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BLAINE <br /> s. 985 TIMOTHY DRIVE <br /> �rt I SAN JOSE CA 95133 <br /> ' i (408) 995 5535 <br /> TECH SERVICES INC FAX (408) 293 8773 <br /> i I <br /> I 3 <br /> December 23 1993 <br /> Shell Oil Company <br /> P O Box 5278 RECEIVED <br /> Concord, CA 94520-9998 <br /> Attn Daniel T Kirk <br /> JAN 1 Q 1994 <br /> SITE <br /> Shell WIC X204-4416-0202 <br /> 420 W Kettleman <br /> Lodi, California <br /> QUARTER <br /> 4th quarter of 1993 <br /> QUARTERLY GROUNDWATER S VUPLING REPORT 931122-L-1 <br /> This report contains data collected dunna routine inspection, gauging and sampling of <br /> groundwater monitoring weils performed by Blaine Tech Sen ices, 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 field work is presented in a <br /> TABLE OF WELL GAUGING DATA The field information was collected during our <br /> prelinunary 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 during 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 tabulated here, while the bulk of the information is turned over directly to <br /> the consultant v�ho is making professional interpretations and evaluations of the conditions <br /> • at the site <br /> Blaine Tech Semon ine 931122LI Shell 420 W K ttleman Lodi page 1 <br />