Laserfiche WebLink
GR Field Methods and Procedures <br />remove accumulated sediments and draw groundwater into the well. Development continues <br />until the groundwater parameters (temperature, pH, and conductivity) have stabilized. <br />Storing and Sampling of Drill Cuttings <br />Drill cuttings are stockpiled on and covered with plastic sheeting and samples are collected and <br />analyzed for disposal classification on the basis of one composite sample per 100 cubic yards <br />of soil. Stockpile samples are composed of four discrete soil samples, each collected from an <br />arbitrary location on the stockpile. The four discrete samples are then composited in the <br />laboratory prior to analysis. <br />Each discrete stockpile sample is collected by removing the upper 3 to 6 inches of soil, and <br />them driving the stainless steel or brass sample tube into the stockpiled material with a hand, <br />mallet, or drive sampler. The sample tubes are then covered on both ends with teflon sheeting <br />or aluminum foil, capped, labeled, and placed in a cooler with blue ice for preservation. A <br />chain -of -custody form is initiated in the field and accompanies the selected soil samples to the <br />analytical laboratory. Stockpiled soils are covered with plastic sheeting after completion of <br />sampling. <br />A-3 <br />