ABSTRACT
This chapter presents a study which involves detailed leach testing of wastes from one ferrous foundry. It includes a components of variance analysis to estimate the variances associated with sample handling and laboratory analytical procedures, as well as several other statistical methods to estimate the mean concentrations and variations about the means of 10 chemical parameters. The chapter compares the obtained landfill leachate results to the laboratory batch leaching test results from wastes from the foundry by means of probability plots. The objectives of Phase 1 were to estimate the variability of the laboratory analytical procedures and the variability of the laboratory riffling and leaching procedures. The objective of Phase II was to estimate the temporal variability of each of the three waste sources by sampling on randomly chosen days over a two-month period. Samples were collected as described in the "sample collection" section.
