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Labels <br /> Sample labels contained the following information: <br /> • Project number • Sampler's initials <br /> • Sample number (i.e., well designation) . Date and time of collection <br /> a Sample depth • Type of preservation used (if any) <br /> Sampling and Analysis Chain-of-Custody Record <br /> The ARCO chain-of-custody record initiated at the time of sampling contained, at a <br /> minimum, the sample designation (including the depth at which the sample was collected), <br /> sample type, analytical request, date of sampling, and the name of the sampler, The record <br /> sheet was signed, timed, and dated by the sampler when transferring the samples. The <br /> number of custodians in the chain of possession was minimized. A copy of the ARCO <br /> chain-of-custody record was returned to Pinnacle with the analytical results. <br /> Groundwater Sampling and Analysis Request Form <br /> A groundwater sampling and analysis request form (see Figure A-3) was used to <br /> communicate to the environmental sampler the requirements of the monitoring event. At a <br /> minimum, the groundwater sampling and analysis request form included the following <br /> information: <br /> • Date scheduled • Well number <br /> • Site-specific instructions • WeIl specifications (expected total depth, <br /> • Specific analytical parameters depth of water, and product thickness) <br /> SAC\A:12[86QM2.DOC-981dsdntos:l A-( <br /> Rev.d,9/7198 <br />