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a <br /> BLAINE <br /> 985 TIMOTHY DRIVE <br /> SAN JOSE CA 95133 <br /> , <br /> TECH SERVICES INC FAX (408) 293-8773 <br /> September 27, 1993 <br /> r <br /> :_ ,r <br /> Shell 011 Company <br /> PO Box 5278 RECEIVED <br /> Concord, CA 94520-9998 O C T - 1 1993 <br /> Attn Daniel T Kirk <br /> W ........... <br /> I f <br /> SITE <br /> Shell WIC , 204-7524-4305 <br /> 620 W Charter Way <br /> Stockton, California <br /> QUARTER <br /> 3rd quarter of 1993 <br /> QUARTERLY GROUNDWATER SAMPLI'\i TG REPORT 930826-F-1 <br /> This report contains data collected during routine inspection, gauging and sampling of <br /> groundwater monitoring wells performed by Blaine Tech Services, Inc in reponse to the <br /> request of the consultant wno is overseeing work at this site on behalf of our mutual client, <br /> Shell Oil Company Data collected in the course of our field work is presented in a <br /> TABLE OF WELL GAUGING DATA The field information was collected during our <br /> preliminary gauging and inspection of the wells, the subsequent evacuation of each well <br /> prior to sampling, and at the time of sampling <br /> Measurements taken include the total depth of the well and the depth to water The surface <br /> of water was further inspected for the presence of immiscibles which may be present as <br /> a thin film (a sheen on the surface of the water) or as a measurable free product zone <br /> (FPZ) At intervals dunng the evacuation phase, the purge water was monitored with <br /> instruments that measure electrical conductivity (EC), potential hydrogen (pl:), tempera- <br /> ture (degrees Fahrenheit), and turbidity (NTU) In the interest of simplicity, fundamental <br /> information is tanulated here, while the bulk of the information is turned over directly to <br /> the consultant u,ho is making professional interpretations ana evaluations of the conditions <br /> . at the site <br /> i3iaim Tech Servicm Inc 930826-F-1 Shell 620 W Charier Wav Stockton page 1 <br />