6-7:30 p.m. – The City of Dunwoody Sustainability Commission and the Upper Chattahoochee Riverkeepers invite the community to learn about rain harvesting and water conservation. Participants receive a 60-gallon rain barrel and will be helped with the assembly. Reservations required; space is limited to 25 people per class. $40. Don’t forget to drive a vehicle that can carry your rain barrel home. Dunwoody City Hall, (Municipal Court Room), 41 Perimeter Center East, Dunwoody, 30346. Call 678-382-6700 or 404-352-9828 for details or register at: http://chatta-hoochee.org.