The mine had been approved by the agency in 1987, but the environmental groups appealed.
The group appealed the decision into the court system and continued the mailings.
A group of low-income parents represented by civil rights lawyers is appealing that decision.
In 1951 the group appealed to the public for support.
As of June 2009, five environmental and citizen groups were appealing the decision in the federal court.
The group has appealed, and officials have until Monday to respond.
Ms. Wolkenstein said that her group would also appeal today.
He said his group would appeal the decision, taking it to the Supreme Court, if necessary.
Mr. Perez said he did not know whether his group would appeal.
As a result these groups appealed to the government that this film should not be released.