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). H . CINFELDER & ASSOATES <br /> GEOTECHNICAL CONSULTANTS • MATERIALS TESTING <br /> LAND & WATER RESOURCES <br /> 2825 EAST MYRTLE STREET <br /> STOCKTON,CA 95205-4794 <br /> (209)9481345 File No . E-2796-1 <br /> August, 28, 1985 <br /> Bassett Construction <br /> 7730 Greenridge Way <br /> Fair Oaks, CA 95628 Attention: Mr . Rex Bassett yprnwq <br /> SEP 16 1985 <br /> Subject: UNION OIL STATION ENVIROMENTAL HEALTH <br /> 5606 PACIFIC AVENUE FERMIT/SERVICES <br /> STOCKTON, CALIFORNIA <br /> Gentlemen: <br /> As per your request, our firm Grilled one boring at the sub- <br /> ject site . The scope of our work was as follows: <br /> 1 . Obtain necessary county permits for the proposed <br /> work. <br /> 2 . Drill, obtain soil sample and water samples . <br /> 3 . Have the soil and water samples analyzed for <br /> hydrocarbons . <br /> On August 13, 1985, our personnel obtained an application for <br /> a permit from San Joaquin County Environmental Health Department for <br /> drilling and sampling from our firm then traveled to the site and <br /> drilled, obtained soil samples at a location chose by a county repre- <br /> sentative . The bore hole was located near the center of a partially <br /> backfilled excavation where a fuel storage tank had been removed. <br /> The bore hole was drilled to a total depth of 44 .5 feet below <br /> the excavated surface which was approximately three feet below <br /> ground surface. Free groundwater was encountered at approximately <br /> 43 feet below the surface. <br /> Three soil samples were obtained from throughout the boring. <br /> These samples were obtained using a Modified California Sampler <br /> using brass sleeves . The sleeves containing the soil samples <br /> were removed from the sampler . Aluminum foil was placed over both <br /> ends of the sleeve and the sleeve was capped using a tight fitting <br /> plastic cap . The samples were then stored in a cold atmosphere <br /> until delivery to the analytical laboratory . The soil samples were <br /> then delivered by our personnel to Canonie Engineers of Stockton <br /> for hydrocarbon content analysis . The results of these analyses <br /> are attached to this report. <br /> OTHER OFFICES: <br /> Fairfield • Sacramento 9 Walnut Creek • Fresno • Merced • Reno • Las Vegas • 51. George, Utah <br />