house grades nine through twelve. The Jefferson Building, the first dedicated home of Emmaus High School, was subsequently decommissioned, demolished in 1999, and replaced by Jefferson Elementary School. In 2005, a second major expansion of Emmaus High School was completed. In October 2015, Emmaus High School was placed on lockdown amid rumors of potential gun violence. In November 2018, a torrential rainstorm flooded the school, causing administrators to cancel five days of classes. Financial aid and assistance with clean up were provided by East Penn School District. The main office, auxiliary gym, wrestling room, 40 classrooms, and adjacent areas were impacted by stormwater. On December 17, 2021, Emmaus High School was placed under a cautionary lockdown due to a potential external threat after various threats had been made to schools across the country. Several threats were made by an Emmaus High School freshman student against the school's assistant principals and another student. After almost two hours in cautionary lockdown, students were dismissed in small groups under police supervision. The suspect, a 14-year-old female Emmaus High School student, was arrested the following day, on December 18, and charged with making terrorist threats. Academics Emmaus High School ranks in the top academic tier of Pennsylvania public high schools based on state testing results. In the 2008 Pennsylvania System of State Assessments, Emmaus High School ranked in the top five percent of all public high schools in the state in writing, the top 20 percent in reading, and the top 25 percent in mathematics. In 2007, the mean SAT score for Emmaus High School students was 1580. In 2013, Emmaus High School was named the top academically performing high school in Lehigh County, according to data released by the Pennsylvania Department of Education. As of 2022, 90% of East Penn School District teachers hold a master's degree or higher. The school's academic team has made several appearances at the national level, appearing three consecutive years (2003, 2004, and 2005) in the Panasonic Academic Challenge at Disney World and placing fifth nationally in the competition in 2003. In 2015 and 2018, the school's academic team qualified for participation in the National Academic Quiz Tournaments in Atlanta. Emmaus High School also holds the record for the most wins of any high school in Pennsylvania's Scholastic Scrimmage contest, an advanced academic quiz game televised on Pennsylvania PBS affiliates. Athletics Emmaus High School competes athletically in the