MaryEllen Joyce, of Harvard Pilgrim Health Care, helps paint murals in the Riverton Community School gymnasium. HPHC, along with volunteers from other organizations, did a number of service projects at Riverton Sept. 24.

Merideth McNeil is one of more than 40 volunteers who came to Riverton Community School for a handful of service projects. This is the fifth year Harvard Pilgrim Health Care has come into a Portland school for service work.David Grondin, left, is a parent of a Riverton student. Joel Richard, right, is a volunteer with the Portland-based organization Let’s Go!, which aims to prevent childhood obesity. The two, along with other volunteers, helped build a soda bottle greenhouse.