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Section 2: Field Activities <br />2.1 Field Preparation <br />Field preparation includes the following: <br />Develop a site-specific Health and Safety Plan (HASP). The HASP for this investigation is <br />under separate cover, and will be maintained onsite at all times. <br />Obtain boring permits from San Joaquin County Environmental Health Department. <br />Make all necessary notifications and interactions with BNSF to comply with BNSF and FRA <br />railroad worker protection requirements. Confirm track protection with the Yard. <br />Mark the boring locations with white paint or stakes and notify Underground Service Alert <br />(USA) at least 48 hours in advance. <br />Local BNSF employees in charge of utilities will be notified of the sample locations to <br />provide knowledge of known utilities. <br />In addition, the potential presence of underground pipelines in the proposed drilling areas <br />will be assessed by a private contractor using non-invasive geophysical means. <br />The drilling contractor will provide a vacuum truck (an "air knife" device) to evacuate each <br />borehole to 7 feet bgs. If any utilities are revealed, the soil boring will be relocated and the <br />air-knife process repeated. Soil will be replaced and compacted in the air-knife borehole to <br />provide support for the drilling rods. <br />Subcontract with a drilling contractor licensed in California. Kennedy/Jenks will confirm that <br />the subcontractor meets insurance requirements and the personnel have the complete <br />BNSF and FRA training. <br />Arrange with a state-certified laboratory for analysis of the samples. <br />2.2 Soil Boring and Sample Collection <br />2.2.1 Soil Boring Locations <br />The proposed soil borings are shown on Figure 2. As explained above, based upon the results <br />of the LIE program, two soil borings are proposed: KB-03 near LIF #4 to assess the vertical <br />extent of LNAPL in the soil column and obtain soil samples and a groundwater sample; and <br />KB-04 at the excavation shown in the vicinity of the former locomotive release. <br />Additional Soil and Groundwater Sampling Work Plan, <br />BNSF Mormon Yard, Stockton CA <br /> <br />Page 5 <br />\INvybnsf2 bnsfwp wp1201811899020 00_mormon_yard1work_plan_x112018 mormon yard sampling wp_mwm doc