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l t <br /> 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 /> • 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 minimum, the <br /> sample designation (including the depth at which the sample was collected), sample type, <br /> analytical request, date of sampling, and the name of the sampler The record sheet was signed, <br /> timed. and dated by the sampler when transferring the samples The number of custodians in the <br /> chain of possession was m rarnized A copy of the ARCO chain-of-custody record was returned <br /> to EMCON with the analytical results <br /> Groundwater Sampling and Analysis Request Form <br /> A groundwater sampling and analysis request form (see Figure B-3) was used to communicate to <br /> the environmental sampler the requirements of the monitoring event At a minimum, the <br /> groundwater sampling and analysis request form included the following 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 /> • <br /> SACSN'?'M80M80514607BS-96V1b2 A-7 Rev 0 I0/25/96 <br />