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1 <br /> ® name of sampler <br /> G date and time <br /> well accessibility and integrity <br /> 1 0 pertinent well data (e.g., casing diameter, depth to water, <br /> well depth) <br />' C calculated and actual purge volumes <br /> U purging equipment used <br /> u sampling equipment used <br /> G appearance of each sample (e.g., color,turbidity, sediment) <br />' G results of field analyses (temperature, pH, specific <br /> conductance) <br /> 0 general comments <br /> The field logbook was signed by the sampler. <br /> Labels <br /> Sample labels contained the following information: <br /> C project number <br />' G sample number (i.e., well designation) <br /> G sampler's initials <br />' G date and time of collection <br /> U type of preservative used (if any) <br /> Sampling and Analysis Chain-of-Custody Record <br /> A Mobil Chain-of-Custody Record was signed, timed, and dated by the <br /> sampler when collecting and transferring the samples. Custody transfers <br /> were recorded for each individual sample; for example, if samples were split <br />' and sent to more than one laboratory, a chain-of-custody record sheet <br /> accompanied each sample. The number of custodians in the chain of <br /> possession were minimized. A copy of the Mobil Chain-of-Custody Record <br />' was returned to EMCON Associates with the analytical results. <br /> pjO\Ot9Olof900020.3az A - 5 Rev. 0 .January 27, 1993 <br />