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Union Safe Deposit Workplan <br /> 5.2 DECONTAMINATION <br /> Between sampling attempts, the sampler will be disassembled and washed in <br /> a trisodium phosphate(TSP)solution,rinsed twice with purified water and re- <br /> assembled with brass rings to minimize the potential of spreading contaminants <br /> among samples, if any were present. <br /> 5.3 DRILLING SPOILS <br /> Auger cuttings from the drilling operation will be placed in drums and retained <br /> on-site.The results of chemical analysis will be used to evaluate the appropriate <br /> disposal of any contaminated auger cuttings. <br /> Project Number: UN5622 Page 7 of 8 <br />