The Riverdale CSA depends on its members for the site to run well and so requires all shareholders, including those who purchase half shares or split a share with another member, to volunteer approximately five hours per season at the Riverdale distribution site on pick-up days. Shifts are: 2-3:15 pm, 2 to 4:45 pm, 4:30 to 7:15 pm, and 6:30 to 8 pm (this last shift requires a car).  Prior to the start of the CSA season, the site manager will ask all members to select their shifts.