Trace concentrations of numerous organic compounds (emerging contaminants (EC), and endocrine disruptor compounds (EDCs)) such as pharmaceuticals and personal care products (PPCP), including prescription drugs and biologics, "nutraceuticals," fragrances, sun-screen agents, and numerous others are reported in various wastewater effluents, and aquatic systems. In addition to these, increasing levels of naturally occurring organic materials (NOM) directly linked to societal nutrient management practices are of serious consequence for managing water resources.