State laboratory tests revealed this week that the substance creating an oil sheen in the Columbia River at Wenatchee is biodiesel. Spill investigators can now narrow their search for its source with a goal to keep it from getting into the river.
State laboratory tests revealed this week that the substance creating an oil sheen in the Columbia River at Wenatchee is biodiesel. Spill investigators can now narrow their search for its source with a goal to keep it from getting into the river.