Besides, unknown quantities of the poison could be stored around the United States from decades ago, before production was regulated.
“If they shut me down, it’s not like it’s going to just go away,” Wigley said.
Homeland Security spokeswoman Valerie Smith said the agency is reviewing Compound 1080, but it lacks the authority to ban production.
DeFazio previously asked the Environmental Protection Agency to shut down Tull Chemical because of safety problems at the company and the danger of its product, but officials refused. Neighbors of the factory were not surprised.
Lea Cheatwood has lived about 150 yards from Tull Chemical for decades, but she did not know what the company made until the early 1990s, when a neighbor obtained a copy of an EPA audit that cited numerous safety problems at the small plant, about 50 miles east of Birmingham.
Tull Allen, Wigley’s grandfather, started Tull Chemical in 1956 after purchasing the process to make Compound 1080 from Monsanto Co., which had made the poison at a nearby plant that later became infamous for polluting Oxford and nearby Anniston with PCBs, or polychlorinated biphenyls.
Compound 1080 originally was developed as a rat poison in Nazi-controlled territory in the 1940s, and some research indicates that the Nazis considered using it to kill people in Holocaust death camps before deciding it was too dangerous for guards, said Brooks Fahy, executive director of the Oregon-based Predator Defense, which wants the poison outlawed.
The recipe made it to the United States, where the poison was used on rats and then at livestock ranches to kill coyotes and other predators.
Faced with complaints that the chemical was also killing eagles and other animals, the Nixon administration in 1972 banned the use of Compound 1080 for livestock protection. The Reagan administration reversed course in 1981, and the EPA said the poison could be registered for limited domestic use in poison-laced collars worn by sheep.
Government records show Tull Chemical closed for several years in the mid-1980s as the government considered whether to allow continued production of Compound 1080, but Wigley later reopened it. He reinforced the buildings and installed a chain-link fence topped by barbed wire after an EPA review noted inadequate security and other problems.
Wigley said he makes as much as five tons of the poison annually, with most of it being exported to New Zealand. He said his only U.S. customer is the Department of Agriculture, which said it uses less than four tablespoons of Compound 1080 annually in sheep collars. The collars kill coyotes by poisoning them when they bite an animal’s throat.
The poison collars are used in nine states, but the government said they only kill a couple dozen coyotes annually. It was once used in California, but voters there in 1998 approved a ballot resolution banning the use of Compound 1080 and another poison, sodium cyanide.
Environmentalists in New Zealand oppose the use of Compound 1080, which they claim kills slowly and painfully and can poison animals that feed on carcasses of its victims. Their protests are echoed in the United States by groups including Predator Defense, which got DeFazio involved in the issue.
Fahy has twice visited Oxford to gather information about Tull Chemical and Compound 1080.
“It’s so dangerous, there’s no legitimate use for it,” he said. “It is beyond belief that this place is operating and operating where it is.”
A locked gate blocks the entrance to Tull Chemical in Oxford, Ala., the only manufacturer of Compound 1080, a deadly poison opponents say poses terrorism and environmental risks.