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A <br /> ILEI-P88-0820.WP1 <br /> February 10, 1989 <br /> Page 2 <br /> 2. Site Descri tion: <br /> The bulk plant site occupies a now vacant lot approximately <br /> 1451 X 1451 in Tracy. Location Map and Site Plan are <br /> attached. <br /> PROPOSED FIELD WORK <br /> PHASE I - MONITORING WELL INSTALLATION <br /> 1. KEI proposes to install four 2" diameter monitoring wells <br /> using hollow stem auger equipment (Site Plan) . Permits for <br /> installation of monitoring wells will be obtained from the <br /> San Joaquin Local Health District as <br /> beginning work. necessary prior to <br /> The wells will be drilled 15 feet into the saturated zone of <br /> the first encountered ground water unless a five foot thick <br /> clay aquitard is encountered first, at which time drilling <br /> will be terminated. <br /> 2. Soil samples will be. collected at five foot intervals <br /> beginning at a depth of five feet until the first water <br /> table is encountered. classification of soil will be done <br /> using the Unified Soils Classification System (USCS) by <br /> KEI's field engineer or geologist. Samples will be col- <br /> lected in a California modified split-spoon sampler with <br /> clean .2" by 4" brass liners. The sampler will be advanced <br /> ahead of the drilling augers at . designated depths by <br /> dropping a 140 pound hammer 30". Blow counts will be <br /> recorded. The samples will be removed from the sampler, <br /> retained in the brass liners, and sealed with aluminum foil, <br /> Plastic caps and tape. They will be labeled and stored on <br /> ice for delivery to a state certified laboratory. <br /> 3 Finalized boring logs will be prepared from field logs and <br /> submitted to the San Joaquin Local-Health- District and to-- <br /> the Regional water <br /> Quality Control Board (RWQCB) , central <br /> Valley Region, Sacramento Office. <br /> 4. Ground water is anticipated at approximately 12 feet belov <br /> grade based on the ground ;cater level found during tank <br /> removal and exploratory boring.drilling. <br />