Western Regional Manager
Land Science Technologies
Dan is based out of Orange County and is the Western Regional Manager for Land Science Technologies. Dan has 7 years of account management and sales experience in the construction, mobile modular, and insurance industries. He holds a Bachelor of Arts in Communication Studies from San Francisco State University.
FLASH POSTER PRESENTER – Vapor Intrusion: Don't Hold Your Breath
Advancements in Contaminant Vapor Mitigation Technologies
With the ongoing growth and evolution of the vapor intrusion industry, a need has arisen to better protect overlying structures from sub slab VOC vapor migration with innovative technologies. Recent advancements have been made in the technology of vapor intrusion barriers to address this growing need. As vapor intrusion guidance and regulation documents continue to evolve and more is learned about the threat of the vapor pathway, the number of impacted brownfield sites requiring vapor intrusion mitigation will continue to expand.
The previously available vapor intrusion barrier technologies have been plagued with challenges concerning installation, integrity and poor chemical resistance characteristics. Used primarily to mitigate newly constructed buildings from volatile vapors, a composite barrier technology, Geo-Seal®, has been developed to address the chemical resistance and installation limitations of existing vapor barriers offered in the industry. The Geo-Seal® system utilizes the chemical resistance features of HDPE and constructability benefits of a spray applied asphalt latex to offer multiple layers of protection and redundancy, and a cost effective solution particular to vapor intrusion and building construction.
Existing structures present very different challenges to vapor intrusion mitigation. The same mitigation techniques used to mitigate vapor intrusion in new buildings, or small residential structures, are not likely to be cost effective or applicable when mitigating larger structures. Retro-Coat™ is a new coating technology designed to mitigate vapor intrusion into existing structures. The Retro-Coat™ system provides a durable surface for industrial use and vehicular traffic, and offers flexibility with a variety of aesthetically pleasing finishes. Coating the existing concrete slab without the necessity of an additional concrete overlay provides environmental consultants and building owners greater flexibility when selecting a mitigation system for an existing structure. Additionally, greater assurance can be given to building owners that the vapor intrusion concern has been properly mitigated; in some cases, without the need to maintain mechanical sub-slab depressurization systems. Laboratory testing along with real world data will demonstrate the effectiveness of this new coating technology.