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la i I <br /> BLAINE985 TIMOTHY DRIVE <br /> r SAN JOSE CA 9513~ <br /> �ECH SERVICESINC (408) 995-553E <br /> F <br /> I I FAX (408) 293 877 <br /> it <br /> Am]27, 1993 eq-0[3 <br /> RECEIVE D <br /> MAY 0 5 1993 <br /> Shell Oil Company <br /> P O Box 5278 <br /> Concord, CA 94520-9998 <br /> Attn Daniel T Kirk <br /> Srm <br /> Shell WIC204-44I6-0202 <br /> 420 W Kettleman Lane <br /> Lodi, California <br /> QLARTER <br /> 2nd quarter of 1993 <br /> QUARTERLY GROUNDWATER OUNDWATER SAMPLL'VG REPORT 930409-Y-2 <br /> This report contains data collected dunng routine inspection, gauging and sampling of <br /> groundwater monitonng 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 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 /> BIA=Tedi Services InC 934309-Y-2 Shell 420 W Keuleman,Lod> page 1 <br />