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VALIDATION OF USEPA METHODS 1680 AND 1682 FOR FECAL COLIFORMS AND SALMONELLA IN BIOSOLIDS
Citation:
Chambers, Y., M. L. Pope, K. Miller, M. Chicoine, R. Ghei, K. Connell, R. K. Oshiro, AND M Meckes*. VALIDATION OF USEPA METHODS 1680 AND 1682 FOR FECAL COLIFORMS AND SALMONELLA IN BIOSOLIDS. Presented at 26th Annual Conference on Analysis of Pollutants in the Environment, Norfolk, VA, 4/29-30/2003.
Description:
In the United States, the use and disposal of biosolids are regulated under 40 CFR part 503. Subpart D of this regulation protects public health and the environment through requirements designed to reduce the potential for contact with pathogens in biosolids applied to land or placed in a surface disposal site based on two categories: Class A and Class B. The goal of the Class A requirements is to reduce the pathogens to below detectable levels. The goal of the Class B requirements is to ensure that pathogens have been reduced to levels that are unlikely to have a threat to public health and the environment under the specific use conditions. The 503 regulations require monitoring Class A biosolids for fecal coliforms, or Salmonella, and under specific circumstances enteric viruses, and viable helminth ova. Although methods required to evaluate the density of each organism are stipulated, none of the methods had undergone validation prior to implementation of the regulation.