This story looks at pollution problems in river Columbia. Trail B.C., a smelter poured factory wastes into the Columbia river. This river flows across the border to Canada where the law regarding toxic wastes are not very stringent. Recent investigations revealed that the toxic wastes in the river are causing harm to the marine life in the area. This story investigates the U.S. Environmental Protection Agency's efforts to enforce restrictions on the smelter owner Teck Cominco Ltd. and force them to clean the area.