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irl <br /> ENGuNrEFERO G-SCIFUMCE. INC. ENV11R0Eq-1r:NT 04.L 11`1EAI-TH <br /> r,i I St,I:i <br /> 290 Elwood Davis Road Suite 312•Liverpool New York 13088•(315)451-9560• Fax (315)451-9570 <br /> 93 JUL 16 PH 2: 00 <br /> July 12, 1993 <br /> Mr Michael J. Infurna <br /> San Joaquin County <br /> Department of Public Health Services <br /> Environmental Health Division <br /> P 4 Box 2009 <br /> 1601 East: Hazelton Avenue <br /> Stockton, California 95201 <br /> Re Greyhound Terminal ' <br /> Location #8969 <br /> Stockton, California <br /> Dear Mr Infurna <br /> Engineering-Science, Inc. (ES) is pleased to present, on behalf of Greyhound <br /> Lines, Inc (GLI), the fifth Quarterly Status Report for the GLI terminal in Stockton, <br /> California The report also serves as the June 1993 monthly monitoring report. <br /> The information contained in the June Quarterly Status Report is presented in the <br /> format shown in "Appendix A" of the "Tri-Regional Board Staff Recommendations for <br /> Preliminary Evaluation and Investigation of Underground Tank Sites (August 1990)" <br /> GLI has reviewed and approved this report and has assigned FS to be their designated <br /> representative for preparation and submittal of the quarterly status reports The <br /> enclosed quarterly status report has been completed accurately, and in accordance with <br /> all applicable LUFT and Tri-Regional requirements , GLI agrees with the conclusions <br /> and recommendations outlined in this cover letter and the attached quarterly status <br /> report <br /> Groundwater samples were collected at the Stockton facility on June 9, 1993, and rt <br /> analyzed for TPH-D (DHS/LUFT method modified EPA Method 80151 solution <br /> preparation Method 3510), and BTEX (EPA Method 602) Figure 1 provides a site <br /> map showing the monitoring well locations The detection limits specified in the 1989 <br /> LUFT Manual (Appendix D, Table 3-5) were met by the analytical laboratory None <br /> of the analytes were detected in groundwater monitoring wells MW-1 and MW-2 with <br /> the exception of TPH-D at a concentration of 0 07 mg/l in MW-2 Both TPH-D and <br /> BTEX constituents were detected in trace concentrations in the groundwater sample <br /> collected from MW-3 <br /> 10 jP�►B35®R'15 LMC./SY360 2210061 REV 1 <br />