Laserfiche WebLink
Wright Environmental Services, Inc. <br />Split spoon soil samples in the brass liners in the sampling tool (depending on <br />sample recovery) will be retained for chemical or physical testing. The samples will <br />be labeled and sealed in the field in their original liners. Sample liners ends will be <br />sealed with aluminum foil or Teflon®, capped with clean cap plugs, and labeled and <br />logged onto chain of custody forms. <br />All samples retained for chemical analysis will be stored on ice in a clean, covered <br />cooler-box/ice chest for transport to the Laboratory (see chain-of custody below). <br />The remaining soil sample will be extruded from the other rings in the field <br />and lithologically logged using the USCS and collecting field evidence of <br />contaminants and geologic information. Sampler shoe cuttings logging, blow <br />counts, drill rig response and bit penetration rate and sample recovery may also be <br />logged. A lithology exploratory boring log will be made of the materials <br />encountered and sample depth for each boring. The log will include field <br />descriptions of the soil lithologic variations, moisture conditions, geologic data, and <br />any unusual characteristics which may indicate the presence of chemical <br />contamination. Where soil samples are collected from excavations, the USCS soil <br />classification system will be used to classify the soil sample. <br />Contaminated drill cuttings and the soils samples not retained for chemical analysis <br />will be placed in 55-gallon drums or on plastic sheets and covered pending chemical <br />analysis and proper off-site disposal as needed. Fluids produced during drilling will <br />be drummed to minimize surface contamination. Ultimate proper storage and <br />disposal of contaminated materials is the responsibility of the Client or site owner. <br />Reconnaissance Soil Sampling Procedures <br />Soil sampling tools (split spoons, cores, etc.) will be disassembled, steam- <br />cleaned or cleaned in soapy (TSP) water, rinsed with clean tap water and finally <br />rinsed with or distilled water, and air-dried prior to taking each sample. The cleaned <br />tools will then be reassembled with similarly cleaned, dry brass sample liners and <br />carefully lowered into the hollow stem augers for the collection of the next sample. <br />The drill rig will be decontaminated as needed and at the discretion of the logging <br />geologist. <br />When sampling stockpile soils or during soil excavations, the soil sample will <br />be collected by the following procedure; a clean brass liner will be pushed into the <br />stockpile or excavation sidewall, or soil in the excavator bucket. About two inches of <br />soil will be brushed away and the liner pushed into the soil, completely filling it. <br />The liner may be advanced by slide hammer and spoon or directly hammering the <br />ring into the soil. The liner is then removed, sealed, labeled and logged onto chain- <br />of-custody forms and packed in a chilled ice chest. <br />VVES Sampling Protocols Page 2