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wipe <br /> WALLACE • KUHL&ASSOCIATES,INC. <br /> GEOTECHNICALCUNSULTANTS uONSTHUOPUN TESTING <br /> December 6, 1990 <br /> 144' <br /> Post Tank <br /> Attention: Jeff Post �% y <br /> P.O. Box 657 <br /> West Sacramento, California 95691 AFq^N/Lj y r' <br /> SOILS SAMPLING AND TESTING <br /> U.SSPRINT PROPERTY <br /> 6855 West Eight Mile Road <br /> Stockton, California <br /> WKA No. 1004.41 <br /> Purpose and Scone <br /> We have completed laboratory testing of soil samples obtained from the subject property. Samples <br /> were obtained in the area of a former 8,000 gallon underground diesel fuel storage tank and the <br /> associated product line. A draft site map showing locations and depths of the soil samples is attached. <br /> Samples were obtained under the direction of Casey Foley of the San Joaquin County Environmental <br /> Health Department. Laboratory analyses revealed no detectable levels of benzene, toluene, <br /> ethylbenzene, or xylenes in any of the samples. All the soil samples contained detectable levels of <br /> motor oil; sample B4-1I contained detectable levels of TPH-diesel. The water sample obtained from <br /> boring 1 contained 0.9 ppm TPH-motor oil. Complete laboratory results are attached. <br /> Limitations <br /> The above conclusions are based on our assessment of conditions indicated to exist as of the date of <br /> our field work December 4, 1990. The results of this investigation do not preclude the possibility of <br /> substances that are currently or in the future defined as hazardous being present on this property <br /> because of activities we did not identify. This report is applicable to the investigate area only and <br /> should not be used for other portions of the property. <br /> Wallace - Kuhl & Associates, Inc. <br /> "_ V �2_e <br /> Eric Hubbard <br /> Registered Geologist #4807 <br /> Attachments: Site Plan <br /> 3050 INDUSTRIAL BOULEVARD - PO BOX 1137 - WEST SACRAMENTO,CA 95691 � (916)3721434 • FAX(916)372-2565 <br />