Recent Posts

News Archive

Subscribe to News

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 […]

Read More About - H2A Invited to Speak at the Texas Association of Environmental Professionals April Luncheon Meeting »

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 […]

Read More About - “Preying” on LNAPL Using the Next Generation H2AWKTM »

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, […]

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

Jun
7

H2A Welcomes Charles D. Stone to Our Team

written by Andrea

H2A Environmental, Ltd. is very pleased to announce that Charles D. Stone, P.G., P.E. has joined our team to further enhance the strategic scientific solutions we provide our clients.  Charles will be opening an Austin, Texas office for H2A, and he will provide principal level technical expertise to a wide variety of technical and regulatory […]

Read More About - H2A Welcomes Charles D. Stone to Our Team »

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 […]

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

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 […]

Read More About - H2A’s Dr. Ranga Muthu to Conclude Training on API’s LNAPL Transmissivity Spreadsheet »

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 […]

Read More About - ASTM Standard References Multiple Methods for Estimating LNAPL Transmissivity »

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 […]

Read More About - H2A’s Dr. Ranga Muthu to Provide Training on API’s LNAPL Transmissivity Spreadsheet »

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 […]

Read More About - H2A is Using LNAPL Transmissivity to Make MDPE More Efficient and Cost Effective »

Mar
17

LNAPL Transmissivity Measurement Methods: A Preview of Developing Guidance (Webinar by Mike Hawthorne)

written by Andrea

The Aquifer Protection Interest Group is proud to present its first brown bag webinar of 2011 March 23, 2011, 1-1:30pm EST Light Non-Aqueous Phase Liquid (LNAPL) transmissivity (Tn) can provide substantial improvements to LNAPL hydraulic mobility and recoverability analyses over traditional metrics such as LNAPL thickness in wells. Although methods to measure Tn have been […]

Read More About - LNAPL Transmissivity Measurement Methods: A Preview of Developing Guidance (Webinar by Mike Hawthorne) »

Contact Us

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

817.380.3888 Phone
682.593.0660 Fax

H2A Environmental, Ltd. on LinkedIn