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• Conducting professional development activities, presenting internal seminars, and presenting external short courses through the University of California Extension Service. Served as an expert witness in several legal cases involving disputes over hazardous waste issues. McLaren-Hart Environmental Engineering • Project manager for two Superfund sites involving remedial investigations, feasibility studies, risk assessments, and remedial action implementations. Responsible for all aspects of these projects, including technical direction, agency negotiation, and budget management. The annual project budgets exceeded one million dollars each. • Chief technical analyst for the major hydrogeology program of a large aerospace contractor. Developed and maintained technical expertise in hydrology and contaminant transport at the 20,000-acre site and vicinity. Also served as a technical resource for the Installation Restoration Program at McClellan AFB. • Designed and operated groundwater monitoring networks for several industrial sites. Directed the activities of water-quality sampling crews !including QA/QC); designed and procured data acquisition systems for aquifer tests and continuous well monitoring, and analyzed test results. • Utilized methods of physical hydrology, including numerical modeling, to assess contaminant transport behavior. Generated engineering design parameters for groundwater remediation systems and evaluated the effectiveness of operating remediation systems at several industrial sites. Participated in a pilot study for sail-vapor extraction as part of a Superfund site feasibility study in 1985. U.S. Geological Survey • Conducted research on gaseous transport of VOCs in the vadose zone with funding from the Toxic Waste Thrust Program of the USGS. Developed improved mathematical formulations for transport in porous media, modified existing computer codes to utilize these formulations, and conducted experiments to verify the resulting models. • Conducted research project titled "Water Wells as Strain Meters," attempting earthquake prediction using a network of deep observation wells. Planned and directed construction of observation wells up to 3,000 feet deep, and set up continuous monitoring systems for water level, barometric pressure, rainfall, and other variables. • Performed hydrogeologic investigations of potential monitoring well sites and supervised drilling and completion of wells. Used air and mud-rotary methods, with air-hammer, button, and clay bits to handle a wide variety of drilling conditions. Installed, calibrated, and maintained satellite-telemetry data acquisition systems. Conducted and analyzed several aquifer tests.