The Bay Circuit Trail is a 230 mile nearly continuous trail;
Tewksbury and Billerica are its biggest gap. The Bay Circuit Alliance, of which
Billerica is a member, coordinates trail projects in partnership with the
Appalachian Mountain Club: http://www.baycircuit.org/volunteer/. This may not
seem the best time for the actual work, but it is the perfect time to start
planning!
For the less outdoorsy student, the Middlesex Canal
Association would gladly receive / offer 20 hours of community service at their
museum in Billerica at 71 Faulkner Street: A receptionist to welcome visitors
and ask them to sign in, and some administrative tasks like data-entrees and such. The museum operates a docent
program manned by committed Board Directors on Saturdays and Sundays, noon – 4
PM. For a student with interest in American history this would be a rewarding
experience: http://www.middlesexcanal.org/