Stream Sampling for Waste Load Allocation Applications

Abstract

This report discusses sampling requirements in support of waste load allocation studies in rivers and streams. Two approaches to waste load allocation are addressed: the chemical-specific approach and the whole effluent approach. Numerical or analytical toxicant fate models are used to implement the chemical-specific approach. Modeling requirements and sampling guidelines are delineated for this method. For the whole effluent approach, the method is first summarized and then instream dye study requirements are presented. The report concludes with example applications of the chemical-specific approach for conventional and toxic pollutants.