December 2019 Land Science Newsletter

Blayne Hartman PhD, President of Hartman Environmental Geoscience

As a nationally recognized expert on soil vapor sampling, soil vapor analysis, and vapor intrusion, Blayne Hartman, PhD, President of Hartman Environmental Geoscience continues to leverage his 40 years of experience to provide solution leadership on soil gas methods and vapor intrusion to regulatory agencies in over 35 states, and counting. Although he has amassed diverse experience in a specialized field, he is currently focusing his efforts on indoor air testing. He shares, “I currently do indoor air testing around the country using high-resolution, real-time analyzers. Over the years I’ve developed expertise in the testing of vapors for a suite of volatile compounds that the EPA has strict regulations on.” Learn more in our client spotlight.


Blayne Hartman PhD, President of Hartman Environmental Geoscience

Webinar on Continuous Monitoring Data

The Vapor Intrusion Risk Pathway

Land Science is pleased to present a webinar with vapor intrusion experts, Dr. Blayne Hartman of Hartman Environmental and Dr. Mark Kram of Groundswell Technologies. During this webinar presentation, Dr.s Hartman and Kram discuss updates regarding vapor intrusion pathway issues, as well as the use of continuous monitoring data. Vapor intrusion continues to be a hot topic among environmental practitioners and represents an opportunity in the industry for firms to expand in providing informed and proper VI guidance and best practices for their clients’ sites. The recording of this free webinar is now available.

The Vapor Intrusion Risk Pathway

About the Presenters:

Blayne Hartman, PhD
President, Hartman Environmental Geoscience

Dr. Hartman is a nationally recognized expert on soil vapor sampling, soil vapor analysis, and vapor intrusion. He has provided training on soil gas methods and vapor intrusion to state regulatory agencies in over 30 states. His organization, Hartman Environmental Geoscience, provides vapor intrusion, soil gas and analytical expertise.

Mark Kram, PhD
Founder and CTO, Groundswell Technologies

Dr. Mark Kram is the Founder and CTO for Groundswell Technologies, Inc., a group specializing in automated cloud based monitoring and modeling of environmental sensor and analytical instrumentation networks. Dr. Kram has over 30 years of experience using innovative environmental assessment techniques, has authored articles, national standards and book chapters on the subject.



FAQ: The Vapor Intrusion Pathway

 FAQ: The Vapor Intrusion Pathway
The questions summarized in this FAQ as part of the Land Science “Distinguished Speaker” webinar series, were provided by our guest presenters, Blayne Hartman, PhD and Mark Kram, PhD in response to questions fielded throughout the webinar presentation. REGENESIS and Land Science are grateful to both Dr. Hartman and Dr. Kram for sharing their expertise. Land Science is dedicated to providing relevant, industry-leading content in support of client partners globally.

 FAQ: The Vapor Intrusion Pathway

Effective Use of Vapor Mitigation Systems Speeds Up Approvals and Creates a Safe Indoor Environment
In situations where groundwater contaminants at brownfield properties are either too difficult or expensive to remove, it is necessary to mitigate the human health risks posed by vapors entering overlying structures. An effective vapor barrier system can reduce those risks while lowering the cost of site remediation and expediting construction. Opportunity Zones, many of which are environmentally impacted properties, can be an excellent vehicle for investment and allow developers to generate value for both themselves and local communities. To learn more about our other Opportunity Zones tips, download the eBook.
Effective Use of Vapor Mitigation Systems Speeds Up Approvals and Creates a Safe Indoor Environment


Innovative Vapor Barrier Systems

A New Vapor Barrier with Unparalleled Chemical Resistance

The Land Science research and development team of scientists have invested years in developing the TerraShield vapor barrier system. The innovative use of two separate layers of aluminum combined within flexible polyethylene results in the TerraBase layer having >100X greater chemical resistance compared to HDPE (10mil)TerraShield was designed specifically to eliminate risk of exposure by employing innovative technologies to provide best-in-class chemical resistance and durability. Backed by a robust warranty and installed by Land Science-certified applicators, each TerraShield installation is rigorously tested to ensure the quality of every seal and ultimately the complete vapor barrier system installed. Learn more about TerraShield using the link below.
Innovative Vapor Barrier Systems

A New Advanced Nitrile Composite Barrier System

Nitra-Seal employs a chemically resistant nitrile latex. Nitrile is recognized throughout the environmental engineering industry as being chemically resistant and is often used in personal protective equipment when working on hazardous waste sites (e.g. nitrile gloves). Laboratory testing has shown up to 10X higher chemical resistance when compared to any other vapor barrier material on the market. Nitra-Seal has been lab-tested and proven to be highly effective against VOCs like chlorinated solvents and petroleum contaminants, and methane. Learn more about Nitra-Seal using the below.

