MPCA Announces Vapor Intrusion Stakeholder Advisory Group

In March 2018, the Minnesota Pollution Control Agency (MPCA) announced the formation of a Vapor Intrusion Stakeholder Advisory Group to provide input to the MPCA as they develop its best management practices (BMPs) for vapor intrusion mitigation of commercial and industrial properties in Minnesota. The Stakeholder Advisory Group is comprised of individuals from several affected industries including commercial real estate and redevelopment, non-profit organizations, commercial lenders, grant agencies, legal firms, state agencies and environmental consultants.  Kaitlin Thell Ouverson, a project engineer from Braun Intertec, was invited by the MPCA to be one of three people to represent the environmental consulting...

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[OnDemand Webinar] Mitigation of Vapor Intrusion in Large Commercial and Industrial Buildings

Mitigation of Vapor Intrusion

Mitigation of potential organic vapor migration into buildings has become a requirement in many states to protect occupants of buildings located near contaminated soil and groundwater, including Brownfield sites undergoing redevelopment. Complete the form to watch our free webinar where we will discuss design and operation of passive and active vapor mitigation sub-slab ventilation systems (SSVS). We will provide examples of system design and construction components and operating data for several existing systems located in the Minneapolis and Milwaukee metropolitan areas....

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[OnDemand Webinar] Vapor Intrusion: How a Building Works and Breathes

Vapor Intrusion Webinar

Watch a recording of our vapor intrusion webinar. Our webinar will strengthen your knowledge on building sciences with a focus on ventilation systems, design and operation that impacts the environmental vapor potential in a building.   Our presentation topics include: Understanding how building air movement works What can effect the movement of vapor through a building  How air moves through a building  Considerations when designing ventilation and vapor mitigation systems Different forces that affect air movement...

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Vapor Intrusion: How a Building Works and Breathes

vapor intrusion mitigation system

Vapor intrusion is a common issue that both environmental consultants and building scientists deal with every day. From an environmental perspective, vapor intrusion can come from old dry-cleaning chemical spills, various solvents, gasoline and diesel materials and much more. As a building scientist, I mainly deal with vapor intrusion in the form of water vapor. The principles are roughly the same, but it’s important to understand how a building lives and breathes throughout its lifetime, to help prevent harmful vapors from entering buildings. There are some natural occurrences, such as the physics of air movement, height and weather that can...

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