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GE ";Z <br /> GENESIS ENGINEERING& REDEVELOPMENT <br /> • The drilling subcontractor will be advised to ensure that the rig not leak any <br /> fluids that may enter the borehole or contaminate equipment that is placed into <br /> the borehole <br /> • Lubricants shall not be used on any equipment that is placed into the borehole <br /> • All waste materials generated as a result of drilling activities shall be handled <br /> and disposed of as described in Section 2.5 <br /> 2.3.1 Direct Push Drilling <br /> Direct push drilling technology will be used to advance reconnaissance borings for soil and <br /> grab groundwater sampling. All reconnaissance borings will be hand augured to a depth of 5 <br /> feet bgs, as an added precaution to avoid subsurface utilities or other structures. In the upper <br /> 5 feet of soil, logging will be made from the auger soil cuttings. <br /> The direct push drilling process consists of a truck mounted hydraulic system used to push a <br /> 4-foot length, 1.5-inch diameter sampler containing a vinyl acetate plastic sample sleeve into <br /> the subsurface to collect soil samples. This drilling technique will create an approximately <br /> three inch diameter boring. The soils brought to the surface in the sample sleeves shall be <br /> continuously logged to a depth of approximately 25 feet below ground surface. <br /> Soil cuttings generated during this process shall be placed in 55-gallon drums, labeled, and <br /> moved to a common drum staging area. All direct push boreholes shall be abandoned <br /> according to state and local guidelines. Completed boreholes advanced for collection of soil <br /> samples only shall be grouted fr m the bottom up using a tremie pipe with a high-solids <br /> bentonite grout bentonite of Plu . The borehole shall be backfilled to within 1-foot of <br /> d > the ground surface. Based on the i isting surface material, a concrete, asphalt, or soil plug <br /> shall be installed at the surface of ea boring location. <br /> r»�kaZ <br /> 2.3.2 Auger Drilling <br /> Hollow-stem auger drilling technology will be used to advance the borings for installation of <br /> the shallow Monitoring Wells. The monitoring well boreholes will be advanced using a <br /> truck-mounted drill rig equipped with hollow-stem augers to ream out the direct push <br /> boreholes, and advance the boreholes to the selected depth interval. Continuous soil samples <br /> will be collected and logged below the soil/water interface to the maximum depth of the hole. <br /> Soil cuttings will be placed in 55-gallon drums, labeled, and moved to a common drum <br /> staging area. <br /> Ripon Farm Services,Inc. 3 of 15 <br /> Sampling and Analysis Plan <br /> July 2009 <br />