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STATE OF CALIFORNIA-Environmental Protectio- '�ency PETE WILSON, Govemor <br /> CALIFORNIA REGIONAL WATE, _ .QUALITY CONTROL BOARD <br /> CENTRAL VALLEY REGION <br /> 3443 Routier Road,Suite A ti 4£EiV��� i� _ <br /> Sacramento,CA 95827-3098 `? 'jT r7 P <br /> PHONE:(916)255-3000 �l�l� <br /> FAX:(916)255-3015 9r <br /> � <br /> F� 1. 52 <br /> 21 March 1995 <br /> Mr. Randy Smith <br /> Southern Pacific Transportation Company <br /> One Market Plaza <br /> San Francisco, CA 94105 <br /> ADDITIONAL INVESTIGATION OF LEAD IN SOIL, SOUTHERN PACIFIC <br /> TRANSPORTATION COMPANY, OLD TRACY YARD; SAN JOAQUIN CO- TNTY <br /> I have reviewed the 3 March 1995 Transmittal of Additional Analysis Results submitted by <br /> Industrial Compliance (IC) for the old Tracy Yard. I also have discussed the various issues <br /> concerning the site with you and Dr. Richard Bateman of IC. This letter confirms those tasks <br /> which you agreed to undertake. <br /> The rain has hindered efforts to begin excavation at the site. Therefore, the submittal date for the <br /> report of the results of confirmation sampling and your recommendations is extended until 2 June <br /> 1995. Confirmation samples will be analyzed for total lead and soluble lead using the waste <br /> extraction test. <br /> Monitoring wells MW-1 and MW-2 have both been sampled recently, and MW-2 had detectable <br /> concentrations of petroleum and organic compounds. According to the August 1994 work plan <br /> addendum, a third well is to be installed at the site. This well will be installed after the excavation <br /> activities are complete. <br /> I would like information regarding the proper abandonment of the monitoring wells which were <br /> related to the former underground tanks in the southeast part of the site. Please submit this <br /> information with the June report. <br /> If you ha e any questions, you may call me at (916) 255-3077. <br /> J L M. WEISS <br /> Engineering Geologist <br /> JMW:j mwAsb <br /> cc: Department of Toxic Substances Control, Sacramento <br /> San Joaquin County Department of Public Health Services, Stockton <br /> Industrial Compliance, Sacramento <br />