Blog & Recent Projects

Join us this week at the 37th AEHS Annual International Conference

Posted by John Sohl on Oct 18, 2021 6:30:00 AM

Join us for the premier 37th Annual International Conference on Soils, Sediments, Water, and Energy kicking off this Monday morning at 10:00 a.m. Eastern. 

As a virtual conference, you have the opportunity to check in at times convenient for you without the challenges of travel and leaving your desk. There is a full lineup of excellent speakers on current topics of interest including emerging contaminants, sustainable solutions, environmental justice, and offshore wind.  Continuing education credits are available for maintaining your certifications.

For a special treat, join us on Thursday at 1:00 p.m. Eastern when COLUMBIA Technologies sponsors industry leaders providing their perspective on the State-of-Science of high-resolution technologies and protocols including: 

  • Murray Einarson (Haley & Aldrich) - The Surprisingly Long History of High-Resolution Site Characterization (HRSC) and a look to the Future
  • Beth Parker (G360 Institute for Groundwater Research) - Novel High-Resolution Site Characterization Methods to Inform Remediation at Contaminated Fractured Rock Sites
  • Joe Guarnaccia (BASF) - A Mass-Flux Approach to Designing a Permeable Reactive Barrier Well Array

Later on Thursday from 5:00 to 7:00 p.m., we will also present Workshop 08, a 2-hr review of Building the Business Case for Combining HRSC and Sustainable Remediation Technologies to Reduce the Life-Cycle Cost for UST Site Closure.  

Register here for these and other excellent presentations

I hope to see you there!

 

Read More →

Tags: Direct Sensing, High Resolution Site Characterization (HRSC), LNAPL, MIP, Site Characterization, UST, Climate Change, Sustainability, AEHS

The 7 Biggest Myths of Direct Sensing (Part II)

Posted by admin on Oct 3, 2012 1:07:12 PM

We hope you enjoyed our last blog post, The 7 Myths of Direct Sensing (Part I) outlining the three basic assumptions or principles we have in mind when deploying high resolution direct sensing tools, defining high resolution and direct sensing tools, and disclosing the first three myths related to site characterization projects.

Below are four additional myths related to detection levels, remediation programs, cost of direct sensing, and the need for real time data with the corresponding truths.

Myth 4: The detection levels of direct sensing tools like the Membrane Interface Probe (MIP) are not low enough

If you’re going off the basis that the contaminant levels at your site are too low for direct sensing tools, you’re probably should ask yourself do I really only have 10 ppb and if so, why do I still have 10 ppb? Direct sensing tools for contaminant profiling are first and foremost source area characterization tools.

Read More →

Tags: Direct Sensing, High Resolution Site Characterization (HRSC), Hydraulic Profiling Tool (HPT), Membrane Interface Probe-Hydraulic Profiling Tool, Membrane Interface Probe (MIP), News, Site Characterization

The 7 Biggest Myths of Direct Sensing (Part I)

Posted by admin on Sep 19, 2012 11:17:20 AM

After 20 years in enviromental sampling and analysis we have come to believe in direct sensing as a means of providing the most rapid and comprehensive information about the distribution and composition of soil and groundwater contamination. Ever evolving, today’s direct sensing tools for remediation focused site characterization projects continue to add a greater range of high resolution information on subsurface conditions including hydrology, lithology and contaminant distribution to support environmental liability decision.

Although direct sensing approaches are used throughout the environmental industry supporting cleanup and closure efforts, there are still several myths associated in applying these methods to site investigation and remediation projects.

There are three basic assumptions or principles we have in mind when deploying high resolution direct sensing tools with as near real time decision-making information:

Read More →

Tags: Direct Sensing, News

High-Resolution Site Characterization Support  in Mexico City

Posted by John Sohl on Sep 12, 2011 11:45:02 PM

     COLUMBIA Technologies is currently supporting our first high-resolution direct sensing project in Mexico City.  COLUMBIA’s direct sensing team landed in Mexico City in August to make a difference in the environmental industry on a global level and prove that real-time information can drive a project to satisfy regulatory requirements for investigation of contaminated sites.

Following the proven concept of stakeholder and regulatory involvement, systematic work planning, and dynamic work execution, these site investigations focused on providing a better understanding of how the results would impact the overall remediation scope and property disposition.

Read More →

Tags: COLUMBIA Technologies, Direct Sensing, High Resolution Site Characterization (HRSC), John Sohl, Membrane Interface Probe (MIP), News, Mexico

Revised Characterization Plan Accelerates Petroleum Brownfield Cleanup and Redevelopment

Posted by John Sohl on Mar 31, 2011 11:32:35 AM

 Article originally featured in the Environmental Protection Agency (EPA) CLU-IN Technology News and Trends March 2011 Issue

Most recently, the March 2011 issue of Technology and Trends highlighted a project where COLUMBIA Technologies worked closely with the property owner, the Virginia Department of Environmental Quality (VA DEQ), and the City to address the site's environmental and economic issues.

Efforts to better delineate contamination and accelerate remediation of the former Fannon Petroleum Services site in Alexandria, VA, were initiated in the early 2000s as part of a plan to redevelop the site for residential use.

For this project, the VA DEQ initiated the Triad approach including the development of a conceptual site model and consensus on specific investigative methods and tools, with a focus on using:

  1. Membrane Interface Probe (MIP) to characterize distribution of volatile organic compounds (VOCs) in discrete hydrologic units and soil stratigraphy at offsite locations;
  2. Direct-sensing geophysical tools rather than groundwater and soil sampling for initial screening; and
  3. A dynamic work strategy to allow real-time decision making that could identify specific locations for direct-sensing locations as work proceeded.

Click the following link to read the full article, Revised Characterization Plan Accelerates Petroleum Brownfield Cleanup and Redevelopment.

Read More →

Tags: Direct Sensing, High Resolution Site Characterization (HRSC), LNAPL, Membrane Interface Probe, MIP, Triad Approach