Earl Crapps has been an Environmental Program Specialist in the Contaminated Sites Program for the Alaska Department of Environmental Conservation (ADEC) in Anchorage, Alaska, since 2003. He is responsible for all chemistry-related issues for the Contaminated Sites Program, guidance documents and regulatory revisions. Earl was one of the primary authors of the program’s Draft Guidance on Multi-Incremental Soil Sampling (March 2009) and remains the point of contact for all contaminated site projects involving its use. Prior to joining ADEC, Earl worked for over 12 years at local analytical laboratories and environmental consulting firms, as a Chemist, Project Chemist, and Laboratory Manager. He performed and reported a variety of environmental analysis according to state and federal methodologies and was responsible for the evaluation and validation of environmental laboratory data. Earl has been an ITRC Incremental Sampling Methodology (ISM) team member since its inception in 2009 and is the lead for Chapters 5 and 6 of the technical regulatory guidance document. Earl was born and raised in Anchorage, Alaska. He earned his bachelor’s degree in biology, with minors in chemistry and mathematics, from Spring Hill College, in Mobile, Alabama in 1987.