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1 - <br /> Water Sample Labeling and Handling <br /> Water samples were preserved in laboratory cleaned, 40-rndhhter glass vials that contained <br />' concentrated hydrochloric acid as a preservative The water samples were sealed with <br /> Teflon-luted lids to eliminate air bubbles The sample containers were labeled to the field <br /> with the site identification, monitoring well number and depth, and date, and promptly <br /> placed in iced storage for transport to the laboratory The technician or geologist initiated <br /> chain-of-custody records in the field that accompanied the samples to a laboratory <br /> certified by the State of California for the analyses requested <br />' Samples that required overnight storage prior to slupputg to the laboratory were kept cool <br /> (4°C) in a refrigerator The refrigerator was kept in a warehouse which was locked when <br /> not occupied by an EMCON employee A sample/refrigerator log was kept to record the <br /> date and time that samples were placed into and removed from the refrigerator <br /> Samples were transferred from EMCON to an ARCO-approved laboratory by courser or <br /> taken directly to the laboratory by the environmental sampler Sample shipments from <br /> EMCON to laboratories performing the selected analyses routinely occurred within <br /> 24 hours of sample collection <br /> 1 <br /> SAON 1P7010805\08MI4W 3SL-95Vas 3 A-3 Rev 0,8/2195 <br />