash dumps and other industrial sites in North Carolina, creating a noxious witches' brew of waste that would threaten homes and drinking water supplies.

Computer models predict more than 3 feet of rain in the eastern part of the state, a fertile low-lying plain veined by brackish rivers with a propensity for escaping their banks. Longtime locals don't have to strain their imaginations to foresee what rain like that can do. It's happened before.

In September 1999, Hurricane Floyd came ashore near Cape Fear as a Category 2 storm that dumped about 2 feet of water on a region already soaked days earlier by Hurricane Dennis. The result was the worst natural disaster in state history, a flood that killed dozens of people and left whole towns under water, their residents stranded on rooftops.

The bloated carcasses of hundreds of thousands of hogs, chickens and other drowned livestock bobbed in a nose-stinging soup of fecal matter, pesticides, fertilizer and gasoline so toxic that fish flopped helplessly on the surface to escape it. Rescue workers smeared Vick's Vapo-Rub under their noses to try to numb their senses against the stench.

Florence is forecast to make landfall in the same region as a much stronger storm.

"This one is pretty scary," said Jamie Kruse, director of the Center for Natural Hazards Research at East Carolina University. "The environmental impacts will be from concentrated animal feeding operations and coal ash pits. Until the system gets flushed out, there's going to be a lot of junk in the water."

North Carolina has roughly 2,100 industrial-scale pork farms containing more than 9 million hogs -- typically housed in long metal sheds with grated floors designed to allow the animals' urine and feces to fall through and flow into nearby open-air pits containing millions of gallons of untreated sewage.

During Floyd, dozens of these lagoons either breached or were overtopped by floodwaters, spilling the contents. State taxpayers ended up buying out and closing 43 farms in flood plains.

To prepare for Florence, the North Carolina Pork Council says its members have pumped down lagoon levels to absorb at least 2 feet of rain. Low-lying farms have been moving their hogs to higher ground.

"Our farmers and others in the pork industry are working together to take precautions that will protect our farms, our animals and our environment," said Brandon Warren, the pork council's president and a hog farmer. "The preparations for a hurricane began long before the past few hours or days. Our farmers take hurricane threats extremely seriously."

The Environmental Protection Agency said Tuesday that it would be monitoring nine toxic-waste cleanup sites near the Carolinas coast for potential flooding.

More than a dozen such Superfund sites in and around Houston flooded last year in the aftermath of Hurricane Harvey, with spills of potentially hazardous materials reported at two.

Also of concern are more than two dozen coal ash pits operated by Duke Energy, the state's primary electricity provider. The gray ash that remains after coal is burned contains potentially harmful amounts of mercury, arsenic and lead.

Since power plants need vast amounts of water to generate steam, their unlined waste pits sit along lakes and rivers. Some of the pits were inundated during past storms, including during Floyd and Hurricane Matthew in 2016.

After a 2014 spill at a Duke plant coated 70 miles of the Dan River in toxic gray sludge, state regulators forced the Charlotte company to begin phasing out its coal ash pits by 2029. Because that work was already underway, wastewater levels inside the ash ponds have been falling, Duke Energy spokesman Bill Norton said Tuesday.

"We're more prepared than ever," he said.

Information for this article was contributed by Seth Borenstein and Alex Derosier of The Associated Press.

A Section on 09/12/2018

Print Headline: Overflows of manure, coal ash feared in flooding

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  • dph815
    September 12, 2018 at 7:08 a.m.

    The obvious liberal solution is to require everyone to move out of these flood prone areas

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