John LaChance has more than 30 years of experience in the assessment, design and implementation of remediation systems at hazardous waste sites, including 18 years working in in situ thermal remediation (ISTR). He has evaluated and worked on hundreds of sites in the United States, Brazil, China, Australia and several European countries. Mr. LaChance has also led research efforts on how to use sustainable energy and geothermal techniques to gently heat sites to speed up biological and abiotic reaction rates, and has been actively involved with the development and delivery of new methods and approaches for thermal remediation. He has authored several papers and presentations on ISTR and the hydrogeology of DNAPL sites, and is a co-founder of and presenter at ISTR workshops around the globe.