ABSTRACT
It is important to understand that the various regulations require specific analytical methods. Within these regulations, different methods maybe required based on the media type (soil, water, sewage, etc.) Specific methods[5-8] have been established by the EPA, professional organizations, and even the state agencies for these various matrices (i.e., soil, water, and sewage). EPAs SW846 methods[5] for the evaluation of solid waste are used for the evaluation of solid waste which includes water and are used in this discussion because they are commonly used in water analysis and the methods are easily downloaded from the web at (https://www.epa.gov/epaoswer/hazwaste/test/main. htm). EPA also published EPA-600[6] series for water and EPA-500[7] series for drinking water, but the method’s advantages and disadvantages remain the same for each series of methods. It is important to note that subtle differences do exist for method procedures and quality control and the method series prescribed in the regulations should be utilized.
