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William Duvall is an experienced Air Quality Engineer with a career spanning over 15 years in various engineering firms. Currently serving at Yorke Engineering, LLC as an Air Quality Engineer since January 2024, William previously held the position of Senior Air Quality Engineer at ECORP Consulting, Inc. from March 2021 to January 2024. Prior experience includes work as an Air Quality Engineer at Leidos from November 2013 to March 2021, where responsibilities included management of air quality monitoring projects for the Ports of Long Beach and LA, as well as compliance projects for diverse clients. William’s engineering career began at SAIC, where duties involved air quality and energy projects from January 2008 to November 2013. William holds a Bachelor of Science degree in Environmental Engineering from San Diego State University, obtained between 2001 and 2007.