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4.0 SITE INVESTIGATION PROCEDURES AND SAMPLING PROTOCOLS <br /> r The procedures to be used to complete the proposed scope of work outlined in Section 3.0 <br /> 1•� are provided in this section. The Site Health and Safety Plan for these activities is included <br /> as Appendix A. Quality Assurance/Quality Control procedures that will be implemented and <br /> maintained by Terranext for this scope of work are provided in Appendix B. <br /> 4.1 Permits and Clearances <br /> Necessary permits for drilling will be obtained from the San Joaquin County Public Health <br /> LServices - Environmental Health Division (the County) prior to initiating fieldwork. In <br /> addition, Underground Service Alert subscribing companies will be notified of field activities <br /> a minimum of 48 hours prior to drilling activities. Also, prior to drilling, a private utility <br /> j locator will be used to clear the drilling locations. <br /> 4 <br /> 4.2 Soil Boring Advancement and Soil Sampling Procedures <br /> As outlined in Section 3.0, three soil borings will be drilled and soil samples collected at the <br /> locations shown on Figure 2. <br /> The soil borings will be drilled using a truck-mounted drill rig equipped with 8-inch outside <br /> diameter hollow-stem augers. The soil borings will be drilled to the top of the water-bearing <br /> zone, which is anticipated to be approximately 45 feet bgs. Continuous soil cores will be <br /> L collected from each borehole using a 5-foot long core barrel beginning at ground surface and <br /> extending to the total depth of the borehole. Soil samples will be collected directly from the <br /> core barrel at approximate 5-foot intervals beginning at 3 feet bgs and extending to the total <br /> depth of the borehole. Soil samples selected for potential laboratory analysis will be <br /> immediately withdrawn from the sampler and placed in 8-ounce glass jars and sealed with <br /> 809-001.wkp/03-06-97/u/keydara/workplan 6 <br /> TerraNext <br />