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C The remaining 2 in 20 samples should be used by lab for spiking with reference materials <br /> for internal QC <br /> I Other QC procedures can be specified at the project manager's discretion See Table 3-2 <br /> (reference 2) attached <br /> I5 Decontamination of equipment in the field requires a detergent wash, with a distilled water rinse <br /> IREFERENCES <br /> 1 Soil Sampling Quality Assurance Users Guide, U S EPA Environmental Monitoring Systems <br /> LabQratory, Las Vegas, NV, EPA 600/4-84-043, May 1984 <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 /> I3 Test Methods for Evaluating Solid Waste, U S EPA, Office of Solid Waste and Emergency <br /> Response, Washington, D C, SW 846, July 1982 <br /> I <br /> I <br /> I <br /> I <br /> M <br /> I <br /> SOP 15 JIM <br /> �,1Page 2 of 2 <br /> ��JI �GROUNAWATER <br /> I _ TECHNOLOGY, INC <br />