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DRAFT <br /> Work permits are required by the San Joaquin County Public Health Services <br /> Environmental Health Division (the County), the overseeing regulatory agency for this <br /> work, DEI will obtain these permits prior to the commencement of work. <br /> This Work Plan has been prepared as the field control document identifying the drilling <br /> and sampling activities, project personnel and assignments, applicable standard operating <br /> procedures, field documentation and reporting requirements, and the sample plan and <br /> laboratory requirements that will govern the project work for the Phase H Environmental <br /> Site Assessment activities. In addition to this Work Plan a Site Specific Safety and Health <br /> Plan Addendum No. 1 has been prepared for this project. <br /> DESCRIPTION OF FIELD PROTOCOL <br /> Soil Sampling and Analysis <br /> Soil borings will be completed using an extendible hand auger to a maximum depth of ten <br /> feet below ground surface. Concrete and asphalt removal equipment will be onsite for use <br /> in areas where native materials are concealed. Soil sampling will be supervised by a DEI <br /> geologist. A geologic log will be prepared describing the materials encountered. One soil <br /> sample will be collected from a depth between 8 to 10 feet below ground surface in the <br /> vicinity of each of the four hydraulic lifts. <br /> The immediate work area will be covered by Visqueen plastic sheeting and soils removed <br /> from the borehole will be transferred immediately to DOT certified 55-gallon open top <br /> drum. All boring and sampling equipment will be decontaminated prior to the start of a <br /> new borehole and sampling. All samples will be placed in clean containers, properly <br /> labeled with a unique identifying number, packed in ice and sent to the laboratory for <br /> analysis. <br /> Upon completion of the borehole and sampling, the borehole will be backfilled with a <br /> mixture of Portland cement and bentonite. Removed concrete and asphalt will be patched <br /> to its original condition. <br /> While field work is being performed, a PID meter will be used to check for the presence of <br /> potentially hazardous vapors emanating from beneath the concrete floor or from boreholes. <br /> Field work will be performed using Level D protective clothing. <br /> Privileged and Confidential Prepared at the Request of Counsel <br /> NPR-95-RAS-029 DEI Project No.2569 <br /> 2 <br />