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May
19

H2A Heads to Battelle’s Ninth International Conference on Remediation of Chlorinated and Recalcitrant

written by Andrea

H2A’s Mike Hawthorne will present an update on his research (conducted jointly with Randy St. Germain of Dakota Technologies, Inc.) into detailed forensic analysis of laser induced fluorescence (LIF) data.  Modern risk-based light non-aqueous phase liquid (LNAPL) remedies at complex sites require high-resolution characterization data to develop comprehensive LNAPL conceptual site models (LCSMs) sufficient to […]

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Apr
15

H2A Invited to Speak at the Texas Association of Environmental Professionals April Luncheon Meeting

written by Andrea

H2A’s Mike Hawthorne will speak this Thursday, April 17, at the Texas Association of Environmental Professionals (TAEP) April Luncheon Meeting, being held at Brady’s Landing Restaurant in Houston, Texas. Mike’s presentation, titled “Risk-Based LNAPL Remedies: When Does Recovery Make Sense?” will discuss the role LNAPL transmissivity plays in decision-making regarding implementation of active LNAPL recovery […]

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Mar
18

H2A to Co-Present an LNAPL Workshop at the March 2014 AEHS Conference

written by Andrea

H2A’s Mike Hawthorne, along with Sanjay Garg of Shell Global Solutions, Mark Lyverse of Chevron Technology and Energy Company, and Chet Clark, also of Shell Global Solutions, are presenting a workshop titled “Light, Nonaqueous-Phase Liquid (LNAPL): Risk-Based Assessment of Recoverability” at the Association for Environmental Health and Sciences (AEHS) Foundation’s 24th Annual International Conference on […]

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Mar
7

“Preying” on LNAPL Using the Next Generation H2AWKTM

written by Andrea

One of our top priorities at H2A is implementation and management of strategic, effective, efficient LNAPL remediation efforts on behalf of our clients.  One way we do this is through heavy reliance on LNAPL transmissivity as a leading, progress, and shutdown metric for hydraulic recovery of LNAPL.  And, we’re not just concerned with IF recovery […]

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Jan
29

H2A’s Mike Hawthorne to be a Co-Instructor at the ASTM Workshop on LNAPL Transmissivity

written by Andrea

Mike Hawthorne, one of the co-authors of the ASTM Guide on Estimating LNAPL Transmissivity, and a leading expert on LNAPL science, has been invited to provide a training session on the theory and practical application of LNAPL transmissivity at the upcoming ASTM Workshop on Estimating LNAPL Transmissivity, sponsored by ASTM Committee E50.04 on Environmental Assessment, […]

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Mar
14

H2A’s Mike Hawthorne Coauthors NAPL Article in Ground Water Monitoring & Remediation on Identification of Confined and Perched NAPL

written by Andrea

H2A’s J. Michael (Mike) Hawthorne, PG, coauthored an article recently published in Ground Water Monitoring & Remediation titled “Identification and Assessment of Confined and Perched LNAPL Conditions.”  Coauthors include Andrew Kirkman and Mark Adamski of BP Americas.  The article presents powerful tools that use routinely collected data to identify confined or perched LNAPL.  Routinely collected […]

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Mar
7

H2A’s Dr. Ranga Muthu to Conclude Training on API’s LNAPL Transmissivity Spreadsheet

written by Shannon

H2A’s Dr. Rangaramanujam “Ranga” Muthu, co-author of the American Petroleum Institute’s (API’s) new Microsoft ExcelTM spreadsheet tool for estimating LNAPL transmissivity using baildown test data, will present the second part of a two-part training session on the spreadsheet on March 14, 2013, from 1:00 to 1:30 PM EST. This session is only available to National […]

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Feb
19

ASTM Standard References Multiple Methods for Estimating LNAPL Transmissivity

written by Andrea

ASTM E-2856-11, Standard Guide for Estimation of LNAPL Transmissivity, identifies four primary methods to measure LNAPL transmissivity.  However, one of those four methods, recovery data analysis, has four sub-methods based upon the remediation technology used.  And one of those sub-methods, total fluids recovery data, can be further subdivided based on whether you plan to analyze […]

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Feb
12

H2A’s Dr. Ranga Muthu to Provide Training on API’s LNAPL Transmissivity Spreadsheet

written by Andrea

H2A’s Dr. Rangaramanujam “Ranga” Muthu, co-author of the American Petroleum Institute’s (API’s) new Microsoft ExcelTM spreadsheet tool for estimating LNAPL transmissivity using baildown test data, will present the first part of a two-part training session on the spreadsheet on February 27, 2013, from 1:00 to 1:30 PM EST.  This session is only available to National […]

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Aug
15

H2A is Using LNAPL Transmissivity to Make MDPE More Efficient and Cost Effective

written by Shannon

H2A recently completed an evaluation of LNAPL transmissivity (Tn) at a major international airport in Texas.  The results are being used to further enhance the existing mobile dual-phase extraction (MDPE) remediation strategy for the site by focusing efforts on wells exhibiting the highest LNAPL transmissivity.  By doing so, H2A has realized increases in product recovery […]

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Keller, TX 76248

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