Mar. 5—BEMIDJI — A diesel spill spread through areas of downtown Bemidji on Thursday after a valve for a backup power generator failed. Just after 3 p.m. on March 4, the Bemidji Fire Department responded to a report of a large diesel spill in the alley behind 519 Beltrami Ave. NW in downtown Bemidji, according to a release sent from Bemidji Fire Chief Justin Sherwood. Upon arrival, .