Liz Simmons Liz Simmons is a Principal Geologist and Technical Practice Leader for Environmental Site Characterization for Kleinfelder in the San Diego, California office. Liz has worked for Kleinfelder since 1998, and in the environmental field since 1984. Her extensive technical background includes numerous groundwater assessments, risk assessments, modeling, groundwater optimization, and litigation support for sites encompassing industrial facilities, landfills and surface impoundments, oil refinery and underground fuel storage sites, and superfund sites, both in the United States and abroad. As Technical Practice Leader, she is also responsible for providing on-going technical training to Kleinfelder personnel. Liz has been active in the ITRC since 2008, and has been involved with the Contaminated Sediments, Groundwater Statistics and Monitoring Compliance, and Geophysical Classification for Munitions Response workgroups. She earned a bachelor’s degree in geology from Brigham Young University in Provo, Utah in 1979, and underwent graduate studies in petroleum geology and geophysics at California State University in Long Beach from 1981-1984. Liz is a registered PG with the California Board for Professional Engineers, Land Surveyors and Geologists.