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+ The well's proximity to the assumed source of contamination, <br /> The well's relationship to the source relative to the assumed direction of groundwater <br /> flow, and <br /> • The organic vapor screening results from soil samples from the well boring <br /> Groundwater samples will be collected with pre-cleaned, disposable, Teflon bailers The <br /> samples will be transferred from the bailers directly to laboratory supplied, pre-cleaned <br /> sample bottles No secondary transfer vessels will be used <br /> B 7 3 QUALITY ASSURANCEQUALITY CONTROL <br /> During the quarterly sampling events, one quality assurance/quality control sample (an <br /> equipment blank) will be collected to assess the validity of the groundwater analyses The <br /> equipment blank will be used to assess the cleanliness of the sampling equipment One <br /> duplicate sample and one trip blank will also be collected <br /> All samples will be preserved on ice immediately after collection, and while in route to the <br /> laboratory Chain-of-custody will be documented, and the chain-of-custody form will <br /> accompany the laboratory report <br /> s�. <br /> ' r , <br /> , I <br /> I r r r 1 <br /> r <br /> I I I I <br /> r r <br /> r <br /> t r <br /> ,I <br /> 1 II I l <br />