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Drill Cuttings <br /> Drill cuttings were segregated and stockpiled along with the existing <br /> stockpiled soil <br />' Abandonment of Bore Holes <br />' AlI bore holes were backfilled with a grout mix consisting of sand, <br /> cement, bentonite powder, and clean water in the following ratios <br /> One 94-pound sack of Portland cement, <br /> Two sacks of Lonestar 120 sand, <br />' • 5 pounds of bentorute powder, and <br /> • 4 5 to 6 5 gallons of clean water <br /> Water Level Measurements <br /> Groundwater elevations were measured in the three developed <br /> monitoring wells The elevations of the tops of the casings were <br /> surveyed in relation to a permanent on-site reference point Water <br /> levels were determined using the wetted tape method to reference the <br /> depth to groundwater to the top of the surveyed well casing All <br /> water levels were measured at the same time The water elevations <br /> were used to determine the groundwater gradient and direction of <br />' flow <br /> Groundwater Sample Collection <br /> A hydropunch was used to collect groundwater samples in the <br />' bonngs The method allows the sampling of groundwater without <br /> the necessity of well installation The hydropunch employs a probe <br /> made of 2-inch steel tube equipped with a detachable penetration <br />' cone The probe is driven into the formation material in advance of <br /> hollow stem augers The probe is then retracted from the cone to <br /> expose a screen to the potential water bearing zone Water samples <br />' are collected with a Teflon bailer, which is introduced into the probe <br /> Exact locations for collection of groundwater samples with the <br /> hydropunch were made in the field based on results of analyses of <br />' soil samples Hydropunch samples were used to assess the nature <br /> 23 <br /> 1 <br />