"Methods for Collection and Processing of Surface-Water and Bed-Material Samples for Physical and Chemical Analyses" In Reply Refer To: December 5, 1990 WGS-Mail Stop 412 OFFICE OF WATER QUALITY TECHNICAL MEMORANDUM 91.02 Subject: PUBLICATIONS--"Methods for Collection and Processing of Surface-Water and Bed-Material Samples for Physical and Chemical Analyses" by Janice R. Ward and C. Albert Harr, Editors, Open-File Report 90-140 This report describes methods used by the U.S. Geological Survey for the collection and processing of surface-water and bed-material samples for the determination of their chemical and physical characteristics. The report is being distributed herewith as an Open-File Report pending publication as a Techniques of Water-Resources Investigations Report. The subject publication should be read by personnel responsible for collecting and processing surface-water and bed-material samples. Additional copies of Open-File Report 90-140 are available from the Books and Open-File Reports Section, Denver Federal Center, Building 810, Box 25425, Denver, Colorado 80225. David A. Rickert Chief, Office of Water Quality Attachment This memorandum does not supersede any previous Office of Water Quality memorandum. Key words: Analysis, methods, sampling Distribution: A, B, S (one copy to each) FO, PO (standard distribution)