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c 290 ELWOOD DAVIS ROAD <br /> SUITE 312 <br /> LIVERPOOL,NY 13088 <br /> TEL:(315)451-9560 <br /> ENGINEERING-SCIENCE, INC. FAX:(315)451-9570 <br /> i <br /> October 6, 1992 -0 <br /> OCT 13 1992 <br /> Mr. Michael J. Infurna Ei11V1R()) 4MENTAL NEALfH <br /> San Joaquin County PERMIT/SERVICES <br /> Department of Public Health Services <br /> Environmental Health Division <br /> P.O. 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 second quarterly groundwater monitoring report for the GLI <br /> terminal in Stockton, California. In addition, we have received a letter dated <br /> September 29, 1992, acknowledging receipt of the revised June Quarterly Status <br /> Report, and providing the Division's acceptance of GLI's proposal to continue the <br /> groundwater monitoring program at the site for one year. We intend to prepare a <br /> response shortly. <br /> The information contained in the September Quarterly Status Report is presented in <br /> the format shown in "Appendix A" of the "Tri-Regional Board Staff Recommendations <br /> for Preliminary Evaluation and Investigation of Underground Tank Sites (August <br /> 1990)". GLI has reviewed and approved this report and has assigned ES to be their <br /> designated representative for preparation and submittal of the quarterly status reports. <br /> The enclosed quarterly status report has been completed accurately, and in accordance <br /> with all applicable LUFT and Tri-Regional requirements. GLI agrees with the <br /> conclusions and recommendations outlined in this cover letter and the attached <br /> quarterly status report. <br /> Groundwater samples were collected at the Stockton facility on September 1, 1992, <br /> and analyzed for TPH-D (DHS/LUFT method modified EPA method 8015/ 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. <br /> With the Division's acceptance (letter dated September 29, 1992), GLI will <br /> continue a groundwater monitoring program consisting of monthly groundwater level <br /> measurements and quarterly groundwater sampling at this location for a total period of <br /> A PARSONS COMPANY <br /> LMLlSY139.31/293 REV 3 <br />