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� s Soil samples are collected in new, pre-cleaned brass liners. These sample liners are either used by themselves, or are inserted in the sampling equipment. Soil samples are not collected with or in reusable equipment. Cone Penetrometer Took (M Testing The CPT method consists of advancing a cone-tipped cylindrical probe (1.7 inches in diameter) into the ground while simultaneously measuring the resistance to penetration. The CPT method determines soil lithology by comparing the force (cone bearing pressure) required to advance the probe (Qt) to the friction ratio (Rf) (Rf equals sleeve friction [F$] divided by the probe tip load, times the penetration pore pressure [Ud]). Computer generated CPT logs will be plotted in the field, providing the field representative a graphical log of subsurface soil lithology. A CPT test data report, which will include logs of all CPT data, graphical geologic logs, and additional information on the CPT technique, will be submitted with the final report. CPT testing will be performed in accordance with American Society of Testing and Materials (ASTM) Method D3441. The cone testing will be performed inside of a grout collar installed at the ground surface. The grout collar will allow the CPT contractor to backfill the boring as the steel rods are retracted from the hole. Continuous grouting will prevent cross contamination of water- bearing aterbearing zones that can occur through an open borehole. The boring will be backfilled to surface grade. An asphalt patch will be placed over the borehole. Direct Push Technoto Water Sam lin A well known example of direct push technology for water sampling is the Hydropunch*. For the purpose of this field method, the term hydropunch will be used instead of direct push technology for water sampling. Hydropunch samples will be collected by placing a disposable steel tip on the end of a two-inch diameter rod containing five feet of disposable 1-inch diameter slotted PVC casing. The sampling rods are pushed to the desired depth using the CPT truck. Depth discreet samples are obtained by retracting the rods approximately four feet, exposing the screen at the desired sampling interval. Samples are collected by lowering a bailer inside the steel rods and recovering groundwater. Groundwater is poured from the bailer into laboratory supplied glass vials. The water samples will be labeled, placed on ice, and delivered to a state-certified analytical laboratory along with the appropriate chain-of-custody documentation. The inside and outside of the two-inch diameter steel rods are steam cleaned between sampling events to prevent cross contaminating groundwater samples. Soil Sanaplil Soil samples will be collected at the CPT locations using a retractable sampler equipped with two 1.25-inch by 6-inch brass sleeves. Soil sampling is conducted by advancing the sampler to the top of the desired sampling depth. The CPT operator subsequently retracts Appendix A Page 5