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Public Meeting on the Development of New Waste Leaching Procedures

Public Meeting on the Development of New Waste Leaching Procedures

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EPA held a public meeting on the Development of New Waste Leaching Procedures on July 22-23, 1999 in conjunction with the 15th Annual Waste Testing and Quality Assurance (WTQA) symposium. It provided a forum for Federal and State regulators, research scientists, and the regulated community to discuss issues related to estimating the leaching potential of wastes and contaminated materials, to explain the history of the Agency’s leachate estimation tests, to review the state-of-the art with respect to leachate estimation, and to solicit input on how the issues can be addressed.

Federal Register Notice - May 15, 1999
Public Comments (PDF) (2 pp, 11K)
List of Attendees (PDF) (28 pp, 86K)
All Sessions (PDF) (44 pp, 138K)


Session I - Introduction and Overview

Introduction (PDF) (1 pg, 6K)
Importance of this Meeting - Greg Helms (PDF) (2 pp, 7K)
Background of the Toxicity Characteristic Leaching Procedure (TCLP) - Todd Kimmell (PDF) (3 pp, 18K)
EPA Science Advisory Board (SAB) Review of Waste Leachability - Ishwar Murarka (PDF) (2 pp, 16K)
Stakeholder Perspectives on Leaching Problem (PDF) (2 pp, 11K)

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Session II - Modeling and Risk Assessment

Importance of Leachate Tests in the Assessment Process - Ishwar Murarka (PDF) (3 pp, 20K)
Modeling Overview - Zubair Saleem (PDF) (3 pp, 10K)
Organic Modeling Issues and Problems - Chen Chiang (PDF) (2 pp, 9K)
Inorganic Modeling Issues and Problems - David Brown (PDF) (3 pp, 13K)

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Session III - Leaching Science

Opening Thoughts - Greg Helms (PDF) (1 pg, 5K)
Stakeholder Perspective: NJ Department of Environmental Protection - Mike Winka (PDF) (1 pg, 10K)
Inorganic Leaching Science - Bill Batchelor (PDF) (4 pp, 18K)
International Perspective of Leaching Science - Hans var der Sloot (PDF) (3 pp, 10K)
Organic Leaching Science - William Rixey (PDF) (3 pp, 19K)
Overview of California EPA Approach - Bart Simmons (PDF) (2 pp, 8K)
Overview of Research Supported by EPA - David Kosson (PDF) (3 pp, 11K)
Overview of Current Approaches - Sara Hartwell (PDF) (3 pp, 14K)

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Session IV - Leaching Policy and Applications

Panel Discussions (PDF) (1 pg, 4K)
Test Design and Implications: Waste Characterization (PDF) (6 pp, 16K)
Test Design and Implications: Site Characterization (PDF) (6 pp, 17K)

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Session V - Leaching Policy and Applications and Wrap-Up

Test Design and Implications: Treatment Effectiveness (PDF) (2 pp, 8K)
Summary of Meeting Results (David Friedman) and Next Steps (Greg Helms) (PDF) (2 pp, 7K)

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