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y/ —L7 cy <br /> _ ELAINE 7 <br /> i 985 TIMOTHY DRIVE <br />_ ! SAN JOSE CA 9513.. <br /> TECH SERVICES !NC FAX (408) 293-8 72 <br /> I <br /> June 18, 1993 RECEIVED <br /> J U N 2 3 1993 <br /> Shell Oil Company <br /> P O Box 5278 <br /> Concord, CA 94520-9998 <br /> Attn Daniel T Kirk <br /> S= <br /> Shell WIC #204-7524-4305 <br /> 620 West Charter Way <br /> Stockton, California <br /> QLARTER <br /> 2nd quarter of 1993 <br /> QUARTERLY GROUNDWATER S-10N4PLING REPORT 930527-N-2 <br /> This report contains data collected during routine inspection, gauging and sampling of <br /> groundwater monitoring wells performed by Blaine Tech Services, Inc in response to the <br /> request of the consultant who is overseeing work at this site on behalf of our mutual client, <br /> Shell Oil Company Data collected in the course of our fieldwork 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 /> pnor 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 the 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 during the evacuation phase, the purge water was monitored with <br /> instruments that measure electrical conductivity (EC), potential hydrogen (pH), tempera- <br /> ture (degrees Fahrenheit), and turbidity (NTU) In the interest of simplicity, fundamental <br /> information is tabulated here, while the bulk of the information is turned over directly to <br /> the consultant who is making professional interpretations and evaluations of the conditions <br /> at the site <br /> Blaine Tech Semcrs,Inc. 930527 N 2 Shell 620 W Charter,Stockton page I <br />