The Supreme Court yesterday made several business-related decisions. It:

Refused to exempt the mining industry from some federal environmental rules for treating, storing and disposing of hazardous waste.

The court, without comment, rejected an appeal by the American Mining Congress and a mining company, Solite Corp. The two challenged a 1987 decision by the Environmental Protection Agency to apply the hazardous waste regulations to the mining industry.

The industry said it should be exempt under a 1980 law called the Bevill Amendment, which temporarily excluded some solid wastes from EPA rules until the agency could complete a study.

The U.S. Circuit Court of Appeals here ruled last year that the EPA did not exceed its power in enforcing the regulations for the mining industry.

The case is American Mining Congress v. Environmental Protection Agency.

Refused to free Communications Satellite Corp. from having to refund $38.8 million to its customers. The court, without comment, rejected arguments by Comsat that the Federal Communications Commission exceeded its authority in ordering the refunds.

The case is Communications Satellite Corp. v. FCC.

Refused to reinstate a $1.4 million lawyer fees award Royal Crown Cola won and then lost for its 1986 challenges to two proposed mergers of soft drink companies. The court, without comment, let stand a ruling that Royal Crown is not entitled to be reimbursed for the lawyer fees it incurred in fighting the later-aborted mergers.

The case is Royal Crown Cola v. Coca-Cola Co.

Refused to revive a 14-year-old lawsuit by a Texas oil refinery's black employees who say they are victims of racial discrimination. The court, without comment, left intact a ruling that dismissed the suit against a union and Gulf Oil Corp.

The case is Bernard v. Gulf Oil.

Left intact an $8 million antitrust award against Blue Cross and Blue Shield of Kansas. The justices, without comment, rejected arguments that the medical insurance company was trying only to cut costs, not interfere with competition, when it ended a contract with the largest hospital in Wichita.

The case is Blue Cross v. Reazin.

Agreed to decide whether Secretary of Labor Elizabeth Dole or a safety and health review board has the last word on what federal regulations require for on-the-job safety.

The case is Dole v. Occupational Safety and Health Review Commission.