Meet Our Environmental Consultants

Piotr Chmielinski is a Board Certified Industrial Hygienist (CIH) with more than 25 years of experience. He is certified by the American Board of Industrial Hygiene (ABIH) and has directed HPE as…

Brent Sharrer is a Board Certified Industrial Hygienist (CIH) and Director of the Industrial Hygiene division at HPE. Brent has been with HPE for over 25 years and has extensive…

Jesse Sanders is a professionally trained geochemist and environmental consultant with five years of experience in environmental consulting and engineering geology. His duties at HPE include environmental due diligence, multi-media…

Jonathon Hall is the Director of Environmental Microbiology and a Board-Certified Industrial Hygienist (CIH) with over 20 years of experience providing consulting and investigative services in indoor air quality and…

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…

Jason Edwards serves as Senior Project Manager in HPE's Industrial Hygiene division. He is responsible for managing and conducting environmental testing as well as building surveys and abatement monitoring in…

Katherine Nelson has held the position of Assistant to the Director of Industrial Hygiene at HP Environmental since joining in 2016. She oversees daily office operations in the Industrial Hygiene (IH)…

Alex Smalley holds the title of Assistant Project Manager at HP Environmental. He has practiced multiple facets of industrial hygiene over the past eight years, including project oversight for environmental…

Dr. Maximilian Chmielinski completed his PhD at the University of Washington researching ultraviolet (UV) radiation exposure in agricultural workers under the supervision of Dr. Christopher Simpson. His academic work contained…