Rising Waters From Tropical Storm Debby Put North Carolina Waste Sites at Risk
While rain pelted North Carolina and raised the threat of flooding across the state, officials were monitoring almost 70 dams and lagoons holding animal waste that had overflowed or were at risk of failing on Thursday, a number that more than doubled between the morning and the afternoon.At least 17 animal feeding operations were included in the monitoring. At least three had taken on enough water from Tropical Storm Debby to raise the waste within the lagoons to higher levels than permitted, although they were not necessarily overflowing, according to a North Carolina Department of Environmental Quality tracking website.Most of these animal operations are large-scale hog lagoons that mix the urine, feces and other waste from swine with water and anaerobic bacteria. The resulting slurry is stored in open-air pits that turn bright pink as the bacteria digest the sludge to reduce the odor.The pollution enters waterways when open pits overflow or when the earthen walls of a pit fail. Hog waste that has been sprayed on nearby fields can flow downstream if the fields are oversaturated, although spraying is not allowed when it’s raining. Dead animals, killed in the flooding, can also pollute waterways.North Carolina has issued permits to more than 2,500 animal facilities, the majority of which raise pigs. North Carolina is the nation’s third largest hog producer, and in 2023, the state’s Department of Agriculture and Consumer Services counted eight million swine on farms across the state.During Hurricane Florence in 2018, at least 110 lagoons released pig waste or were at imminent risk of doing so.Subscribe to The Times to read as many articles as you like.
Tropical Storm Debby brought intense rainfall and flooding threats to North Carolina on Thursday, highlighting the vulnerability of hog lagoons and wastewater treatment plants.
While rain pelted North Carolina and raised the threat of flooding across the state, officials were monitoring almost 70 dams and lagoons holding animal waste that had overflowed or were at risk of failing on Thursday, a number that more than doubled between the morning and the afternoon.
At least 17 animal feeding operations were included in the monitoring. At least three had taken on enough water from Tropical Storm Debby to raise the waste within the lagoons to higher levels than permitted, although they were not necessarily overflowing, according to a North Carolina Department of Environmental Quality tracking website.
Most of these animal operations are large-scale hog lagoons that mix the urine, feces and other waste from swine with water and anaerobic bacteria. The resulting slurry is stored in open-air pits that turn bright pink as the bacteria digest the sludge to reduce the odor.
The pollution enters waterways when open pits overflow or when the earthen walls of a pit fail. Hog waste that has been sprayed on nearby fields can flow downstream if the fields are oversaturated, although spraying is not allowed when it’s raining. Dead animals, killed in the flooding, can also pollute waterways.
North Carolina has issued permits to more than 2,500 animal facilities, the majority of which raise pigs. North Carolina is the nation’s third largest hog producer, and in 2023, the state’s Department of Agriculture and Consumer Services counted eight million swine on farms across the state.
During Hurricane Florence in 2018, at least 110 lagoons released pig waste or were at imminent risk of doing so.
Subscribe to The Times to read as many articles as you like.