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7h3adWd1&Rdb <br /> containers with specific preservative and post collection preservation methods should be used. <br /> The filled sample containers should be immediately placed in a chilled cooler awaiting delivery <br /> to the analytical laboratory. All samples should be handled according to Chain of Custody SOP. <br /> All samples will be delivered to the laboratory as soon as possible. If possible, samples will be <br /> shipped on the same day as they are collected. If samples must be retained due to weekend <br /> sampling (Friday through Sunday), the lab shall be notified as to the time sensitive nature of the <br /> samples. <br /> PRECAUTIONS <br /> • Refer to the HSP for appropriate PPE. <br /> • Sampling wells in order of increasing chemical concentrations (known or anticipated) is <br /> preferred. <br /> REFERENCES <br /> • Gass, Tylor E.; Barker, James F.; Dickhout, R. ; Fyfe, J. S.; 1991 , Test Results of the <br /> Grundfos Ground-water Sampling Pump , From: 'Proceedings of the Fifth National <br /> Symposium on Aquifer Restoration and Ground Water Monitoring" <br /> • M°Alary, T. A. and Barker, J. F.; 1987, Volatilization Losses of Organics During Ground <br /> Water Sampling From Low Permeability Materials In "Ground Water Monitoring <br /> Review" Fall 1987. <br /> • Nielsen, David M., 1991 . Practical Handbook of Groundwater Monitoring, Lewis <br /> Publishers. Chelsea, MI. <br /> • Pals, Robert W. and Powell, Robert M.; 1992, Acquisition of Representative Ground <br /> Water Quality Samples for Metals In "Ground Water Monitoring Review" Summer 1992. <br /> 2597. 11 .DGD Page 4 of 4 December 2004 <br />