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-�. -- r <br /> BLAINE985 TIMOTHY DRIVE <br /> �7 "'��1`jEs INC SAN JOSE, CA 95133 <br /> TECH <br /> i FAX(408)293-8773 <br /> fly ! <br /> September 7, 1994 <br /> Shell Oil Company RECEIVED <br /> P O Box 4023 <br /> Concord, CA 94524 SEP 1 Z # <br /> Attn Darnel T Kirk Axl�._._ <br /> DR- <br /> SITE <br /> Shell WIC 9204-7524-0808 <br /> 7910 Lower Sacramento Road <br /> Stockton, California <br /> QUARTER <br /> rd quarter of 1994 <br /> QUARTERLY GROUNDWATER SAMPLING REPORT 940316-L-1 <br /> This report contains cata 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 consuitant who is overseeing work at this site on behalf of our mutual client, <br /> Shell Oil Company Data collected in the course of our yield 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 /> pnor to sampling, ana 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 (pH), tempera- <br /> ture (degrees Fahrenneit), 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 Services,Inc 940816-GI Shell 7910 Lower Sacramento Rd,Stockton page i <br />