Click Here for PFHS Catalog-Welcome to Potomac Falls High School Library Media Center571-434-3200Hours : Open 8:30 a.m.-4:30 p.m. - Monday through FridayStaffMr. Andy Hawk ~ Library Media SpecialistMrs. Donna Russell - Library Media SpecialistMs. Emma Pareja-Lecaros ~Library AssistantCirculation PolicyCheckout is by student ID #. Books may be checked out for a 3-week period.Pass Requirements- No passes are needed to use the library before or after school.- You must have an E-pass to enter the library from anywhere in the building, especially during lunch.