Our Team

Over 50 team members working across Western Canada providing industry-leading environmental solutions.​

Who We Are

GCL was founded in 2008 on the principle of providing industry leading environmental consulting services to a wide range of industries across British Columbia, Alberta, Saskatchewan and Manitoba at every stage of the project development lifecycle.

Leadership Team

Our leadership team ensures we maximize client value through timely, innovative and cost-effective solutions that meet regulatory requirements and benefit the environment. This commitment to providing industry-leading environmental solutions has led to strong long-term relationships with our clients and over 3,000 projects successfully completed.

Tony Gregov
Founder & President
Tony is a strategic environmental consultant that has been working in the environmental industry for the last 20 years on a wide variety of projects throughout North America and Eastern Europe. He is an experienced entrepreneur, and skilled in financial analysis having represented clients in managing over 100 million dollars’ worth of environmental site assessments, audits, liability and due diligence evaluations, remediation, reclamation, waste management facilities and associated regulatory reporting. He is a professional Agrologist in both Alberta and Saskatchewan.
Calinda McEwen
Phase I / DSA / Reclamation – Lead
Calinda has contributed to GCL for the past six years. She has over 15 years of technical, management and leadership experience in reclamation, remediation, and surface water management, with work experience in both a regulatory and consulting capacity. She is an effective multi-disciplinary team lead and project manager and is a member of the Alberta Institute of Agrologists.
Lori Vickerman
Operations Leader
Lori Vickerman is a Professional Biologist and Environmental Scientist specializing in environmental site assessments, data gap analysis, and remediation planning. With a Master’s in Plant Cellular and Molecular Biology and experience in mammalian developmental genetics, Lori’s work ethic and technical expertise are well-established. In her role at GCL, she leads Risk Assessments, Phase 2 Environmental Site Assessments, Strategic Project Planning, and Senior Reviews of Remediation Action Plans.
Jeannette Wong
Human Resources, IT and Safety – Lead
Jeannette brings over 18 years of multifaceted experience related to the oil and gas industry. Since joining the GCL team in 2012, she has successfully championed the development of numerous internal processes centred on software, IT, Safety and HR. Her primary focus is on business optimization, internal processes, and innovation, all to support client needs and exceed industry expectations. She is a foundational member of the team and can provide backup to every function and her desire for excellence continually lifts the leadership team.
Tanya Mettimano
Finance – Lead
Tanya joined GCL in 2014 and took a larger role with the company in 2019 as Financial Department – Lead. She has a diverse background and is invaluable to the organization as she brings experience in finance, business operations, office management, sales, and customer relationship experience. She works closely with all departments, compliments all skill-sets and works tirelessly on financial system improvements and supporting business growth.
Heidi Kommnick
Business Support Lead
With over 26 years of experience in corporate operations and program management, Heidi currently leads the Business Administrative System Support (BASS) team, driving innovation and streamlining processes across the company. She excel’s in enhancing organizational effectiveness through strategic project management support, administrative functions, and business improvement recommendations. Her leadership is marked by strong communication skills and a proven ability to build positive corporate relationships.
Rory Campbell
Business Growth & Strategy Lead
Rory recently joined GCL as our Business Growth & Strategy Lead, based in Calgary. He brings over 15 years of experience in environmental consulting, business development, strategic marketing, and operations, with work experience across Western Canada. He is an effective cross-functional team lead and strategist who has developed integrated growth plans and supported the delivery of complex environmental projects.

Technical Leadership

Ryan Puhlmann
Principal Technical Advisor
Ryan has contributed to GCL for the past four years and effectively joined the leadership team in 2020. He has over 25 years of technical, management and leadership experience in reclamation, remediation, and water management across almost every industry in Alberta, both in a regulatory and consulting capacity. He has led numerous initiatives around reclamation certification, industrial applications and financial security programs, and is a professional Agrologist (P. Ag) and Environmental Professional (EP).
Debbie Tainton
Senior Technical Advisor
Debbie Tainton is a Senior Technical Advisor with over 20 years of expertise in liability management and upstream oil and gas site closure across Western Canada. Based in Alberta and a graduate of the University of Northern British Columbia, she brings deep technical insight and leadership experience to GCL Environmental. Prior to joining GCL, Debbie led Canada’s largest reclamation and remediation portfolio at Canadian Natural Resources Limited (CNRL), guiding regulatory closure on more than 1,200 sites annually. Her work has shaped cross-sector collaboration through active involvement with COSIA, PTAC, and CAPP, and she was recognized by CAPP with a leadership award for her impact on research and regulatory innovation.