Source of mysterious tar balls on Oregon Coast still unknown

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Source of mysterious tar balls on Oregon Coast still unknown

Officials in Oregon and Washington have still yet to determine the source of mysterious tar balls that have appeared on the Pacific Northwest coast over the past week.Samples of the sticky substance were seen as far north as Long Beach, Washington, all the way down to Yaquina Head, Oregon. They were first reported on May 19, when several tar balls were spotted around the mouth of the Columbia River by different state agencies.The Oregon Departme…