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I <br /> l <br /> S � ' <br /> ,. C. The remaining 2 in 20 samples should be used by lab for spiking with reference materials } <br /> for internal QC. <br /> Other QC procedures can be specified at the project manager's discretion. See Table 3-2 <br /> (reference 2) attached. <br /> I <br /> 5. Decontamination of equipment in the field requires a detergent wash, with a distilled water rinse. ' <br /> i <br /> REFERENCES <br /> i <br /> �. Soil Sampling Quality Assurance Users Guide, U.S. EPA Environmental Monitoring Systems <br /> Laboratory, Las Vegas, NV, EPA 600/4-84-043, May 1984. i <br /> 2. Preparation of Soil Sampling Protocol. Techniques and Strategies, U.S. EPA, Environmental <br /> Monitoring Systems Laboratory, Las Vegas, NV, EPA 600/4-83-020, August 1983 (PB83-206979), <br /> i <br /> 3. Test Methods for Evaluating Solid Waste, U.S. EPA, Office of Solid Waste and Emergency <br /> i Response, Washington, D.C_, SW 846, July 1982. 't <br /> t E <br /> I � <br /> l <br /> E <br /> i k <br /> l <br /> i <br /> i <br /> i <br /> I <br /> i <br /> SOP 15 Page 2 of 2 a <br /> IL._� * GROUNDWATER <br /> L=TECHNOLOGY, INC. i <br /> 4 <br />