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{ <br /> 2400 Airport Way, Stockton, California <br /> Chevron U.S.A. Products Company �r April 13, 1994 <br /> Page 2 <br /> The tasks required to complete the scope of work are described below: <br /> TASK 1: SITE-SPECIFIC HEALTH AND SAFETY PLAN/BACKGROUND REVIEW/ <br /> PERMITTING <br /> A site-specific Health and Safety Plan has been prepared by Groundwater Technology as required <br /> by the Occupational Safety and Health Administration (OSHA)'Standard "Hazardous Waste <br /> Operations and Emergency Response" guidelines (29 CFR 19110.120)• The site-specific Health and <br /> Safety Plan had been prepared by Groundwater Technology personnel prior to the previous <br /> assessment conducted at the site. The document will be review'ved and signed by all Groundwater <br /> Technology personnel and subcontractors performing work at the site. <br /> Groundwater Technology will conduct a technical review of the pertinent information associated with <br /> the site. All applicable local and State permits pertaining to the proposed work will be obtained. <br /> TASK 2: REPAIR OF DAMAGED WELLHEAD <br /> Field information during past site visits indicates that the MW-41,wellhead has been buried and <br /> possibly damaged. Groundwater Technology personnel will locate and repair the damaged wellhead <br /> as needed. The wellhead will be cleared and a new locking cap and watertight bolted streetbox will <br /> be installed for wellhead protection. e <br /> f <br /> TASK 3: VECINITY WELLS SURVEY <br /> As requested by SJCPHS in their letter dated November 29, 1993, Groundwater Technology <br /> 3L <br /> personnel will research Department of Water Resources files to locate 'wells within a 2000 feet radius <br /> of the site. Specifically, data relating to well depth, date of installation;type of well, and owners of <br /> wells will be collected. These data will be tabulated and summarized in the final report. <br /> IF <br /> TASK a: SOIL BORINGS/SOIL SAMPLING AND ANALYSES ` <br /> Groundwater Technology will drill one soil boring at the location shown on Figure 2 using a <br /> truck-mounted drill rig equipped with 8-inch-diameter hollow-stem augers. The soil boring will be <br /> drilled to a depth of approximately 35 feet below ground surface (BGS) or 10 feet into groundwater <br /> to accommodate groundwater monitoring well installation. Soil samples will be collected at 5-foot <br /> intervals using a split-spoon sampler lined with 2-inch-diameter by 6-inch-long brass sample tubes. <br /> The hollow-stem augers will be steam cleaned before drilling, and sampling equipment will be <br /> Ig <br /> GROUNDWATER <br /> �!I! TECHNOLOGY <br />