Join Friends of the Mississippi River (FMR) for a Make and Take Rain Barrel Workshop on Tuesday, June 28, 6-7:30 p.m. at the Apple Valley Senior Center. A rain barrel is a simple, high-impact way to save water and protect water quality in lakes and rivers. The cost of materials for building your own rain barrel is only $35, thanks to donated barrels from Coca-Cola Refreshments of Eagan. Pre-registration is required.