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SITE ASSStEES WN4i�K PLAN <br /> e Nieman Lane <br /> Lodi, California <br /> Aegis Project No. 89-013 <br /> page 1 <br /> I.0 INTRODUCTION <br /> This work plan describes the proposed further site assessment for <br /> the Shell gasoline station located at 420 West ICettlemanr�uento a <br /> Lodi, California (Site) This work plan was inititiated <br /> rage tank replacement,originally <br /> delay in.the. underground sto <br /> scheduled for July, 1990 and a letter by San Joaquin County <br /> - public health Services requesting that a plan for soil/ <br /> ubmitted by August 10th <br /> groundwater investigation be sThe <br /> report .will assist in further delineating the extent of petroleum <br /> hydrocarbons beneath the site following the Tri-Regional Board <br /> 5 Staff Recommendations for Initial Evaluation and Investigation of <br /> Underground Tanks. <br /> y j <br /> -.I-PAM e <br /> The purpose of this assessment is to: <br /> o l and hydrogealogic conditions <br /> Further characterize the soi <br /> below the Site. <br /> o Further assess the presence of petroleum hydrocarbons, if <br /> h any, on groundwater beneath the Site. <br /> o Evaluate the need for further assessment and/or mz'.igation <br /> k ` of. petroleum constituents in soil.and ground water beneath <br /> .`..the site. <br /> 7 I:2 MR-2 <br /> ` A detailed work plan is described in section 3.0. The scope of <br /> work is summarized below. <br /> r o brill three soil borings to an estimated maximum. depth <br /> of 60 feet below grade or until 10 feet below the <br /> encountered ground water surface. <br /> k o Sample and log tY!e soil borings according to the <br /> Unified Soil Classification System (uSCS) . Recover <br /> > from each of the borings representative soil aamples at <br /> five-foot intervals or at depths determined by the <br /> Aegis Geologist or Engineer. <br /> «t o Screen recovered soil samples for the presence of organic <br /> vapors with a portable gas detector according to meth.rids <br /> -- -- ` described in section 4.0 -- — -- - -- T- - - - <br /> o Based on results of classification and screening, submit <br /> f <br /> �r <br /> 7 z; <br /> _ :i <br />