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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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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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Aug
1

H2A’s Mike Hawthorne to speak at the 2013 Texas Environmental Superconference

written by Andrea

Mike Hawthorne, of H2A Environmental, Ltd., will be speaking on “The Use of Modeling in Site Remediation” at the 25th edition of the annual Texas Environmental Superconference, Texas’s award-winning environmental conference, which will be held on Thursday and Friday — August 1-2, 2013– in Austin at the Four Seasons Hotel.  Co-presented by the State Bar […]

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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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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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Jul
8

ANSR Listed as Resource in USEPA’s TechDirect Newsletter

written by Shannon

The June 2011 issue of Applied NAPL Science Review (ANSR) was cited in the U.S. Environmental Protection Agency’s July 2011 issue of the TechDirect Newsletter, a publication that identifies new guidance resources related to the assessment and remediation of contaminated media.  ANSR was listed as a web resource that “provides technical insight into the science […]

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Jun
16

H2A Performs 12-Day MDPE Event in Angleton, Texas

written by Shannon

H2A is currently performing a 12-day, mobile dual-phase extraction (MDPE) event at a former petroleum storage tank site located within TxDOT right-of-way in Angleton, Texas (the Site).  This is the latest of seven MDPE events performed by H2A at the Site over the past several years.  During a 12-day event performed in March of this […]

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Jun
3

H2A Completes LNAPL Conceptual Site Model (LCSM) Updates for a Large-Scale Refinery

written by Shannon

H2A’s J. Michael Hawthorne, PG, Shannon Walker, PE, and Si Xu, EIT, recently completed an extensive redesign of the LNAPL Conceptual Site Model (LCSM) for a large-scale oil refinery located in southeast Texas. The analysis included a detailed review of all gauging and well construction data, fluid physical properties, aquifer properties, multiple LNAPL recovery and […]

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H2A Environmental, Ltd.
1862 Keller Parkway
Keller, TX 76248

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