Vadose Zone News

  • Dr. Daniel B. Stephens recognized for contributions to NGWA

    Daniel B. Stephens, Ph.D., PG, PHg, founder and principal hydrologist, Daniel B. Stephens & Associates Inc., has received the 2016 Keith E. Anderson Award for outstanding contributions to the National Ground Water Association. “Throughout the last 42 years, Dan has served with energy and dedication, bringing forth his extensive hydrologic and geological experience, as well as ...

  • Vapor Intrusion

    A proposed new ASTM International standard will link easy to use, cost-effective and nonintrusive passive sampling with concentration data to measure vapor intrusion. WK40037, Guide for Determining Concentration Values from Groundwater, Air and Soil Gas Using Adsorbent-Based, Passive Samplers, is being developed by Subcommittee D18.21 on Groundwater and ...


    By ASTM International

  • There is still time to register...Remediation in the Vadose Zone

    About This Webinar... TITLE: Remediation in the Vadose Zone SPEAKER: Brian Riha, Fellow Engineer, Savannah River National Laboratory DATE: December 6, 2012 TIME: 12:00PM – 1:00PM EST Contaminants entrapped in the vadose zone pose long-term threats to groundwater as contaminants leach ...


    By EOS Remediation, LLC

  • Tersus Environmental Secures Patent Rights for Vadose Zone Remediation by Barometric Pumping

    Tersus Environmental, LLC, a developer and marketer of advanced, innovative technologies for the remediation of soil and groundwater, and Savannah River Nuclear Solutions, LLC (SRNS) announced that they have signed an Exclusive Patent License Agreement. This royalty-based agreement grants Tersus Environmental an exclusive worldwide license to manufacture, use, and sell the technology known as ...


    By Tersus Environmental, LLC

  • EOS Remediation secures rights for vadose zone remediation by physical and biological means

    EOS Remediation, LLC, a developer and manufacturer of advanced technologies for groundwater restoration, and Savannah River Nuclear Solutions, LLC announced that they have signed an Exclusive Patent License Agreement.  This royalty-based agreement grants EOS Remediation an exclusive world-wide license to manufacture, use, and sell the technology known as VOS™, a “Thixotropic Gel for Vadose Zone ...


    By EOS Remediation, LLC

  • Bioremediation in vadose zone

    EOS Remediation, LLC, a developer and manufacturer of advanced technologies for groundwater restoration, and Savannah River Nuclear Solutions, LLC announced that they have signed an Exclusive Patent License Agreement. This royalty-based agreement grants EOS Remediation an exclusive world-wide license to manufacture, use, and sell the technology known as VOS™, a “Thixotropic Gel for Vadose Zone ...


    By EOS Remediation, LLC

  • Proposed new ASTM vadose zone standard to aid in vapor intrusion evaluations

    A proposed new practice being developed by ASTM Subcommittee D18.21 on Ground Water and Vadose Zone Investigations will cover techniques for actively collecting soil gas samples from the vadose zone beneath buildings. WK18835, Practice for Active Soil Gas Sampling in the Vadose Zone for Vapor Intrusion Evaluations, is under the jurisdiction of ASTM International Committee D18 on Soil and Rock. ...


    By ASTM International

  • Climate change could affect groundwater recharge, scientists say

    (AXcess News) Washington - Elevated levels of carbon dioxide (CO2) in the Earth's atmosphere could seriously impact air, weather and vegetation. Now a scientist with the Agricultural Research Service (ARS) is taking a closer look at what could happen underground. If atmospheric CO2 levels double within this century, as many climate models predict, some areas could experience large increases in ...


    By Axcess News

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