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shows a typical chain-of-custody record. Custody transfers were <br /> recorded for each individual sample. EMCON retains copies of the <br /> chain-of-custody records on file. <br /> Laboratory Analysis Request Sheet <br /> A laboratory analysis request sheet, shown in Plate C-3, accompanied <br /> the samples to the laboratory. The request sheet served as official <br /> communication to the laboratory of the particular analyses required <br /> for each sample and provided evidence that the chain-of-custody was <br /> complete. <br /> PURGING AND SAMPLING PUMP INFORMATION <br /> The Well Wizard pump and tubing model numbers for Monitoring <br /> Wells MW-1 through MW-4 are listed below: <br /> • Sampling Pump - Pump Model No. P-1201 Tubing Bundle Model <br /> No. PT-5100 <br /> ® Purge Pump - Pump Model No. HR-4500 Tubing Bundle Model <br /> No. P-5500 <br /> The pumps were set at the following depths (in feet from the ground <br /> surface) . <br /> AL1 Purge Pump aamhng Pump <br /> MW-1 144 149 <br /> MW-2 137 142 <br /> MW-3 139 144 <br /> MW-4 132 137 <br /> PJ9 9390102.00D - <br /> C9 <br />