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 />