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I had the pleasure of attending REMTEC 2019 in Denver last week.  As always it was great to catch up with colleagues and hear about new developments in our industry.  While much of the discussion centered around the looming challenges of PFAS contamination, there were also many valuable presentations related to building reliable conceptual site models.

Most inspiring to me personally are the continuing efforts to systematize the process of sustainably restoring heavily contaminated properties back to useful life.  James Henderson with DuPont Corporate Remediation Group provided the benchmark process in his presentation of Harnessing the Value of Contaminated Lands to Achieve Global Environmental, Social and Economic Transformation.  

A leap forward in horizontal high-resolution was presented by Erik Piatt, with En Rx, and their Vertebrae Horizontal Well  system.  This system enables the practitioner to design the placement of individually isolated  horizontal well screens for monitoring or injection beneath buildings and structures without entry into the facility. 

The value of high-resolution site characterization as a key step in remediation design or an effective diagnostic in performing remedial optimization was highlighted in multiple presentations.  New technologies such of the Hydraulic Profiling Tool (HPT) and the HPT-GW groundwater profiler provide critical data on formation pore pressure to support any planning for fluid recovery or injection.  The HPT can be combined with both the Membrane Interface Probe (MiHpt) or Optical Interface Probe (OIP-HPT) for delineation of storage and transport zones for VOCs and LNAPL.  Call us  (+1-888-344-2704) if you would like more information on these tools.

I look forward to meeting new friends and seeing old ones at the upcoming Battelle International Symposium on Bioremediation and Sustainable Environmental Technologies in Baltimore, 15-18 April 2019. 

Shoot me a note    if you're going to attend and let's connect.

Celebrating 20 Years of High-Resolution Site Characterization Services

COLUMBIA Technologies is excited to announce that we just passed our 20 year milestone in providing quality high-resolution site characterization services around the globe.

Working with our partners in Brazil and Africa we have delivered over 2000 individual site characterization projects, providing real data, in real time, reliably  to our consulting firm clients.

THANK YOU  to our clients, partners, and the many COLUMBIA Technologies team members who made achieving this milestone possible.  We look forward to 2019 and beyond to offer a growing range of services to our global customers.

 The 26th National Tanks Conference & Exposition (NTC) just wrapped up in Louisville, Kentucky.  The conference was professional rewarding as we learned how far the science of LNAPL management has come in recent years.  Several presentations highlighted the importance of thorough data gathering before leaping to expensive remedies.  Multiple  innovative approaches to gather "scale appropriate" data in all types of soil conditions including consolidated bedrock were presented in the technical sessions.  Our team had chance to hear from a lot of industry practitioners regarding their current challenges as well as attend the technical sessions.  Here are some highlights of what we heard...

WHAT WE HEARD AT NTC 2018

Cho-Yi Risher and Wil Anderson from EPA OUST reported the results of their review of the state of financial responsibility of state funds started in 2017.   Some of their observations:

• There has been a small change in the total number of cases being managed across the states surveyed
• A median of 41% of available funds at the state level are being spent on cases
• A median of five  months evolve from the reporting of a release to starting investigation
• A median of  cases take 75 months to close from the time they are reported
• Looking  closer at the trends 
  • Money appears to be available - but is not being spent,
  • The total number of sites being closed has slowed;  there is a steady number of remaining cases,
  • State lead sites tend to get limited funding
  • Cleanup times are ”relatively long" 

A common theme:  "If you have a water contamination problem, you have a soil contamination problem".    An LNAPL conceptual site model (LCSM) should address where is the LNAPL,  what soil does it reside in,  is the LNAPL mass stable, and is it transmissive before implementing more aggressive remedial action.

HRSC or better yet,  "scale appropriate" measurements of soil , water, and contaminants are needed for accurate conceptual site model before expending a lot resources on cleanup technologies or approaches.  Typically, long-screen monitoring wells with their associated filter packs do not provide sufficient resolution to separate different soil permeabilities and accurately delineate residual contaminant mass.

