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Wt- S I ERNG1, 01, 0GIC RI- SOURCI, S , INC <br /> E Ratliff/9 May 1990 4 <br /> TPPH, aromatic hydrocarbons and halocarbons Selected soil samples will also undergo sieve analysis <br /> and air-permeability testing <br /> SUMMARY <br /> The objective of this proposed work plan is to furthLi- di GnL the w-rocal and horizontal c,xtc nt of <br /> hydrocarbons present in the subsurface at the API facility In order to obtain this objective,3 additional <br /> 11� -zedmonitor wells will be installed During well installation, soil samples will be collected and analyfor <br /> TPPH and BTEX Following the installation,all of the monitor wells will be surveyed relative to mean <br /> sea level to establish top-of-casing elevations These elevations will be used to determine groundwater <br /> - elevations and groundwater flow direction The monitor wells will subsequently be developed and <br /> groundwater samples will be collected for analysis of TPPFI, BTEX and selected halocarbons The <br /> laboratory results will be evaluated in conjunction with previously collected data and a technical report <br /> r <br /> of the investigation will be prepared <br /> We hope to commence this second phase work the wc,ek of 21 May 1990 WGR personnel will contact <br /> you to set a time for well grouting inspection WGR Senior Geologist Kathleen Isaacson will manage <br /> this work PIease call us at (415) 457-7595 if there are any questions <br /> Sincerely, <br /> Western Geologic Resources, Inc <br /> Kathleen A Isaacson <br /> Senior G ologist <br /> Thomas J Echol <br /> ` Senior Geologi No 4504 <br /> CRG #4564 f <br /> fir Exp 6-30 90 <br /> KAI/TJE vw OF CPV%* 4 <br /> cc Dan Crownover - Apache Plastic, Inc <br /> 06OLlAPO WP <br /> V <br /> 1 17J"'1 <br />