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�1 <br />BLAINE_.4037 TECH SERVICES INC <br />Shell Oil Company <br />P O Box 4023 <br />Concord, CA 94524 <br />Attn Daruel T Kirk <br />RECEIVED <br />1" C 1 2 1994 <br />SITE <br />Shell WIC #204-7524-4305 <br />620 W Charter Way <br />Stockton, California <br />QUARTER <br />4th quarter of 1994 <br />December 7, 1994 <br />QUARTERLY GROUNDWATER SAMPLING REPORT 941117-K-1 <br />985 TIMOTHY DRIVE <br />SAN JOSE CA 95133 <br />(408) 995-5535 <br />FAX (408) 293-8773 <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 Immisclbles 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 />13131ne Tech Services, Inc 941117 K-1 Shell 620 W charter Way, Stockton page 1 <br />