A Cost-Effective Barrier with Superior Constructability

MonoShield is a chemically resistant and easy-to-apply barrier specifically designed as a preemptive solution for vapor intrusion at brownfield redevelopment sites. It is backed by unparalleled design support and a network of certified applicators who can ensure quality installtion. As with any construction project, but especially with regards to a voluntary preemptive action, cost is often a critical factor; MonoShield was designed with this in mind. One of the most significant advantages is reduced installation time. MonoShield can be installed 30-40% faster than alternate plastic sheeting or HDPE systems. This saves money by reducing contractor costs and shortening the development timeline. Learn more about MonoShield using the link below.

The Original Composite Barrier System Adapted from Waterproofing Materials

Geo-Seal is a sub-slab composite barrier system designed for waterproofing and adapted for use in blocking low concentrations of chemical vapors on brownfield sites. Geo-Seal is placed between the building foundation and the soil pad to minimize water vapors and minor concentrations of chemical vapors from permeating through the slab. Geo-Seal is rapidly applied and a broad certified applicator network is available. Learn more about Geo-Seal using the link below.

As risk standards and other compliance issues associated with contaminant vapor intrusion continually evolve, engineered controls like those offered by Land Science provide a practical, cost effective solution to eliminate risks. Recent advances in contaminant vapor intrusion mitigation developed by Land Science have assisted developers, engineering firms, regulators, and land owners by providing technically sound solutions effectively mitigating these issues. Download the brochure to learn more about vapor intrusion solutions.

Upcoming Events

NGWA Groundwater Week

12/3 – 12/5/2019, Las Vegas, NV
Visit conference website

A&WMA 2020 Annual Seminar

1/23/2020, Buffalfo, NY
Visit conference website

SAME Small Business Day

2/6/2020, Waltham, MA
Visit conference website

Alaska Forum on the Environment

2/10 – 2/14/2020, Alaska, AK
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Emerging Contaminants Summit

3/10 – 3/11/2020, Westminster, CO
Visit conference website

30th Annual International Conference on Soils, Water, Energy, and Air

3/16 – 3/19/2020, San Diego, CA
Visit conference website


REGENESIS has remediation experts based worldwide to assist you in your brownfield site cleanup. As the technology leader in advanced bioremediation solutions, we can help ensure success on your next remediation project. Use the map on our website to find your regional REGENESIS contact today.








Aimee Plowman

Aimee Plowman

Southeast District Manager

Aimee Plowman - Land Science Technologies

Aimee Plowman: (405) 323-0061

Aimee Plowman is the Southeast District Manager of the Land Science® division of REGENESIS, Inc., and is based in Atlanta, Georgia. Aimee’s role includes providing technical support in the design and installation of TerraShield, Nitra-Seal, MonoShield and Retro-Coat vapor mitigation systems, and educating the environmental community on the advancements in vapor intrusion barrier technology, implementation, and quality control by making presentations to environmental firms, regulatory agencies, and developers. Aimee received a Bachelor of Science in Geology and is currently pursuing a Master of Science in Geology from the University of Oklahoma in Norman, Oklahoma. In her free time, she enjoys a variety of outdoor activities such as hiking, running, fishing, and going to the beach.

Blayne Hartman

Industry Expert Spotlight: Blayne Hartman PhD, President of Hartman Environmental Geoscience

