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i <br /> I <br /> 1 <br /> SECTION III <br /> METIIODS <br /> r, <br /> r' + A. Sources <br /> Brown and Caldwell makes extensive use of methods pre- <br /> scribed by the USEPA. Other methods are taken from <br /> Standard Methods for the Examination of Water and <br /> Wastewater, 16th Edition, APHA-AWWA-4JPCP, 1985. <br /> Primary USEPA sources of methods for the analysis of <br /> j aqueous samples include: <br /> Methods for organic Chemical Anal sis of Municipal and <br /> Industrial Wastewater, EPA-G 0 4-52-0 , Jury <br /> Methods for the Chemical Analysis of Water and Wastes_, <br /> )� <br /> EPA-600/4-79-020, Revised, March 1983. <br /> Federal Register, 40 CPR Part 136, October 26, 1984- <br /> Soil and other solid samples are analyzed according to the <br /> procedures of fest Methods for Evaluating Solid Waste, <br /> USEPA SW-846, July 1982. <br /> A number of additional EPA methods are summarized in the <br /> "AB 1803 Methods Manual" issued by the California <br /> j Department of Health Services, 1984. <br /> Air analysis is based on the NIOSH Manual of Analytical <br /> Methods, 2nd and 3rd editions, issued by the Rational <br /> Institute of Occupational Safety and Health of the Public <br /> Health Service. <br /> Additional methods for various sample types are taken from <br /> such sources as the United States Geological Survey (USGS) , <br /> .:: the American Society for Testing and Materials (ASTM), and <br /> I the Association of official Analytical Chemists (ADAC) . <br /> Finally, a number of special methods have been developed by <br /> Brown and Caldwell or adapted from literature sources for <br /> specialized applications. These methods are written up and <br /> maintained in a Brown and Caldwell methods reference <br /> manual. <br /> i <br />