Mr. Etchells is a professional geologist and hydrogeologist with over two decades of experience assisting clients in managing environmental risks associated with ownership, transfer, or operation of commercial, industrial, and waste disposal properties. His particular technical expertise involves aspects of groundwater science and engineering relevant to contaminated sites and landfills, including supervision and conduct of subsurface data acquisition, remedial design and implementation, conceptual site model development, aquifer testing, extraction well design, groundwater quality evaluation and treatment, statistical analysis, predictive modeling, and contaminated soil and groundwater remediation design. He is responsible for designing analytical, geotechnical, and hydrogeological data collection programs to complete subsurface assessment and remediation. He has prepared subsurface assessment documents, property mitigation plans, vapor intrusion risk assessment documents, soil management plans, aquifer characterization documents, conceptual site models, and groundwater remedial design and implementation documents.
He has experience with several environmental regulatory entities, including the County of San Diego Department of Environmental Health (DEH), the California State Water Quality Control Board (SWQCB), including Santa Ana/San Diego/Lahontan Regional Water Quality Control Boards (RWQCBs), and the Department of Toxic Substances Control (DTSC).