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January 10, 2000 Corporation <br /> Page 2 A Member of The IT Group <br /> PROPOSED SCOPE OF WORK <br /> As described above an approved contractor has removed the dispenser and product line <br /> plumbing. Our objective in performing the scope of work.are to address areas of soil impacted by <br /> hydrocarbons using limited over excavation based on the hydrocarbon levels encountered. Field <br /> and laboratory procedures are included as Attachment A. <br /> Site-Specific Health and Safety Plan <br /> As required by the Occupational Health and Safety Administration (OSHA) "Hazardous Waste <br /> Operations and Emergency Response"guidelines (29 CFR 1910.120), and by California <br /> Occupational Health and Safety Administration (Cal-OSHA) "Hazardous Waste Operations and <br /> Emergency Response" guidelines (CCR Title 8, Section 5192), IT has prepared a Site-Specific <br /> Health and Safety Plan (Attachment B). The Site-Specific Health and Safety Plan will be <br /> reviewed by the field staff and contractors prior to beginning field operations at the site. <br /> Soil Sampling Activities <br /> During upcoming activities, IT will be onsite to aid in the direction of excavation activities and <br /> to collect confirmation samples. The samples will be submitted under chain-of-custody <br /> documentation to Sequoia Analytical, a California State-certified analytical laboratory for <br /> analysis as described below. <br /> Management of Excavated Soil and Limited Over Excavation <br /> Over excavation limits will be determined by the extent of hydrocarbon impacted soil, <br /> emergency conditions, proximity to structures or property boundaries, depth to groundwater <br /> (expected to be approximately)5 fqet bgs) and/or the physical limits of excavation equipment. It <br /> is anticipated that over excavated soil will not exceed 500 cubic yards. Possible areas of <br /> excavation and stockpile placement are shown on Figure 1. Discrete confirmation samples will <br /> be collected from the excavation as directed by SJCPHS/EHD. Following completion of over <br /> excavation the excavation will be backfilled and product line replacement activities will <br /> continue. <br /> The excavated soil will be stockpiled in segregated piles based on field evidence of impacts and <br /> placed on and covered with plastic sheeting. All stockpiled soil will be sampled''-at one four- r <br /> .point composite for every 100 yards for disposal profiling. Once profiled it is anticipated that <br /> excavated soil will be hauled and disposed of at Forward Landfill in Manteca, California. With <br /> the permission of SJCPHS/EHD,'clean stockpiled soil maybe reused as fill: <br /> Groundwater Sampling Contingency <br /> a � <br /> If sufficient water is encountered in the excavation,{one groizndw`atdr"grab" sample will be <br /> collected. The groundwater sample will be submitted under chain-of custody documentation to <br /> Sequoia Analytical, a California State-certified analytical laboratory for analysis as described <br /> below. <br /> I <br /> i <br /> 880-040.1 A/Workplan <br />