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GROUNDWATER 13 NoV 3 Pty z. <br /> TECHNOLOGY INC. l <br /> 14Q1 Halyard Drive,Suite 140,West Sacramento,CA 95691.(916)372-4700 <br /> FAX(916)372-8781 <br /> October 27, 1993 Project No. 02020 3767 <br /> ' Mr. Bob Vasquez <br /> The Southland Corporation <br /> ' 5820 Stonerldge Mall Road, Suite 310 <br /> Pleasanton, California <br /> SUBJECT: Third Quarter 1993 Monitoring and Sampling Report <br /> Southland Site No. 20304 <br /> ' 455 Grant Line Road <br /> Tracy, California <br /> ' Dear Mr. Vasquez: <br /> This Third Quarter 1993 Monitoring and Sampllna Report presents the results of monitoring and <br /> ' sampling activities performed by Groundwater Technology, Inc. at The Southland Corporation <br /> (Southland) Site No. 20304 located at 455 Grant Line Road in Tracy, California (Figure 1) between <br /> July 1 and September 30, 1993. <br /> The activities during this reporting period included: <br /> ' ■ Surveying 14 groundwater monitoring wells and one groundwater extraction well. <br /> ' ■ Monitoring 14 groundwater monitoring wells and one groundwater extraction well <br /> (Figure 2) to measure the depth to water (DTIV) and to check for the presence of <br /> separate-phase hydrocarbons. <br /> ■ Collecting groundwater samples from 10 groundwater monitoring wells and one <br /> groundwater extraction well and submitting them to a California-certified laboratory <br /> for benzene, toluene, ethylbenzene and xylenes (BTEX), and total petroleum <br /> ' :..hydrocarbons-as-gasoline (TPH-G) analyses using Environmental Protection Agency <br /> {EPA) Methods 8020/8015. <br /> ' WELL SURVEY <br /> ' On July 13, 1993, Ronald Greenwell and Associates, Inc. were contracted by Groundwater <br /> Technology to survey 14 groundwater monitoring wells and one groundwater extraction well. The <br /> well survey.data are presented in Attachment 1. <br /> r�- <br /> Offices throtghout the U.S..Canada and Overseas <br />