HRSC is not one tool or methodology but a scientific approach employing scale appropriate measurements of soil (both consolidated and unconsolidated), water, vapor, and contaminants.

The industry and states need flexibility and mechanisms to allow for innovation.  Regulations, funding mechanisms, and local procedures should incorporate flexibility to allow new and innovative approaches to be applied on the remaining difficult cases.

Natural Source Zone Depletion (NSZD) can generate mass reduction rates comparable to many engineered remediation methods.  Characterization and performance monitoring should include the assessment of NSZD mass degradation rates and be compared to traditional remediation methods.

The 26th National Tanks Conference & Exposition (NTC) will be held September 11-13, 2018, at the Galt House Hotel in Louisville, Kentucky.  Pre-conference workshops convene on Monday,  September 10.   

I'm pleased to be presenting a workshop on Focusing High-Resolution Site Characterization (HRSC) for Selecting Remedial Technologies along with Andrew Kirkman of BP, Tom Kady with the EPA ERT, and Queenie Mungin-Davis from EPA Washington.   Our goal is for the audience to develop ideas for reducing the cost of cleanup by implementing innovative scale appropriate measurements to improve their LNAPL Conceptual Site Models.  We will explore:

• An Introduction to the Principles of High-Resolution Site Characterization (HRSC)
• Choosing the Right Scale Appropriate Tools to Support Successful Outcomes
• We've Done HRSC, Now What About Remedy Selection?
• Data Use and Management
• Key Considerations for Applying HRSC
• Case Examples
  • Vacuum Truck Evaluation
  • Comparison of Multiple Lines of Evidence
  • Down-Gradient Dissolved Phase Contamination

For more details download a complete workshop agenda.

Climate Change and Sea Level Change.

Two controversial topics for some, but well-documented science.  I had an opportunity to read "The Water Will Come" by Jeff Goodell, one of Booklist's Top 10 Science Books of 2017, on an extended plane trip during this holiday season.  Goodell presents a well-researched overview of the impact of climate change and the associated changes in sea level on countries, populations, infrastructure, and politics.   While the geopolitical challenges of climate change are well beyond the scope of most of our local environmental remediation efforts, Goodell did prompt me to reflect on a few observations we've made in the field and the potential impacts to come.

Is your remediation site in a low lying or coastal area?   US EPA confirmed Hurricane Harvey impacted 13 of 41 of the US’s most-toxic waste sites in the Houston area in 2017.  Goodell points out that the "Runit Dome, a concrete bunker on Enewetak Atoll where the US military buried 111,000 cubic yards of radioactive debris left behind after then nuclear tests of the Cold War. It sits right at sea level.  "It is already cracked, and as the waters rise, it will be submerged, creating  a problem of nuclear waste in adjoining waters."

Is the infrastructure that supports your remediation systems or access to your facilities at risk in high-water conditions?     The reactor meltdowns at Fukushima, Japan resulted from the failure of the cooling water systems in turn caused by the loss of power sources in extremely high water conditions precipitated by the tsunami and storm surge.  Critical infrastructure and no doubt remediation systems failed in New York and New Jersey as a result of Super Storm Sandy.

The Navy base at Norfolk, VA, the largest in the U.S., anticipates a significant impact to operations (and environmental cleanup) by 2020. 

How have changes in groundwater levels affected your long-term remediation systems?  Even the performance of remedial systems sited a distance from low lying areas are often highly dependent on the accurate placement of system hardware in relationship to groundwater levels.  Most readily affected are systems that rely on groundwater control through pumping or multiple phase extraction.  Changing storm patterns result in often significant changes in groundwater level potentially with costly impact on the effectiveness of installed remediation systems. 

So, you’ve decided that a high-resolution 3D assessment of your site would help clear up the uncertainty in where any residual product is hiding and what its spatial relationship is to the soil permeability and the installed monitoring and recovery wells.  How do you get started?

