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RESNA industries Inc <br /> ,. Quality Assurance/Quality Control Plan <br /> Revised November 1992 <br /> ✓ inclusive dates and times of possession <br /> ✓ requested analysis for each sample <br /> ' 5.3 Delivery of Samples to Laboratory <br /> Samples will be delivered to the laboratory on a daily basis. Samples will be refrigerated <br /> ' to approximately 4°C for shipping Shipping containers will be sealed with security tape <br /> to assure sample integrity during shipping Delivered samples will be accompanied by <br /> a chain-of-custody record The laboratory shall note on the chain-of-custody that samples <br /> were properly preserved and security tape was intact upon arrival <br /> 6.0 SAMPLING AND DRILLING EQUIPMENT DECONTAMINATION <br /> ' All equipment used for drilling and sampling will be decontaminated prior to use All equipment <br /> used for collection of more than one sample, such as bailers and spoons, will be decontaminated <br /> between each use to prevent cross contamination between samples. Drilling equipment will be <br /> decontaminated prior to commencing drilling at each hole Well construction materials will be <br /> ' cleaned as necessary, prior to installation <br /> Equipment and well material decontamination will be conducted on an impermeable surface and <br /> all decontamination effluent will be contained All surfaces of the equipment will be thoroughly <br /> ' decontaminated using a steam cleaner. The equipment will be placed on a drying rack for air <br /> ' drying. The decontamination water will be stored in containers certified for hazardous materials <br /> storage and disposed of in an approved manner <br /> Sample equipment to be used for pesticides and organic analysis will be washed in a <br /> ' nonphosphate detergent(Alconox or equivalent) and rinsed with tap water, followed by deionized <br /> water If the equipment is for metals analysis, the initial rinse will be conducted with 0 1 N <br /> nitric acid followed by tap water and deionized water <br /> I <br /> QAQC1092 FNL 4 <br />