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by an EMCON employee A sample/refrigerator log was kept to record the date and time that <br /> samples were placed into and removed from the refrigerator <br /> Samples were transferred from EMCON to an ARCO-appro4 ed laboratory by couner or taken <br /> directly to the laboratory by the environmental sampler Sample shipments from EMCON to <br /> laboratories performing the selected analyses routinely occtt-red within 24 hours of sample <br /> collection <br /> Sample Documentation <br /> The following procedures were used during sampling and ana-ysis to provide chain-of-custody <br /> control during sample handling from collection through storag=e Sample documentation included <br /> the use of the following <br /> • Water sample field data sheets to document • Chain-of-custody record sheets for <br /> sampling activities in the field documenung possession and transfer of <br /> samples <br /> • Labels to identify individual samples <br /> • Laborator- analysis request sheets for <br /> document---ng analyses to be performed <br /> i Field Logbook <br /> In the field, the sampler recorded the following information on the water sample field data sheet <br /> (see Figure B-2) for each sample collected <br /> • Project number • Calculates and actual purge volumes <br /> • Client's name • Purging equipment used <br /> • Location • Sampling :quipment used <br /> • Name of sampler • Appearan-e of each sample (e g , color, <br /> turbidity, Sediment) <br /> • Date and time <br /> • Results of field analyses (temperature, pH, <br /> • Well accessibility and integrity specific t c aductance) <br /> • Pertinent well data (e g , casing diameter, • General cc mments <br /> depth to water, well depth) <br /> The water sample field data sheet was signed by the sample, and reviewed by the sampling <br /> coordinator <br /> SAC\NiWJU80%80514607CS-96\cjb 1 B-( Rev 0,10/25/96 <br />