We help you navigate safely through the unexpected and build trust for the future

The virus that causes COVID-19 is spread from person to person and by contact with surfaces. The virus is expelled in large numbers when people sneeze and cough. A sneeze may produce some 40,000 droplets of saliva with each carrying up to two million virus particles for a total potential delivery approaching 100 billion virus particles in a single sneeze from an infected person.

Geosyntec has developed a validation approach for disinfection programs which includes sampling and testing to identify whether the surfaces in our client’s facilities test positive or negative for the virus. This approach can be tailored to each facility and provides our clients with verification data in a summary report indicating if and where virus particles are detected. In the case of detections, the report provides recommendations for further disinfection of areas with positive test results.

Geosyntec has developed protocols to sample various surfaces (e.g., desks, countertops) using composite wipe sampling. Our SARS-CoV-2-specific virus analytical testing in our SiREM genetics lab allows us to collect wipe samples preserved on site and shipped to our laboratory to determine the efficacy of the disinfection process and provide trust-building confirmation that facilities are properly cleaned.

Geosyntec's Integrated Approach from Virus Sampling to Confirmation Reporting

Our approach for disinfection programs includes wipe sampling and testing to identify whether the surfaces in our client’s facilities test positive or negative for the virus. This approach is tailored to each facility and provides owners or operators with the information necessary to make informed decisions regarding next steps to best manage their concerns associated with COVID-19.

  • Sampling Workplan and Testing Checklist Development
  • Field Sampling and Data Collection
  • Reporting
  • Confidentiality

Contact Us

Duane Graves, Ph.D.

Duane Graves is a microbiologist and subject matter expert with more than 30 years of experience solving challenging problems in biotechnology, biological contamination, forensics, remediation, and environmental microbiology and chemistry. A recognized expert in developing and deploying practical innovations for pathogenic and biological agents, he implemented the first commercial application of real-time quantitative polymerase chain reaction (qPCR) for the onsite detection of Anthrax for the US Postal Service. He has worked with hotel management firms, public buildings, the US Air Force, NASA, insurers, a nuclear power plant, various industries, and attorneys to address microbe-related issues and support litigation.

Contact Duane Graves at This email address is being protected from spambots. You need JavaScript enabled to view it. or +1-865-330-0037.

Phil Dennis, M.A.Sc.

Phil Dennis has over 30 years of experience in research and management of molecular biology, microbiology, and environmental remediation laboratories, including molecular genetic testing services, and development of new molecular services to address emerging environmental challenges and client needs.

Contact Phil Dennis at This email address is being protected from spambots. You need JavaScript enabled to view it. or +1-519-515-0836.

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