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FIRESTONE Service Center 400 North El Dorado Street, Stockton, Cahforma <br /> October 6, 1993 Site Assessment Work Plan-2072.01 Page 2 of 7 <br /> 2.0 SITE SAFETY PLAN <br /> All activities undertaken at the site by Ryan-Murphy and its subcontractors will be governed by <br /> (site safety practices in accordance with) guidelines issued by the Occupational Safety and Health <br /> Administration (OSHA) All field personnel will possess a current 40-hour health and safety <br /> training certification (OSHA 29CFR 1910 120) In addition, the field supervisor directing <br /> operations at the site will have the required 8-hour supervisor training certification <br /> A pre-startup safety meeting will be held with all on-site personnel The meeting will outline the <br /> various safety concerns associated with exploratory drilling operations. A condensed Site Safety <br /> Plan will be reviewed, completed, and made available throughout on-site operations This plan <br /> briefly addresses work description, potential hazards, protective equipment, emergency <br /> procedures, nearby medical facilities, etc (a blank copy of the condensed plan is attached ) <br /> Considenng the proposed scope of work at this site, the potential hazards are primarily physical <br /> (i a moving equipment, falls, strains, etc ). No chemical, biological, or explosion hazards are <br /> believed to be associated with currently proposed work at this site <br /> 3.0 PROPOSED DRILLING OBJECTIVES/BORING LOCATIONS <br /> Analyses of soil samples collected during the November 12, 1991 overexcavation indicate that <br /> petroleum contamination remains in the east, west, and south sidewails and the floor of the <br /> former UST excavation <br /> The proposed exploratory drilling project includes five bonngs (Figure 2 - attached) These <br /> bonngs will be used to delineate the extent of soil contamination, both vertically and <br /> horizontally, within the limits of current physical structures and property boundaries Delineation <br /> to nondetect at acceptable detection limits (gasoline at 1-ppm and all BTEX compounds at 5-ppb <br /> each) is required. <br /> In an attempt to define the extent of vertical contamination below the pit floor, one boring will <br /> be installed through the center of the former excavation Based on observed soil types and <br /> existing analytical information obtained from previous work, boring termination depths of less <br /> than 30-feet are anticipated <br /> I <br /> RYAN-MURPHY, INCORPORATED Deuver <br /> FavirommeaW Combmetion Management I" Angeles <br />