ANACORTES, Wash. (AP) — The Northwest Clean Air Agency has issued a violation notice against the Shell Puget Sound Refinery for the release of emissions in August and September. The refinery may face a penalty because of the incidents. They impacted the surrounding community including the Swinomish Indian Tribal Community. The notice said two flaring events exceeded allowable, visible emissions for more than 5 minutes. The first was on Aug. 19, and the second on Sept. 29. The agency received 12 complaints and verified the presence of odors following the September incident. The refinery has until April 28 to respond. The agency will then decide whether to impose a penalty.