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PARSONS ENGINEERING SCIENCE, INC. <br /> 290 Elwood Davis Road,Suite 312•Liverpool, New York 13088-(315)451-9560•Fax(315)451-9570 <br /> IV <br /> A <br /> NOV 0 4 1996 <br /> ENVIRONIIVENT,1- HEALTH <br /> PERMIT / SERVICES October 22, 1996 <br /> Mr. Michael J. Infurna <br /> San Joaquin County <br /> Department of Public Health Services <br /> Environmental Health Division <br /> P.O. Box 388 <br /> 445 N. San Joaquin Street <br /> Stockton, California 95201-0388 <br /> Re: Greyhound Terminal <br /> Location#8969 <br /> Stockton, California <br /> Dear Mr. Infurna: <br /> On behalf of Greyhound Lines, Inc. (Greyhound), Parsons Engineering Science, Inc. <br /> (Parsons ES) is pleased to present the September 1996 Quarterly Status Report for the <br /> Greyhound terminal in Stockton, California. The report provides the information specified <br /> in Appendix A of"Tri-Regional Board Staff Recommendations for Preliminary Evaluation <br /> and Investigation of Underground Tank Sites (December 1990)". Greyhound has <br /> reviewed and approved this report, and has assigned Parsons ES to be their designated <br /> representative for preparation and submittal of the quarterly status reports. The enclosed <br /> report has been completed accurately, and in accordance with applicable LUFT and Tri- <br /> Regional requirements. Greyhound agrees with the conclusions and recommendations <br /> outlined in this cover letter and the attached report. <br /> As described in the report, groundwater samples were collected at the Stockton <br /> facility on September 4, 1996, and analyzed for TPH-D (Modified EPA Method 8015) and <br /> benzene, toluene, ethylbenzene, and xylene (BTEX) (EPA Method 8020). BTEX and <br /> TPH parameters were not detected in any of the groundwater samples. The sampling <br /> event included newly installed MW-4 which was installed to provide closure of the <br /> western extent of the limited soil plume. Based on data collected to date and on the recent <br /> request by the San Joaquin County Department of Public Health Services, Greyhound is <br /> currently preparing a site closure report in accordance with Appendix B of the "Tri- <br /> Regional Board Staff Recommendations for Preliminary Investigation and Evaluation of <br /> Underground Storage Tank Sites, Requests for Closure" (March 1, 1994). It is <br /> Greyhound's understanding that no further monitoring or sampling will be required until <br /> the closure report is reviewed. <br /> PARSONS PARESSYRO I\VOLI:W P\728878\08969\08969LO2.W W6 <br /> PARSONS <br /> PARESSYROI\VOLI:WP\728878\08969\08969LO1.W W6 <br />