All non-emergency City of Pella offices will be closed Monday for Memorial Day. Monday’s trash routes will be held on Tuesday and Tuesday’s will be collected with regular service Wednesday. The Pella Aquatic Center is kicking off the outdoor pool season from 2-5 p.m. Aquatic Center Manager Alex Meyers says their indoor office is open from 9 a.m to 2 p.m. to purchase summer passes as well.