Key Personnel

Beacon Environmental has earned an enviable reputation for providing accurate, reproducible data and the team has developed easy to use samplers and techniques for sampling soil gas or air that are provided through BeSure Sample Collection Kits.  The professionals at Beacon have extensive knowledge of adsorbent selection and analytical techniques to sample a broad range of VOCs and SVOCs in soil gas, ambient air, or indoor air, whether characerizing sites, assessing vapor intrusion risks, or monitoring emissions in the air.

BEACON was founded in 1999 by Mr. Harry O'Neill, who is the company president and has managed soil gas and vapor intrusion investigations for more than 25 years, working on federal, state, and commercial projects throughout the United States, as well as internationally across six continents.  Under his direction since 1999, Beacon Environmental has achieved DoD ELAP, NELAP, and ISO/IEC 17025 accreditation for the analysis of soil gas and air samples to target trace concentrations of organics using sorbent samplers.  In addition, Mr. O’Neill oversaw the implementation of the quality program that enabled Beacon to become the first NEFAP accredited field sampling and measurement organization (FSMO) in the United States, and the company’s accreditation is for the collection of soil gas and air samples.  Mr. O’Neill has been on the forefront of the acceptance of passive sampling technologies at the national and international level and has managed the implementation of thousands of soil gas and air sampling surveys.  

Harry O'Neill was selected as the lead author to write the ASTM Standard for Passive Soil Gas Sampling that was approved December 1, 2011.

  • ASTM D7758-11Standard Practice for Passive Soil Gas Sampling in the Vadose Zone for Source Identification, Spatial Variability Assessment, Monitoring, and Vapor Intrusion Evaluations

Mr. Steve Thornley is the company's Laboratory Director, who is responsible for sample analyses and ensures that all project samples are analyzed and reported following the highest level of quality assurance procedures in the industry. Mr. Thornley has analyzed and reported data from more than 100,000 soil-gas and air samples and follows accredited analytical procedures that allow BEACON to provide accurate, reliable, and defensible data.

In addition, Beacon continues to demonstrate our continued support of the research community by aligning ourselves with several prominent universities and scientists to ensure we contribute to research and development in innovative soil gas and air testing methods.  The following link provides a summary of publications and presentations provided by Beacon over the past few years.