The Fall Line Toxics Program for 1994 is a continuation of a long term effort to make accurate load estimates of contaminants entering the Chesapeake Bay from the non-tidal portion of the watershed. This program has identified nine major tributaries on which to make fall line load estimates. The 1994 Fall Line Toxics Program consisted of two components. First, the Susquehanna River was sampled from February 1994 through January 1995 during baseflow and stormflow conditions. Secondly, eight additional tributaries were sampled twice synoptically, once in Spring, 1994 and once in Fall, 1994. This report presents the results of both components. Samples were analyzed for dissolved and particulate fractions of trace elements and organic constituents. Concentration data and extensive quality assurance results are presented.