This report presents the results of a program of evaluation of analytical methods for 'Total Content' of residual wastes. Candidate methods were first studied and modified, and then evaluated by analyzing a variety of industrial residuals for a broad range of organic compounds and metals. The results, based on statistical analysis of over 10,000 data points, are quoted primarily in terms of observed accuracy and precision. The methods depend on extraction, gel permeation chromatography cleanup, preconcentration, and GC/MS analysis for identification and quantitation of semivolatile organics; purge-and-trap and GC/MS for purgeable organics; and acid digestion combined with AAS or ICP determinations for metals. An edited text of the evaluated methods is presented in the format specified by EMSL-Cincinnati for standard methods as an appendix to this report. Southern Research Institute and Battelle-Columbus Laboratories exchanged methodologies developed for Total Content and Potential Mobility and applied these procedures to the analyses of samples in an interlaboratory study. Results of SoRI's contribution to the interlaboratory study are presented in the appendices to this report.