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M K L E I N F E L D E R <br /> LAO <br /> then transported by courier in a chilled ice chest to a State-certified analytical laboratory for the <br /> requested chemical analyses. <br /> The stainless steel hand auger and sampling equipment and tubes will be cleaned between sample <br /> locations with a Liquinox® (laboratory-grade detergent) and potable water wash and a distilled <br /> water rinse. New stainless steel tubes used for sample collection were also decontaminated using <br /> the same methodology. <br /> Based upon preliminary verbal conversation between RAH Environmental of Loomis, California <br /> (RAH), a hazardous materials excavation and disposal subcontractor, it is Kleinfelder's <br /> understanding that Forward Landfill (a local Class 11 Landfill), will accept the proposed <br /> excavated material based on the analytical data contained in Kleinfelder 7S previous pushprobe <br /> soil and groundwater assessment and will not require additional stockpiling or chemical analyses. <br /> Based on this preliminary information, this workplan does not include stockpiling of excavated <br /> soil onsite, stockpile soil sampling or chemical analyses for disposal purposes. Kleinfelder at <br /> this time proposes that the material be excavated directly into transportation trucks and hauled <br /> directly to a local landfill. This aspect of the workplan, if realized,will contribute to a significant <br /> cost savings since the excavated soil will not have to be handled several times and will also save <br /> money in terms of soil collection and testing. The time for the removal process will also be <br /> much shorter by directly loading the material. <br /> Please note that additional excavation activities and soil sample collection and analyses may be <br /> necessary based on the requests of SJC/EHD and or based on confirmation soil sampling results <br /> which are above the counties cleanup goal. <br /> This workplan does not address heath and safety issues or logistics to removing petroleum wAS� <br /> impacted soil in the immediate vicinity of the Chevron Pipeline or the two PG&E pipelines. Soil rJ�' <br /> will not be able to be removed in and around these three pipelines without the concurrence of (/ <br /> Chevron and PG&E and without proper health and safety considerations. At this time ,el 4 <br /> Kleinfelder assumes Chevron will provide the services enabling soil removal at, near and under <br /> their pipeline. Kleinfelder recommends correspondence with PG&E to asses potential remedial l <br /> options in the near vicinity to their two pipelines and concurrence of an agreed upon A' <br /> methodology. <br /> Kleinfelder has had preliminarily discussions on this topic with PG&E personnel during a site <br /> meeting prior to pushprobe field activities. Based on that conversation it may be possible to <br /> skim up to 3 feet of soil above their two pipelines using a small tractor with a scraper and with <br /> PG&E concurrence and PG&E personnel onsite. <br /> Kleinfelder recommends sloping the excavation according to OSHA guidelines, and stockpiling <br /> apparent clean soil related to sloping operations followed by collecting 4-point composite <br /> samples of this material. Kleinfelder recommends collecting a single 4-point composite sample <br /> for each 2,000 cubic yards of this material. Assuming this material is clean Kleinfelder <br /> recommends using this material for backfill operations. This workplan does not address <br /> backfilling and compaction operations related to the proposed excavation. <br /> Page 5 of <br /> 44843.T04/ST04RI 121r _ <br /> Copyright 2004,Kleinfelder,Inc. September 2,20044 <br />