ERHS Staff Access Voice Mail by first dialing the school's main number: (562) 801-7500 Arrange by department... Administration Classified Counselor English History and Social Studies Math Physical Education Resource ROP Science Special Education World Languages Visual and Performing Arts All Departments 0 items found. Kristen Ross Department: ROP Email: kross@erusd.org 0 Phone Ext: Location: Link: Twitter: SportsERHS Edmodo: More... Advisor: Sports Medicine Club Classes:• ROP Sports Medicine