Earth Stewardship

Derbowka David R, Chief Executive Officer

Dave Derbowka - CEO

Derbowka is the founder and Chief Executive Officer of Passive Remediation Systems Ltd. (PRSI) and oversees the  operation and growth of the company. Since establishing PRSI in 2004, Mr. Derbowka has worked on projects globally and to his credit PRSI became affiliated in 2013 as ISO 14064, International Standard for GHG Emissions Inventories and Verification, compliant. Mr. Derbowka has over 20 years of experience and is considered as an expert in the fields of  rhizoremediation and phytoremediation that result in the remediation of contaminated groundwater, soils, soil vapours and sediments. Mr. Derbowka routinely consults on complex environmental site assessments for sites impacted by chlorinated solvents, petroleum hydrocarbons, and metals.

Mr. Derbowka has been a member of the Poplar Council of Canada since 1996, contributes research information and has authored numerous white papers on the subjects of rhizoremediation and phytoremediation.

Prior to PRSI, Mr. Derbowka founded and chaired the Okanagan Ground Water Protection Agency, a widely recognized environmental protection organization that researched and enforced groundwater protections legislation in the Okanagan area of British Columbia.  Mr. Derbowka wrote the water back flow prevention act for municipalities and provided critical direction to the development of water protection bylaws. He oversaw groundwater contamination, source water protection, contaminant site optimization and wellhead protection. Mr. Derbowka, a founder,  is the chairman of Armstrong Spallumcheen Environmental Trust (ASET) (, a volunteer organization that provides bursaries to youth pursuing environmental related post-secondary education, and empowering communities to live with environmentally sustainable practices. Mr. Derbowka contributes regularly, editorials on environmental subjects through his website and local sources.

Helferty Lloyd, Sustainable BioChar Expert

Lloyd Helferty - BioChar Expert

Mr. Helferty is an engineering technologist with more than 10 years of experience working for various multinational corporations in Canada and around the world, providing project and system support for domestic and international firms undertaking engineering projects and activities related to research, development and deployment (RD&D). ​Mr. Helferty has a solid background and experience undertaking various aspects of field commissioning, sales support, pre-planning and site preparation, pre-shipment and post-shipment testing.

M​r. Helferty is ​considered to be one of the nation’s pioneer leaders in the development of the Biochar industry and ​his expertise includes professional Engineering Support Services to assist engineering and R&D teams undertake projects and deploy these technologies. He strives to integrate Biochar into the new “Green economy” and make the Canadian Biochar industry the gold standard of innovation, technology, job creation and growth within this emerging industry.