https://www.epa.gov/archive/epa/newsreleases/epa-awards-loudoun-valley-high-school-teacher-presidential-innovation-award.html
EPA awards Loudoun Valley High School teacher with Presidential Innovation Award | U.S. EPA News...
Dec 8, 2017 - PHILADELPHIA (August 17, 2015) --The U.S. Environmental Protection Agency has awarded Liam McGranaghan of Loudoun Valley High School in Purcellville, Va. with...
loudoun valley high school