Participants received 1.5 professional development hours upon course completion.
Mr. Ryan Ekre – Arizona State University – Ira A. Fulton Schools of Engineering Dr. Robert Hinchee – Integrated Science & Technology, Inc.Dr. Paul Johnson – Arizona State University – Ira A. Fulton Schools of Engineering Dr. Paul Lundegard – Lundegard USA
Source zone natural attenuation (SZNA) could be used with greater confidence if accepted methodologies for demonstrating and measuring it were available. SZNA is an implicit component of engineered remediation schemes as it is relied upon to provide further reduction of any post-treatment residual contamination. The SZNA assessment approach developed under ESTCP project ER-200705 includes three basic levels of data collection and reduction to provide site-specific evidence for natural attenuation and develop estimates of its rate and the time required for eventual cleanup. This short course provided an overview of the SZNA assessment approach for assessing DNAPL and mixed DNAPL/LNAPL-impacted sites. The course also highlighted a technical guidance document, which focuses on the assessment of dissolved plume natural attenuation. The Short Course material in its entirety can be found in the Full Presentation.
Overview of Source Zone Natural Attenuation and Mass-Balance Measurement Approach
Discussion of Key Measurements
Conceptual Differences between Petroleum Hydrocarbon XANCA and CVOC DNAPL SZNA
Data Reduction Methods
Experiences to Date with Demonstration Sites
Summary of Depletion Rates and Key Processes at Demonstration Sites
Questions and Open Discussion