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Ohl_ <br /> -I 1 <br /> r. <br /> Delta <br /> �AL <br /> environmental <br /> Consultants,Inc. <br /> Solving,environment-related business problems worldwide www.deltaenv.com <br /> 3164 Gold Camp Drive •Suite 200 <br /> Rancho Cordova, California 95670 USA <br /> 916.638.2085 800.477.7411 <br /> Fax 9I 6.638.8385 <br /> April 30, 2004 <br /> Mr.Jeffrey M.Baker,P.E. <br /> Tesoro Petroleum Companies,Inc. <br /> 3450 South 344`x'Way, Suite 100 , <br /> Auburn,Washington 98001-5931 <br /> Subject: Baseline Assessment for Soil Boring and Monitofing Well Installation <br /> Tesoro No. 67080 <br /> 2448 West Kettleman Lane <br /> Lodi,California <br /> Delta Project No.D003-007-1 <br /> Dear Mr.Baker: <br /> Delta Environmental Consultants,Inc.,(Delta)has been au t or'zed by Tesoro Petroleum Companies, Inc., <br /> (Tesoro)to conduct a Baseline Assessment for the subject site.Tesoro has recently sold the retail station to <br /> LISA Petroleum(USA). Soil borings and groundwater monitoring wells were installed near the fuel tanks <br /> and dispensers to obtain soil and groundwater samples for laboratory chemical analyses of petroleum <br /> hydrocarbon constituents. <br /> Site Description <br /> The site is located on the southeast corner of Lower Sacramento Road, and West Kettleman Lane (Figure <br /> 1). The site is currently operated by USA as a retail gasoline station. The site is located in a commercial <br /> area with retail shops to the east and south,and agricultural I and to the west and north. <br /> Scope of Work <br /> On November 21, 2003, four soil borings were installed ith a power-probe hydraulic push rig and on <br /> December 1 and 3, 2003, one soil boring and three monitoring wells were installed using a sonic drill rig. <br /> Soil boring and monitoring well locations are presented in Figure 2. <br /> Permits <br /> Application for drilling permits for the borings andlls obtained from San Joaquin County Health <br /> T Department(SJCHD)are presented in Enclosure A. ��D <br /> MAY 0 4 2004 <br /> ENVIRONMENT HEALTH A m.m,k, :: <br /> PERMIT/SERVICES <br /> Xinogeifm-W Alli-C <br />