Permit Writer's Guide to Water Quality-Based Permitting for Toxic Pollutants

摘要

The Guide provides State and Federal National Pollutant Discharge Elimination System (NPDES) permit writers and water quality management staff a reference to water quality-based permit issuance procedures. It supports the implementation of existing State water quality standards and current permitting techniques. As such, it presents fundamental concepts and procedures in detail and simply refers to those more advanced toxics control procedures, such as dynamic modeling of complex discharge situations, which may not yet be incorporated into many State programs. The Guide is meant to explain aspects of water quality-based toxics control in terms of what a permit writer currently needs to know to issue a water quality-based toxics control NPDES permit.