HAMPDEN CHARTER SCHOOL OF SCIENCE (HCSS). Hampden Charter School of Science (HCSS) is a college-preparatory public charter school serving students in Hampden County and the surrounding communities. HCSS operates two campuses in a technology-rich learning environment. High School (Grades 9–12) – Chicopee. Middle School (Grades 6–8) – West Springfield. MISSION. The mission of Hampden Charter School of Science is to provide a rigorous, college-focus...
