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Appendix A <br /> Generally two soil samples from each soil boring will be submitted for chemical analysis <br /> unless otherwise specified in the scope of work. Soil samples selected for analysis <br /> typically represent the highest PID reading recorded for each soil boring and the sample <br /> just above first-encountered groundwater. <br /> Stockpiled Drill Cuttings and Soil Sampling <br /> Soil generated during drilling operations will be stockpiled on-site. The stockpile will be <br /> set on and covered by plastic sheeting in a manner to prevent rain water from coming in <br /> contact with the soil. Prior to collecting soil samples, Stratus personnel will calculate the <br /> approximate volume of soil in the stockpile. The stockpile will then divided into sections, <br /> if warranted, containing the predetermined volume sampling interval. Soil samples will <br /> be collected at 0.5 to 2 feet below the surface of the stockpile. Four soil samples will be <br /> collected from the stockpile and composited into one sample by the laboratory prior to <br /> analysis. The soil samples will be collected in cleaned brass, two by six inch tubes using <br /> a hand driven sampling device. To reduce the potential for cross-contan 1 ination between <br /> samples, the sampler will be cleaned between each sampling event. Upon recovery , the <br /> sample container will be sealed at each end with Teflon sheeting and plastic caps to <br /> minimize the potential of volatilization and cross-contan1 ination prior to chemical <br /> analysis. The soil sample will be labeled, placed on ice, and delivered to a state-certified <br /> analytical laboratory, along with the appropriate chain-of-custody documentation. <br /> Cone Penetrometer Test(CPT) <br /> The testing will be completed using a 25 ton CPT rig. The dead weight of the CPT rig is <br /> used as a reaction to push the cone penetrometer using a hydraulic ram located at the <br /> center of the rig. Soil parameters such as cone bearing, sleeve friction, friction ratio. Pore <br /> water pressure are measured as the cone penetrometer is advanced. These measurements <br /> are sent uphole through the cone rods to an on-board data acquisition system. All data is <br /> processed in real time in the field so that decisions can be made by the onsite <br /> professional. The CPT holes will be grouted by pushing a tremie pipe to the test hole <br /> termination depth followed by pumping under pressure bentonite grout as the tremie pipe <br /> is pulled from the hole. <br /> Direct Push Technolop_y,Water Sampling <br /> A well known example of direct push technology for water sampling is the Hydropunce. <br /> For the purpose of this field method the term hydropunch will be used instead of direct <br /> push technology for water sampling. <br /> The hydropunch is typically used with a drill rig. A boring is drilled with a hollow stem- <br /> augers to just above the sampling zone. In some soil conditions the drill rig can push <br /> directly from the surface to the sampling interval. The hydropunch is conveyed to the <br />