GeoEnviroLogic Professional Development

Guy is a Senior Hydrogeologist and Principal with Golder Associates Ltd. in Victoria, B.C., where he provides senior technical review and direction for environmental investigations, groundwater protection strategies and remedial projects across Canada and globally.  Prior to arriving in British Columbia in early 1991, Guy provided environmental services in Waterloo, Ontario and Redmond, Washington.  For the past 25 years his work has focused on contamination issues at solid waste, creosote, coal-tar, hydrocarbon and chlorinated solvent sites across Canada, the U.S., Australasia, South Africa and Europe. Guy is a Registered Professional Engineer in BC, the Yukon, Saskatchewan, and Nova Scotia. He serves as a member of the Roster of Professional Experts in BC, and is a frequent speaker at conferences and educational institutions.

Beth has been an environmental consultant and professional biologist for over 23 years, specializing in ecological risk assessment (ERA). She is a partner at Azimuth Consulting Group and works for a wide variety of government and industrial clients delivering risk-based solutions. In the early 1990s, she led the team that developed the Canadian Council of Ministers of the Environment guidance documents for ERA. More recently, she led the Science Advisory Board for Contaminated Sites’ (SABCS) (1) “Detailed Ecological Risk Assessment Task Group” and (2) the "Risk Forum" - a think-tank to support the development and application of good practice in risk assessment in BC. Beth is appointed to the BC Roster of Professional Experts as a risk assessor. She is also a Ministry of Environment-contracted "External Reviewer" for ERAs prepared in support of instruments under the Contaminated Sites Regulations. Beth is editor of the Society of Environmental Toxicology and Chemistry's "Ecological Risk Assessment Advisory Group" community website.

With eighteen years of experience in ecological and human health toxicology, Mike is a Senior Toxicologist. His responsibilities include (i) project direction and senior review ii) design and coordination of toxicological studies; iii) assessment of risks and adverse effects to the environment and human health from exposure to hazardous wastes; and iv) integration of environmental issues with risk management and sustainability decisions. Co-author of several guidance documents for organizations such as Health Canada, the Province of British Columbia and the World Bank, Mike has a thorough appreciation for the relationship between science and policy.

Ross Wilson is a board-certified expert in toxicology with 18 years of experience in the human health risk assessment of chemicals found in air, soil, water and food. He has completed more than 200 risk assessment projects examining potential human health risks from exposures to both carcinogens and non-carcinogens. In addition, he has peer reviewed numerous human health risk assessments on behalf of Health Canada and the BC Ministry of Environment. On behalf of Health Canada, he has developed environmental quality criteria for protection of human health for various metals and organic chemicals. He has also developed guidance documents for acute/subchronic risk assessment, air quality risk assessment and exposure amortization for Health Canada. Since 2005, he has been appointed to the British Columbia Contaminated Sites Roster of Professional Experts as a risk assessment specialist.

Trish Miller is an Associate and Senior Toxicologist/Risk Assessor at Golder Associates.  She has over 18 years' experience conducting human health and ecological risk assessment investigation including senior technical review of sampling plans, integrating objectives and data requirements of RA into work plans and site investigations, review of toxicology testing programs for ecological assessments, coordinating data analysis, developing site-specific remediation standards, liaising with clients, and reporting.  She has managed and directed many HHRA and ERA of complex sites, including RA and remediation programs for large-scale diesel contamination in remote northern communities. 

Trish has also developed provincial matrix standards and water quality guidelines, and derived numerous site-specific risk-based soil, groundwater, and surface water standards. Trish has conducted workshops for corporate environmental managers on the advantages of RA for contaminated site remediation and on general principles and procedures involved in the conduct of RA.  Trish was appointed to the BC Roster of Professional Experts (Risk Assessment) in 2005 and is a practicing member of the Society of Contaminated Sites Approved Professionals.

Dr. Dennis Helsel (PhD, Environmental Science and Engineering, Virginia Tech) has 36 years experience applying statistics to practical issues in environmental sciences. He is the owner and lead scientist of Practical Stats, an environmental statistics training and consulting firm. He has authored two textbooks, "Statistical Methods in Water Resources (2002, with Robert Hirsch), and " Statistical Methods for Censored Environmental Data using Minitab and R " (2012, previously titled Nondetects And Data Analysis), as well chapters in two handbooks and over 50 journal articles. Dr. Helsel was the 2003 recipient of the Distinguished Achievement Award from the American Statistical Association's section on Statistics and the Environment, and of the Dept. of Interior's Distinguished Service Award in 2007. He has conducted training classes on environmental statistics in China, Germany, the Netherlands, Finland, Spain, Singapore, and throughout North America.