 Much of the original Amador Valley High School building was demolished in 1968 leaving only the theatre to which a community fund raising effort restored . The following year , the school reached its maximum capacity , about 1 @,@ 895 students . To accommodate the larger student population , Dublin High School was founded . Both schools held classes on the Amador Valley campus during the 1968 – 69 school year . A continued influx of families to the Pleasanton region prompted the foundation of another high school , Foothill , in 1973 . 
