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.- . .. ..,s, a -mac <br /> � `' � _ _'_moi^ -..'�'.'. F7"ai _ r✓ � _ <br /> ti <br /> i� <br /> i <br /> 4.0 DECONTAMINATION AND CONTAINEICZIZATION <br /> 4.1 WATER SAMPLING EQUIPMENT DECONTAMINATION <br /> All sampling equipment and apparatus, including internal components, will be thoroughly <br /> decontaminated prior to use and between sample points to avoid cross-contamination. All <br /> equipment for water sampling will be washed with a laboratory-grade detergent followed by <br /> a rinsing with drinking-quality water. Ample time will be given for the equipment to dry <br /> prior to reuse. Sampling equipment used to collect samples for organic analysis will not be <br /> allowed to come into contact with any type of plastic, such as plastic storage bags. Solvents <br /> used to decontaminate sampling equipment will be stored in glass containers. Sampling <br /> equipment that is not readily decontaminated will be discarded after each use. Discarded <br /> materials, including decontamination solutions, will be accumulated and stored in appropriate <br /> receptacles for proper disposal. The actual disposal of the decontamination materials will be <br /> the responsibility of the client. <br /> Purge equipment including bailers and pumps will be decontaminated by flushing/pumping <br /> laboratory-grade detergent solution, potable water, then Type H reagent water through the <br /> µ components. The exterior of the pump inlet hose may be steam cl;.aned. <br /> 4.2 CONTAINERIZATION OF WASTES <br /> Procedures to be followed in containerizing, transporting to and temporarily storing at an <br /> accumulation area, sampling, evaluating analytical results, and disposing of investigation- <br /> deiived wastes are discussed below. <br /> o:tis�so3ewn¢o�z�.Fc 15 <br />