||Technical support document for water quality-based toxics control.
Brandes, R. ;
Newton, B. ;
Owens, M. ;
||Environmental Protection Agency, Washington, DC. Office of Water Enforcement and Permits.
|| Office of Water Enforcement and Permits, Office of Water Regulations and Standards, U.S. Environmental Protection Agency,
Water quality--United States. ;
Water--Standards--United States. ;
Hazardous materials ;
Water pollution control ;
Public health ;
Waste disposal ;
Mathematical models ;
Environmental impacts ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||114 pages : illustrations ; 28 cm
The reports provides guidance for each step in the water quality-based toxics control process from screening to compliance monitoring; Section 1 discusses the advantages and disadvantages of two approaches to toxics control: toxicity testing and chemical specific assessment; Section 2, Water Quality Criteria and Standards, contains a brief discussion of water quality standards and the derivation of ambient criteria to attain and maintain standards; Section 3, Effluent Characterization, describes procedures that provide the data needed to make decisions regarding toxic impact. A two-tiered assessment approach is recommended; Section 4, Human Health Hazard Assessment, describes procedures for assessing potential human health hazards associated with effluents; Section 5, Exposure assessment, describes procedures for estimating exposure to toxicants and calculating effluent requirements based on ambient criteria and exposure; Section 6, Permit Requirements, describes methods to develop water quality-based NPDES permits.
"September, 1985." Includes bibliographical references. "EPA-440/4-85-032." Microfiche.