The Petawa Service Project (PSP) is a week-long summer project in which high school girls in grades 9 and 10 give themselves to those in need. This is done in a variety of ways including helping in nursing homes, food pantries, and more.  During the week-long project, PSP participants reside at Petawa Residence  at 1331 N. Astor Street. Residence staff provides supervision and support during their stay at Petawa.

The combination of service work and fun allows for personal growth and the development of deep friendships. In addition the girls have a chance to grow spiritually through daily Mass, leadership talks, and time for personal prayer.