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s <br /> Labels <br /> Sample labels contained the following information <br /> Project number Sampler's initials <br /> Sample number (1 e , well designation) Date and time of collection <br /> 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 Analysts 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 Well specifications (expected total depth, <br /> depth of water, and product thickness) <br /> Specific analytical parameters <br /> I <br /> • <br /> CM 1Common\QMRARCO\3rdQ9910548Q399 DOC 98Usg 1 A-6 PLodol"& <br />