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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 /> Other QC procedures can be specified at the project manager's discretion. See Table 3-2 <br /> (reference 2) attached. <br /> 5. Decontamination of equipment in the field requires a detergent wash, with a distilled water rinse. <br /> REFERENCES <br /> 1. Soil Sampling Quality Assurance Users Guide, U.S. EPA Environmental Monitoring Systems <br /> Laboratory, 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 /> 3. 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 /> SOP 15 <br /> Page 2of2 <br /> GROUNDWATER <br /> 1L.J!TECHNOLOGY,INC. <br />