Laserfiche WebLink
Section No 6 <br /> Revision No 1 <br /> Date January 13 , 1992 <br /> Page 33 of 55 <br /> 6 5 4 Near Surface Soil Samples -" <br /> Near surface soil samples will be obtained by manually driving an Arts <br /> core sampler with a 6-inch long by 2-inch diameter aluminum liner tube The <br /> sampler will be driven into undisturbed materials using a 10-pound slide <br /> hammer. Between sampling intervals, the borehole will be advanced using a <br /> 3-1/4 diameter hand auger <br /> Upon removal of the drive sampler from the borehole, the ends of the <br /> aluminum tubes will be briefly inspected in the field to identify lithology. <br /> Soil descriptions will be prepared and submitted using the Unified Soil <br /> Classification (USC) for soils and unconsolidated materials All sampling <br /> will be completed by the project geologist/hydrogeologist The appropriate <br /> soil description, stratigraphic changes , geologic notation, sampling <br /> intervals and recoveries, blow counts, and other relevant data will be <br /> recorded on the field logs <br /> Immediately following visual inspection, the ends of the sampling tubes <br /> will be covered with Teflon sheeting and plastic caps. The caps will be <br /> fastened onto the aluminum tubes using adhesiveless silicon tape to provide <br /> an airtight seal Each sample will be appropriately labeled showing the <br /> date, job number, borehole number, sample interval, and analyses to be <br /> completed All samples will be stored and transported in accordance with <br /> Section 6 6 <br /> All sampling equipment will be washed with a laboratory trade detergent, <br /> and then double rinsed with deionized water prior to and between uses to <br /> i - <br /> 6-33 <br />