Comparative evaluation of two extraction procedures: The TCLP and the ep. Final report
The 1984 amendments to the Resource Conservation and Recovery Act (RCRA) require that the U.S. Environmental Protection Agency (EPA) restrict the land disposal of hazardous wastes. The EPA has identified four characteristics that could be used to classify a waste as hazardous: corrosivity, ignitability, reactivity, and toxicity. A waste exhibiting any one of these properties is classified as hazardous. The Extraction Procedure Toxicity Characteristic (EP) test is used to determine if a waste poses an unacceptable risk to ground water if improperly managed and therefore should be managed as a hazardous waste. Regulatory thresholds, based on the EP test, have been established for eight metals, four pesticides, and two herbicides. The Toxicity Characteristic Leaching Procedure (TCLP EPA Method 1311) was developed to address a Congressional mandate to identify additional characteristics of wastes, primarily organic constituents that may pose a threat to the environment. The TCLP has been promulgated for use in determining specific treatment standards associated with the land disposal restrictions of RCRA. The TCLP has also been proposed as a replacement procedure for the EP test. Using the TCLP procedure, the EPA has also proposed to expand with hazardous waste regulatory levels the list of contaminants from the 14 listed in the EP protocol to a total of 52. The additional contaminants include 20 volatile organics, 16 semivolatile organics, and 2 pesticides. The purpose of this study was to compare the results of the TCLP with those of the EP.
- Research Organization:
- Army Engineer Waterways Experiment Station, Vicksburg, MS (United States). Environmental Lab.
- OSTI ID:
- 6944435
- Report Number(s):
- AD-A-259346/5/XAB; WES/TR/EL--92-33
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
290300 -- Energy Planning & Policy-- Environment
Health
& Safety
54 ENVIRONMENTAL SCIENCES
540320* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
AMENDMENTS
DEVELOPED COUNTRIES
DISSOLUTION
DOCUMENT TYPES
ELEMENTS
ENVIRONMENTAL POLICY
EVALUATION
EXTRACTION
GOVERNMENT POLICIES
GROUND WATER
HAZARDOUS MATERIALS
HERBICIDES
HYDROGEN COMPOUNDS
LAWS
LEACHING
MANAGEMENT
MATERIALS
METALS
NATIONAL ORGANIZATIONS
NORTH AMERICA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PESTICIDES
PHASE TRANSFORMATIONS
POLLUTION
REACTIVITY
REGULATORY GUIDES
REMEDIAL ACTION
RESOURCE CONSERVATION
RESOURCE RECOVERY ACTS
RISK ASSESSMENT
SEPARATION PROCESSES
SOLIDIFICATION
STABILIZATION
STANDARDS
TOXICITY
US EPA
US ORGANIZATIONS
USA
WASTE DISPOSAL
WASTE MANAGEMENT
WATER
WATER POLLUTION