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ter+ <br /> w.� <br /> KAPR a A R' l,+r Qp papa Me" . <br /> Consulting Engineers <br /> P-0. Bax 913 <br /> BENICIA,CA 94510 <br /> (415)676.9100 (707) 746-s915 <br /> REI-P88-0810-1 <br /> Mobil Oil CorpOzation December 9, 1988 <br /> P.O. BOX 127 <br /> Richmond, CA 94804 <br /> Attention: Mr. Steve Pao <br /> RE: Preliminary Subsurface Investigation at <br /> Mobil Bulk Plant <br /> 500 East Grantline Road <br /> Trac7 California <br /> Dear Mr. Pao: <br /> This report presents the resultsOf <br /> for the referenced site in our subsurface <br /> September 15, 19Th <br /> 88. accordance with our investigation <br /> assess the e purpose of the proposal dated <br /> quality <br /> location fomonitoring subsurface investigation was to <br /> consisted of the at the site.g wells soil and determine the best. <br /> following: te. <br /> The work performed <br /> Coordination with regulatory agencies. <br /> Drilling six exploratory borings. <br /> Soil sampling. <br /> Laboratory analyses. <br /> Data analyses, .interpretation and report preparation. <br /> PTION P ration. <br /> SITE DESCRI <br /> D BACICGROIJN <br /> f L The subject site <br /> vacant lot was a bulk distribution <br /> as all buildings,- etc: have Plant _:-and is <br /> -vicinity and site <br /> been now- a <br /> description are torn down. Site <br /> No leaks or previous s shown on the attached sketches. <br /> known to fir. ubsurface work performed at the site are <br /> In August 1988r one underground <br /> from the site. Soil samplesfuel storage tank <br /> were analyzed by Se collected from beneath as removed. <br /> hydrocarbon as gasoline <br /> Analytical for the tanks <br /> ethylbenzene ( (TPH) , benzene total petroleum. <br /> lead BTX&E) , ethylene dibromide , toluene, xylenes. and <br /> (TOL) . Samples from beneath the ftie(EDB) and total organic <br /> ranging from 200 to 240 tanks had <br /> contamination found Ppm. Based TPH levels <br /> in the soil from beneath the the Zeveis of <br /> tank, ILEI <br />