Industry Spotlight: Nathan Shamosh

As President of Earth Mitigation Systems, an environmental consulting company and valued Land Science® client, Nathan Shamosh sees the benefits to owning and managing his own vapor intrusion firm, and appreciates the diversity and variety that comes with managing a wide variety of consulting projects over the years. He begins, “I’m fortunate to have developed great relationships with smart people throughout my work experience, and these relationships have allowed me to learn and connect with other like-minded professionals. Ultimately my working relationships have led to hundreds of successful consulting projects. Being able to look back at complex design build projects, or a firm tripling revenues because of specific strategies we implemented, is a gratifying experience.”

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Featured Case Study: Cross-Team Collaboration Moves New Public Library and Town Hall Complex Forward

A growing community near Charlotte, North Carolina was seeking a site to construct a new town hall and public library complex. SUMMIT Engineering, Laboratory & Testing, P.C. (SUMMIT) conducted an environmental assessment at the property in April 2020, confirming that petroleum hydrocarbon (PHC) contamination was present. SUMMIT recommended installing a vapor intrusion mitigation system (VIMS) to the property development team, knowing it would be the most effective approach to address PHC contaminant vapors. In considering their options, Nitra-Seal, a state-of-the-art VIMS offering proven chemical resistance and vapor intrusion protection, was selected by the development team.

Nitra-Seal: Incorporates a nitrile-modified spray-applied core and dual polyethylene sheets

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.

Featured Video: Spotlight on Experience Aimee Plowman, Southeast District Manager

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 Master of Science in Geology and a Bachelor 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.

Featured Project Snapshot: Retro-Coat Utilized to Prevent Harmful TCE and Chloroform Vapor Intrusion

A former industrial manufacturing facility in Greenville, SC was purchased for redevelopment in 2017. Building improvements were planned to include a warehouse, offices and self-storage units to serve a growing commercial area. Prior to purchasing the site in 2017, the current site owners entered into a Voluntary Cleanup Contract and Brownfields agreement with the South Carolina Department of Health and Environmental Control (SCDHEC). The Brownfields agreement allowed the site owners to purchase the site while receiving SCDHEC liability protection for existing environmental contamination by agreeing to perform certain environmental assessment, mitigation, or remediation activities.

Developed by the R&D Team at Land Science, the Retro-Coat system is the most appropriate coating technology for vapor intrusion protection.

The Retro-Coat Vapor Intrusion Coating System is a complete product line that consists of chemically resistant materials to properly protect existing structures from the threat of contaminant vapor intrusion. A vapor intrusion condition is most commonly found when the existing structure was operating as, or in close proximity to, a dry cleaner, gas station, or manufacturing facility.

Have a Vapor Intrusion Project? Get Started Today!

To receive a custom vapor intrusion solution, please call 949.481.8118 or visit One of our Technical Solutions Managers will review your project details and provide you with a customized vapor intrusion solution designed to achieve your site goals.