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BLAINE A TIMOTHY DRIVE <br /> SAN JOSE CA 95133 <br /> (408) 995-5535 <br /> TECH SERVICES INC FAX (408) 293-8773 <br /> 'E <br /> March 17, 1995 <br /> RECEIVED <br /> Shell Oil Company MAR 2 p 1995 <br /> P O Box 4023 AW <br /> Concord, CA 94524 <br /> Attn Daniel T Kirk <br /> SITS <br /> Shell WIC #204-7884-0901 <br /> 3725 S Tracy Blvd <br /> Tracy, California <br /> QUARTER <br /> I st quarter of 1995 <br /> QUARTERLY GROUNDWATER SAMPLING REPORT 950223-S-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 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 /> 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 mu iscibles 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 /> BIame Tech Services,Inc.950223-S-I Shell 3725 S Tracy Blvd,Tracy page I <br />