Book Description
Provides guidance on the general approach & procedures for conducting Toxicity Reduction Evaluation (TRE) at municipal wastewater treatment plants. TREs are important tools to use to identify & reduce or eliminate toxicity in a wastewater discharge. TREs may be required by the discharger's permit or through state or Fed. enforce. actions. Dischargers can use the guidance to evaluate the nature & sources of effluent toxicity (ET) before a TRE becomes a regulatory require. Whether the TRE is voluntary or mandated, this guidance, which describes the approaches that have been successfully used in municipal TREs, can help to prepare & execute a plan to address ET. Illus. Also includes a 9-page EPA report, Assessing Contaminant Sensitivity of Endangered & Threatened Species: Effluent Toxicity TestsÓ (Sept. 1999).