It is with great sadness that we announce the passing of our friend and colleague, Bill Mason.

Bill came to work at GSI in May 2018, though we have known him for many years through his work at the Oregon Department of Environmental Quality, where he spent more than two decades as a groundwater hydrologist. At DEQ, he oversaw complex environmental cleanup projects and developed guidance for permitting for a number of DEQ programs.

Bill will be missed for his creative problem-solving, sense of humor, and dedication to making our planet a better place. Our thoughts go out to his family and many friends.