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Jan. 17. 2007 3:34PM No. 1093 <br />SCOPE OF WORK FOR INS PROPERTY <br />One boring will be advanced to approximately 30 feet below ground surface using dual <br />tube equipment. 2-3 borings will be advanced to 20 feet using single tube equipment. <br />One day of sampling is anticipated. <br />The proposed soil boring, will be advanced, using hydraulic direct push equipment, to <br />sufficient depth to sample two water-bearing zones (approximately at 15 feet and 30 feet <br />bgs respectively). <br />Soil samples will be collected continuously and collected in clear tubes, lining the inside <br />of the boring equipment. <br />Two grab groundwater samples will be collected (one from both the upper and lower <br />sandy water bearing zones). Groundwater grab samples will be collected using either a <br />bailer constructed of Teflon, PVC, or stainless steel, or a peristaltic pump outfitted with <br />PVC or Teflon tubing. Dual tube equipment will be employed and a hydro-punch <br />system, or 5 feet of slotted PVC screen, will be lowered into the boring to serve as <br />temporary well casing to collect groundwater samples. <br />Upon completion of sampling and data collection activities, the borings will be sealed, <br />from the bottom to the surface, using a mixture of neat cement and bentonite clay. The <br />top of the boring will be finished in a manner similar to surrounding materials.