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Spill Response Actions Report California Central Traction Company, Lodi Avenue Right-of-Way,Lodi,CA May 5,2011 Page 3 A final confirmation sample(CS-4)was collected at that location and analyzed for TEPH-diesel. The TEPH-diesel concentration reported in CS-4 was 790 mg/kg,significantly less than the 20,000 mg/kg result from the sample collected 1.5 feet above. The two order of magnitude reduction in the TEPH-diesel result over approximately 1.5 feet in depth would indicate fuel impacts do not extend much beyond the total depth of excavation and would support a lower estimate for the total volume of fuel spilled from the ruptured tank. Following over-excavation activities completed on Friday morning, Environmental Logistics, Inc. mobilized two roll-off bins to the site to handle transportation of the impacted soils to the designated disposal facility(Photograph 8). Using a bobcat and excavator,CCT personnel loaded the stockpiled soils into the roll-off bins (Photographs 9&1o). The bins were then transported by Environmental Logistics to Forward landfill in Manteca, California as non- hazardous solid waste. A total of 57,76o pounds of soil impacted with diesel fuel was removed from the spill location. Copies of the manifests are included in Appendix C. The stockpile area was restored(Photograph 11)and the excavation was backfilled with clean ballast obtained from adjoining areas along the right-of-way outside the spill area(Photograph 12). During the spill response actions, Garrett Backus,and inspector with the San Joaquin County Environmental Health Department(SJCEHD)was onsite to observe the removal actions and to speak with the TRC representative onsite. The SJCEHD inspector was onsite during the initial response actions on Monday and then on Friday during the over-excavation activities. The SJCEHD inspector was not onsite during the stockpile removal and excavation backfill activities. If you have any questions regarding the spill response actions outlined in this report,please contact Keith Woodburne at(925) 688-2488• Sincerely, �5510NAL 6F � O �O KErr4 M L. O WOOD Keith Woodburne, P.G. o BURNS u� Senior Project Manager EXp 3 3 ATTACHMENTS: t�OF CAL1Fd� Figure 1: Vicinity Map Table 1: Summary of Soil Analytical Results Appendices: Appendix A: Site Photographs Appendix B: Laboratory Analytical Reports and Chain-of-Custody Documentation Appendix C: Waste Manifests cc: Dave Buccolo, CCT Matt Graham, BNSF