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r-� ` Mr Russell F Chapin, Sr May 15, 1995 Page 5 It should be noted, however, that we do not recommend this procedure Careful � monitoring of the system inlet concentrations should allow reasonably accurate estimation of the site status without un-necessary site disturbance by drilling and sampling operations VERIFICATION SAMPLING Verification sampling is proposed to consist of collection and analysis of samples from drive-point sampling, a quick and cost-effective way of collecting undisturbed soil and groundwater samples The method involves hydraulically pushing a 2-in probe to collect samples The method also has the added advantage of producing no drill cuttings and minimizing site disturbance We should be able to generate 8 to 12 or more penetrations within a day We expect that this should be sufficient to evaluate subsurface conditions at the site QUALIFICATIONS AND EXPERIENCE Lush Geosciences and its Principal Geologist, Andrew Lush, has extensive experience across a wide range of projects Relevant experience includes development of groundwater and vadose-zone monitoring programs and mitigation of subsurface contamination for a wide variety . of contaminated sites including service stations, landfills, refineries, bulk fuel storage plants, agricultural sites, and industrial facilities, groundwater sampling and sample analyses for Solid Waste Assessment Tests for landfills, and design of the groundwater monitoring system, geologic and hydrologic characterization, and seismic assessments for the Kettleman Hills Class I Chemical Waste Disposal Facility Our personnel are very familiar with the geologic setting of the site through extensive work in the Bay Area and the Sacramento and San Joaquin Valleys We are also familiar with the requirements for reimbursement by the State SB2004 fund for underground storage tank cleanup work The direct technical supervisor for this project will be Andrew Lush, President and Principal Geologist, a California-Registered Geologist (RG 442 1) with more than 13 years of experience as a professional geologist and hydrogeologist His work experience includes delineation, monitoring, and mitigation of soil and groundwater contamination, hazard assessment, and use of geophysical, geological, and well data to create structural geologic models His work has included design, construction, development, and sampling of monitoring wells and monitoring systems at a wide variety of commercial and industrial facilities and preparation and presentation of contamination assessment and mitigation reports for contaminated sites for SWAT tests at landfills Mr Lush will be responsible for overall project • 4058-PZ LUSH GI=OSCIENCES