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The U.S. Supreme Court on Monday grilled attorneys about an interpretation of the Clean Water Act that would allow Coeur Alaska to deposit mine tailings in Lower Slate Lake.
The Kensington mine is on hold until the decision, which the court has until June to release. The mine's permits were invalidated after the 9th Circuit Court of Appeals agreed with three environmental conservation groups that the permits violated the act. The groups that oppose dumping mine tailings are the Southeast Alaska Conservation Council, the Juneau Group of the Sierra Club and Lynn Canal Conservation.
"We're preparing to move forward with construction of the tailings dam upon a favorable decision," said spokesman Tony Ebersole of Coeur d'Alene Mines Corp., parent company of mine operator Coeur Alaska Inc., after the arguments. "Our actions in terms of what we've been doing up to this point speaks to our commitment to Kensington."
But the company won't say what happens if it loses. Last year, Coeur was applying for a permit for an upland tailings facility, which environmentalists liked. It pulled out of that permitting process in September, and now is relying on a favorable decision from the court.
Until Coeur cancelled that process, environmentalists and mine officials had both touted their discussions, but whether they will keep talking is uncertain. Coeur met with environmentalists in early December but no agreements were made, said Rob Cadmus, water quality and mining organizer for the Southeast Alaska Conservation Council.
About 40 workers are now employed, but the mine could employ about 300 when in production.
Juneauites at the court Monday included Randy Wanamaker, who has worked to ensure Coeur hires Alaska Natives.
"This is employment for people who need jobs," he said. "All the environmental issues have been properly addressed."
Fill vs. discharge
Environmental groups sued over how the federal government should regulate the mine's tailings, or the ground-up waste rock that's left over after metals are removed.
Is it wastewater discharge from the ore-removal process, or is it fill?
If it's discharge, it can't go in the 23-acre lake. The U.S. Environmental Protection Agency has a rule that prohibits depositing wastewater from the gold milling process into U.S. waters.
But if it's fill, it's subject to less strict regulation by the U.S. Army Corps of Engineers and will be allowed in the lake, which is how the Corps treated it.
Earthjustice attorney Tom Waldo, representing the environmental groups, says tailings are both. They're fill because of all the solid material, but that doesn't exempt them from the effluent limits.
The federal government and Coeur, supported by the state of Alaska, say it's fill, period.
The government also argues that the agencies know best how to interpret their own laws, and the court ought to defer to them.
A lively debate
The justices' questions went into the weeds of how the regulations work, as well as the practical context of the mine's alternatives, or what would happen to Lower Slate Lake and other lakes.
Representing the federal government, Solicitor General Gregory Garre repeatedly referred to Lower Slate Lake as an "impoundment area."
"If it's proper to do what they're doing here, then the lake in the middle of the Everglades is an impoundment area, or a Great Salt Lake is an impoundment area," said Justice David Souter.
"This is a long way from a settling pond," Souter added.
Justices also asked about the alternatives.
"What is your solution, closing down the mine?" asked Justice Antonin Scalia of Waldo.
"No, no, no," said Waldo. The environmental groups, as well as EPA, he said, preferred mine tailings be stored in the uplands.
They also debated tailings terminology. Coeur's attorney, Ted Olson, called them "sand," while Waldo called them a "toxic slurry."
"It's inert material," Olson said. "It (is) not changing the chemical composition. It is not hurting the water quality."
Replied Souter: "But it's going to kill every living creature in the lake, right?"
Chief Justice John Roberts asked what, exactly, would be killed. The lake has about 1,000 Dolly Varden char in it, plus assorted invertebrates and plants.
"All the fish, there are a thousand fish in this lake, right?" asked Chief Justice John Roberts. "And those aren't endangered fish; there are millions of them somewhere else, right?"
Both sides said they were optimistic after the arguments.
"It was a lively argument, and I think it went well," Waldo said.
Quotes from the arguments were taken from the transcripts, which are subject to final review. Read the full transcript online at www.supremecourtus.gov/oral_arguments/argument_transcripts.html . The case is Coeur Alaska, Inc. v. Southeast Alaska Conservation Council.
• Contact reporter Kate Golden at 523-2276 or e-mail email@example.com.