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u <br />C <br />I. <br />r <br />In order to determine the dissolved concentrations of the compounds <br />specified, appropriate field filtration techniques will be implemented <br />by attaching a disposable acrylic copolymer filter directly to the <br />pump effluent line with a high-pressure fitting. As the bladder pump <br />cycles, the effluent will be pressured through the filter and directed <br />into the appropriate containers. Each filter will be used only once <br />and then discarded. <br />When a Teflon bailer is used to collect ground -water samples, filtra- <br />tion will be preformed by emptying the contents of the bailer into a <br />high-pressure transfer vessel. A disposable acrylic copolymer filter <br />will be threaded onto the transfer vessel at the discharge point, and <br />the vessel will be sealed. Pressure will be applied to the transfer <br />vessel with a hand pump, and the filtrate will be directed into the <br />appropriate containers. Filters will be discarded after each use. <br />One field blank and one trip blank bottle blank made with organic - <br />free <br />) 9 <br />free water will be carried into the field and delivered with the <br />samples to the laboratory. The field blank will be opened in the <br />field during sample collection to detect any influences from the <br />ambient atmosphere on sample quality. The trip blank will remain with <br />the bottles used for sampling for the duration of the sampling event. <br />At no time will the trip blank be uncapped. A trip blank provides a <br />check on bottle -cleaning procedures. One duplicate well sample will <br />also be collected and analyzed for all parameters. <br />All sampling containers will be prelabeled with preservatives informa- <br />tion prior to initiating the sampling event. The labels will be <br />completed during sample collection. Containers will be placed on ice <br />immediately upon sampling until delivery to the laboratory. <br />At the time of sampling, the sample will be logged on a chain -of - <br />custody form, which will accompany the sample to the laboratory. At <br />the laboratory, EMCON personnel will accept the samples by signing the <br />PJ9 9390313.00D <br />