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RUSS CHAPIN 209-464-6947 09-05-95 08:23 P.04 <br /> second phases. Unit costs for this work should be provided. Perform <br /> effectiveness tasting to evaluate the adequacy of the- existing <br /> extraction well system of treating the known plume area and <br /> propose modification to the remedial system as may be needed to <br /> i achieve the objectives. <br /> Sia co n ti- E ase - Would be .to install additional vapor extravtion <br /> 1, wells (VEW), air recharge wells (ARW), and air sparge wells (ASW) <br /> for use In expanding the area of corrective action, install the piping <br /> system to connect these wells to the vapor extraction and treatment <br /> (VET) center, and supply the needed materials associated with this <br /> phase of work. Cost for performing this work would be submitted to <br /> the USTCFP for Pre-Approval and the unit costs per VEW/ARW/ASW <br /> and other facets of the proposed work should that already provided. <br /> f , The bidder is requested to submit an outline of their corrective <br /> action plan for these phases and a proposed schedule for <br /> Implementing these two phases. Of specific interest is the <br /> operation of the first phase before moving into the second phase, <br /> This work must be performed in accordance with local, state, and <br /> federal regulations and guidelines that are applicable to this work. <br /> TASK 1: PROJECT PREPARATION <br /> • Conduct a site background investigation to obtain the information <br /> necessary to carry out the tasks required for this corrective <br /> action work. <br /> • Prepare a Health and Safety (H&S) Plan. <br /> • Prepare RAP and work schedule pursuant to the Guidelines <br /> • Submit the H&S Plan, RAP, and work schedule to SJCDEH for <br /> review. <br /> • Obtain well permits as needed for the second phase of corrective <br /> action. <br /> t <br /> • Obtain APCD permit fgr operation of vapor extraction system <br /> R through the second phase of corrective action. <br /> • Prepare a site closure, work pian proposing well abandonment <br /> procedures <br /> TASK 2: REMEDIAL EOUIPMENT. MATERIALS, AND SUPPLIES <br /> I • Corrective action equipment and cost for purchase/lease., <br /> • Corrective action material and supplies that may be needed to <br /> accomplish the cleanup goals. <br /> t <br /> page 3 <br />