The federal biosolids rule is contained in 40 CFR Part 503 and is a major focus of the Resource Conservation and Recovery Act. It contains the regulations and quality standards for biosolids land application. It clearly divides biosolids into a number of categories, septage being one of them. The number and type of requirements associated with the land application of septage are affected not only by quality (pollutant levels, level of pathogen reduction and attractiveness to vectors), but also by the method of distribution.Contaminants of Emerging Concern (CECs), including hormones, pharmaceuticals and personal care products, are a diverse group of common
