AWWA WQTC55105

The Contaminant Candidate List (CCL), which was promulgated in March 1998, includes 50 chemical and 10 microbiological contaminants/contaminant groups. At the time of promulgation, analytical methods were available for 6 inorganic and 28 organic contaminants. Since then, 4 analytical methods have been published encompassing 12 additional analytes leaving only 4 chemical contaminant groups that still require method development. Method development work for microbiological contaminants will result in a method for Aermzmm later this year. Much research still remains in this area. This paper summarizes some of the technical challenges encountered during the method development projects, and updates the current status of the ongoing efforts to develop analytical methods for CCL contaminants. Includes 22 references, tables, figures.