Blayne Hartman PhDAs a nationally recognized expert on soil vapor sampling, soil vapor analysis, and vapor intrusion, Blayne Hartman, Ph.D. and President of Hartman Environmental Geoscience, a valued Land Science® client, continues to leverage his nearly 40 years of experience to provide solution leadership on soil gas methods and vapor intrusion to regulatory agencies in over 35 states, and counting. Prior to forming Hartman Environmental Geoscience nearly 10 years ago, he specialized in training County and State regulatory agencies across the U.S., and many of the USEPA regions, the U.S. Department of Defense, and numerous stakeholder groups and consultants.  Although he has amassed diverse experience in a specialized field, he is currently focusing his efforts on indoor air testing. He shares, “I currently do indoor air testing around the country using high-resolution, real-time analyzers.  Over the years I’ve developed expertise in the testing of vapors for a suite of volatile compounds that the EPA has strict regulations on.” To prepare for a career centered around making an impact on our earth’s environment, Hartman earned his Ph.D. in Geology, Geochemistry, and Oceanography from the University of Southern California, (USC) and preceded that with a Masters in Earth Sciences, also from USC. He began his university studies at Clarkson University, in Potsdam, New York, where he received a B.S. in Chemical Engineering, after developing an interest in earth sciences while in high school. He continues, “Early on I went to work for Union Oil Company in Brea, CA.  Based upon my background, they assigned me to the dissolved ocean seepage project, which they were looking into at the time.  I saw an opportunity to offer this service to other oil companies, so I opened my own business in 1988 offering this service and other ocean-related services, such as coring.  Oceanography was a tough and risky business back then, so I decided to move into the environmental business in 1990, offering on-site analysis.”

To stay abreast of new industry trends and emerging technology, Hartman teaches continuing education courses around the country and in several countries. This year his instruction included a course titled, Vapor Intrusion Pathway, in conjunction with Argonne National Laboratory in Chicago at Argonne’s Conference Center. The course covered the latest regulatory updates (State & Federal), provided a review and updates on assessment and mitigation methods, and provided a refresher on key topics relating to the VI risk pathway. When asked how he’s seen the industry change over the years, he points to the advancements made in data resolution and real-time data delivery. He shares, “The biggest change I’ve seen in the industry is the embrace of high-resolution data and real-time data telemetry.  20 to 30 years ago we would collect soil samples at 5-foot depth intervals at pre-determined locations on a site, send them to a lab, wait a week or two for results and then figure out what to do next.  Now, we are collecting continuous data through the soil column, getting real-time results and beaming the data to a person’s desk enabling real-time decisions on what to do next while the crews are still in the field. The same is true with indoor air sampling. Rather than collect a few discrete samples and sending to a lab, we are analyzing continuously with automated instruments and sending the data to the web in real-time.”

When it comes to working with Land Science®, Hartman appreciates and enjoys the level of interfacing he receives, which has led to building strong relationships. “Although I really don’t work with Land Science® directly,” he says, “I do get involved with the executive team.  I’ve had a relationship with Land Science® for over 10 years now and I know all their principals. The biggest mutual benefit we both receive from the relationship is exposure. They have a strong marketing presence and client database that I do not have, and I have a reputation in the vapor “world” that brings exposure to them.” When asked what he enjoys most about his work, he points to the satisfaction he receives from assisting clients in overcoming significant challenges. He shares, “Helping people out of predicaments can be very satisfying.  In the environmental business, we are generally more like grim reapers than heroes.  I often say to my clients, ‘Hopefully you won’t see me again.’  So, it’s very rewarding when I get a client out of a jam quickly and inexpensively.”

Married and residing in Solana Beach, CA, Hartman has two children and one stepdaughter. His son works with him and has steadily gained experience. He continues, “He has become my field chemist. In 2019 alone, he has completed field jobs in Belgium, Boston, Vermont, Seattle, Portland, OR, Indianapolis, Michigan, and numerous jobs all around CA.  I couldn’t handle this by myself, and I’m now getting him involved in the business development side of things.” Outside of his work, Hartman enjoys various outdoor activities, and he’s been playing handball for over 40 years. “I do all kinds of things outdoors,” he says, “I’ve waterskied the Colorado River, am a small plane pilot, enjoy snow skiing and backpacking, and have also river-rafted the Grand Canyon twice. As you can probably sense, I love being outdoors, and my earth sciences background translates into wanting to be outside, since the outdoors is the laboratory for geologists and oceanographers.” And what does he see the future holds in environmental assessment? He concludes, “The future will bring more real-time, higher resolution analysis streamed to the internet for rapid decision-making. Like everything in life, real-time information is the present and the future.  Just look at people on their cell phones- constantly engaged, accessing real-time information.  The same is happening in the environmental field.  More data enables better understanding of the situation, and real-time data enables faster decisions, which in turn, saves time and expense.”

Land Science® is proud to have Blayne Hartman, President of Hartman Environmental Geoscience, as a valued client and partner in environmental assessment, and appreciates his highly specialized experience and knowledge base in providing successful outcomes for Land Science® and its clients.