Calumet Montana Refining will be executing a plantwide evacuation test drill exercise twice on April 12 and wants to let community members know in advance to assure them that there is no emergency, per a press release. The Indianapolis-based company processes crude oil and produces fuel products including gasoline, diesel and jet fuel. The refinery is located at 1900 10th Street NE. The first evacuation test drill will be at 12 p.m. and the second drill at 7:30 p.m. and will involve a whistle that will blast for 20 seconds. This is part of Calumet’s planned unit shutdown and maintenance activities will begin on April 5 and are expected to last three weeks. The shutdown and startup activities will cause periods of flaring, and folks can expect increased traffic, especially noticeable around 6 a.m. and 6 p.m., on Smelter Avenue near the former Westgate Mall property.