Quantification of LNAPL Transmissivity in Fractured Porous Media
Monday, October 2, 2017: 10:00 a.m.
J. Michael Hawthorne, PG
,
GEI Consultants, Inc., Keller, TX
Lisa Reyenga, PE
,
GEI Consultants, Inc., Keller, TX
Allison Elder
,
ExxonMobil Environmental Services, Houston, TX
Harley Hopkins
,
ExxonMobil Environmental Services, Falls Church, VA
Matthew Walker
,
ExxonMobil Environmental Services, Melbourne, Australia
Mark Malander
,
ExxonMobil Environmental Services, Houston, TX
Light Non-Aqueous Phase Liquid (LNAPL) transmissivity is a metric to quantify the hydraulic recoverability of LNAPL. Existing methods to measure LNAPL transmissivity are applicable to granular porous media and often fail to reliably quantify LNAPL transmissivity in fractured porous media. LNAPL transmissivity calculations in fractured porous media require measurement of the geometry and discharge rate for individual fractures containing mobile LNAPL. A modification of methods designed for granular porous media has been developed to provide improved measurement of LNAPL transmissivity in fractured porous media at the individual fracture and aggregate well scales. A second benefit of the process is the high resolution definition of individual fractures containing mobile LNAPL.
J. Michael Hawthorne, PG, GEI Consultants, Inc., Keller, TX
Mr. Hawthorne is a Principal and Vice President with GEI Consultants, Inc., the founder of Applied NAPL Science Review, and an active contributor to ITRC, ASTM and other NAPL related guidance document teams. He has spent 29 years characterizing and remediating NAPL releases across the United States in various hydrogeologic environments at refining, pipeline, gas plant, terminal, UST, and other industrial and transportation related sites. He is the lead author on API's national LNAPL transmissivity study and the author of multiple NAPL transmissivity articles and conference presentations.
Lisa Reyenga, PE, GEI Consultants, Inc., Keller, TX
Ms. Reyenga is a Senior Engineer with experience in site remediation and characterization of multi-phase contaminants including NAPL, vapor, and dissolved phase contaminants. She Specializes in life cycle management of NAPL remediation sites from initial investigation, through remediation system design and evaluation, to site closure based on NAPL mobility and recoverability.
Allison Elder, ExxonMobil Environmental Services, Houston, TX
Allison Elder is a Project Developer with ExxonMobil Environmental Services (EMES) and is located in Houston, TX. Allison completes upfront project planning and provides technical support on EMES projects.
Harley Hopkins, ExxonMobil Environmental Services, Falls Church, VA
Harley Hopkins is a Technical Advisor with Technical Services, ExxonMobil Environmental Services (EMES) and is located in Falls Church, Virginia. Harley serves as EMES’ technical network coordinator and facilitator of the EMES Investigation Network. Prior to joining EMES, he was a Manager and Sr. Environmental Scientist at the American Petroleum Institute (API) and an exploration geologist for AMOCO. His areas of expertise include: vapor intrusion, LNAPL, and oil and natural gas waste. He is a Certified Professional Geologist in the State of Virginia, USA.
Matthew Walker, ExxonMobil Environmental Services, Melbourne, Australia
Matt Walker is a Project Manager working in Melbourne, Australia. Matt has 9 years work experience in the Environmental industry, with the past 4 years working on projects involving Environmental Assessment and Remediation of LNAPL within fractured rock (basalt).
Mark Malander, ExxonMobil Environmental Services, Houston, TX
Mark Malander is a Technical Advisor with Technical Services, ExxonMobil Environmental Services (EMES) and is located in Houston, TX. Mark provide EMES’ technical support and serves as facilitator of the EMES Risk Network.