Multiple organizations including U.S. EPA (www.epa.gov/ust), ASTM International (astm.org), the Interstate Training and Regulatory Council (ITRC.org), the American Petroleum Institute (API.org), the Australian Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRCCare.com), and the individual state jurisdictions all have published guidelines for undertaking a systematic assessment of petroleum contaminated sites. 

Turns out, you probably have a lot of important information readily available to get started.  Your key to success going forward will be both a systematic review of where your current LCSM stands to identify data gaps and uncertainties followed by a systematic data collection effort to close those data gaps with multiple lines of evidence.

The EPA's Office of Underground Storage Tanks (OUST) reports the number of cases of Leaking Underground Storage Tanks remaining unresolved exceeds 70,000 across the U.S. The EPA data also indicates the average cost of cleanup as US$130,000.  As with any data, it's important to look at the distribution of data, not just averages.  A vivid (maybe too vivid) example of this “flaw of statistics” is the fact that the average age of diaper wearer is somewhere near middle age, let’s say 45 years old.  Drilling down into the data available from individual state UST cleanup funds, we find many examples of cleanup costs exceeding US$1.0M, sometimes with no end in sight.  We can reasonably infer from the OUST data that the less complex sites have been resolved at a lower cost of cleanup, leaving the more complex sites yet to be addressed.  This begs the question – WHY?

COLUMBIA Technologies do Brasil, Ltda. Continues to Build Relationships in Latin America at the V International Congress on Subsurface Environment (CIMAS 2017) 

SÃO PAULO, BRASIL – October 30, 2017 – COLUMBIA Technologies do Brasil, Ltda,  a leading environmental assessment and analysis firm in Brasil will be in attendance at the V Congresso Internacional de Meio Ambiente Subterrâneo in São Paulo, Brasil.  COLUMBIA Technologies do Brasil provides high-resolution site characterization assessments to aid property owners in reducing the risk, uncertainty and cost of contaminated land investigation and remediation. COLUMBIA will attend with their joint venture partner, Aragon Perfurações e Sondagens, a services firm offering the largest array of advanced environmental drilling equipment in Brasil.

COLUMBIA’s CEO, John Sohl, and the Aragon staff will be available to answer questions regarding advanced site characterization technologies and strategies, the latest rock coring direct push equipment, and SmartData Solutions®. 

 COLUMBIA Technologies, an industry leader providing High-Resolution Site Characterization services throughout North and South America is pleased to announce Scott Pieper as rejoined its team as Operations Manager.  In his new role,  Pieper will directly oversee field operations including all direct sensing and certified mobile laboratory services throughout the Americas.

Pieper brings 35 years of environmental project management, spill response, site remediation, and hazardous materials management experience to our team.  He has operated throughout North and South America across all of the platforms that COLUMBIA Technologies operates.  His experience includes the operation and maintenance of certified mobile environmental laboratories, high-resolution characterization tools including the Membrane Interface Probe, the Hydraulic Profiling Tool, and Laser Induced Fluorescence systems.

"While Scott has a lot of field experience, what is more exciting to us is his team leadership and strong customer support.  We can count on Scott to find the correct, safe solution when difficult situations arise," commented John Sohl, CEO.

COLLABORATIVE TEAM EFFORT HELPS MONETIZE THE COST OF LNAPL CLEANUP FOR TDEC

COLUMBIA Technologies was selected by PM Environmental to support a high-resolution assessment of a former retail gas station with persistent LNAPL contamination.  The goal of the assessment was to evaluate for the Tennessee Department of Environment & Conservation the impact of better information on monetizing the cost of long-term correctives action at these types of sites.  The site is one of 246 remaining "difficult to resolve" sites in Tennessee and is typical of the many of over 16,000 remaining Leaking Underground Storage Tank sites in the U.S.  The project involved a careful review of historical documents, cleanup activities, and extended field activities after hours and at night.   

Detailed information gained through this effort delineated an extensive amount of residual gasoline within difficult soil conditions highlighting the need for careful consideration of remedial alternatives.  The team employed the guidelines of the ITRC Technical and Regulatory Guidance for Evaluating LNAPL Remedial Technologies for Achieving Project Goals.