The hazardous waste characterization process

  Consider the description of the hazardous waste characterization process as described in the unit lesson. What would you consider to be the single most critical aspect of selecting an independent, commercial testing laboratory to run the analysis on your filter cake sample prior to disposal of the cake in a landfill: (a) turn-around-time (number of days it takes to receive the final report from the lab), (b) cost of analysis, or (c) quality assurance systems within the laboratory? Why?