Stephen T. Hall, President
, MS, Geochemistry, PhD program, Geochemistry
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Former Adjunct Professor and Research Associate on the George Mason University Radon Research Project.
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Research and several professional presentations to the EPA on the correlation between radon remediation techniques, construction/HVAC factors, and indoor radon; and using geology and the prediction of radon sources to remediate large buildings and older difficult homes.
Quantitative remedial diagnostics, design and installation of both pre- and post-construction remedial systems for radon, water vapor and numerous hazardous vapors.
Development and implementation of radon soil testing techniques for determining indoor radon potentials.
Design and installation of vapor extraction systems by sub-slab, block wall, and crawlspace depressurization for radon and various volatile and flammable compounds.
Certified Professional Geologist - VA#701, Charter member, National Radon Association; Member, American Association of Radon Scientists and Technologists (AARST)
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Prime Contractor Associate-EPA Office of Radiation Programs and EPA Office of Research and Development
NRSB Certified in Mitigation and Testing, EPA and NEHA Certified in Radon Testing
James Humphryes, Vice-President
Installation and design of over 10,000 radon remediation systems in a variety of structural complexities.
Design and installation of vapor extraction systems by sub-slab, block wall, and crawlspace depressurization for radon and various volatile and flammable compounds.
Design and implementation of quantitative remedial diagnostics.
NEHA and NRSB Certified in Mitigation, EPA Registered in Radon Remediation
Norman L. Rodier, Branch President,
BS
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Experience in building construction since 1976.
Remedial system design, development, and implementation for the elimination of indoor radon hazards in a variety of structural complexities.
Design and implementation of quantitative remedial diagnostics.
NEHA and NRSB Certified in Mitigation, EPA Registered in Radon Remediation
Pete Semak, Chief Technician
Installation and design of over 7,000 radon remediation systems in a variety of structural complexities.
Design and installation of vapor extraction systems by sub-slab, block wall, and crawlspace depressurization for radon and various volatile and flammable compounds.
Design and implementation of quantitative remedial diagnostics.
NEHA and NRSB Certified in Mitigation
Other professional corporate and staff member qualifications
Virginia Contractor's License in Radon Mitigation
Maryland Contractor's License
Maryland Home Improvement License
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PhD and MS degrees in geochemistry.
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Mechanical and Civil Engineering.
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Professional construction experience in plumbing, roofing, electrical, and carpentry.
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Successful remediation of over 30,000 homes, 40 schools, and hundreds of apartment, condominium and commercial office buildings.
