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John Pfaff

John Pfaff serves as HP Environmental's Director of Environmental and Industrial Hygiene Chemistry. With more than 25 years of experience as an accomplished analytical chemist and laboratory manager, John's expertise…

Jonathon Hall

Jonathon Hall is the Director of Environmental Microbiology and a Board Certified Industrial Hygienist (CIH) with over 10 years of experience investigating and consulting on indoor air quality and industrial…

Ray Petrisek

Raymond Petrisek serves as a senior microbiologist and infectious disease microbiologist at HP Environmental. He is certified by the American Society of Clinical Pathology (ASCP), both as a medical technologist…

Carla Napier

Carla Napier serves as a microbiologist at HP Environmental with technical training in the areas of microbiology, food science and food safety. She manages SARS CoV-2 genetic testing,┬áLegionella spp.┬áculturing, potability…

Josh Bostic

Josh serves as an analyst in environmental chemistry and microbiology at HP Environmental. He is a WELL Accredited Professional and Fitwel Ambassador. With extensive experience in biochemistry, immunochemistry, and geochemistry…

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