2004 Annual Report 4.What were the most significant accomplishments this past year? This report serves to document research conducted under a Specific Cooperatice Agreement between ARS and Ohio State University. Additional details of research can be found in the report for the parent CRIS 6408-12130-012-00D, Processes, Control, and Prediction of Erosion and Runoff on Upland Areas in Agricultural Watersheds. CRIS project 6408-12130-012-09S with Ohio State University (Dr. Jerry Bigham) seeks to determine the effect of geochemical factors on sediment quality. Data analysis were completed in FY 04. One presentation has been made at a national meeting.