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t <br /> Groundwater 5amplina <br /> Samples for volatile analysis are collected in pre-cleaned 40-ml VOA vials provided <br /> by the analytical laboratory. The VOA are checked in the field for headspace or air <br /> bubbles. if these occur, another sample is collected. Semi-volatile and metal- <br /> analysis samples are collected, filtered, if necessary, and contained according to <br /> the specific method appropriate for that analysis. The samples are assigned a <br /> unique identification including the well name, date and time of collection, samplers <br /> initials, and site address. The sample is recorded on the chain-of-custody and <br /> immediately placed on ice in an iced cooler for transport to the laboratory. <br /> r <br />�i <br /> i <br />