OVC Board of Directors

We want to thank all of the Air & Waste Management Association members and non-members who have, or continue to, generously donate their time to run the Ottawa Valley Chapter.

The 2022 A&WMA-OVC Board Members are:

David Cotsman,


David Cotsman is a Program Engineer at Transport Canada. Prior to joining the federal government, David worked for RWDI AIR Inc. beginning in 2005 and served as a Project Manager and Air Quality Specialist in RWDI's Ottawa office. He is also a licensed Professional Engineer in the province of Ontario. David has been involved in the technical aspects of many air quality-related projects including: comprehensive environmental impact assessments; emission inventories; advanced air quality dispersion modelling; regulatory emission reporting; regional airshed modelling; fugitive dust impact assessments; and Environmental Compliance Approvals. David specializes in dispersion modelling, odour assessments, and fugitive dust assessments and mitigation and worked extensively in the mining industry.

Giulia Brutesco, Past Chair

Giulia is the Vice President, Policy and Regulatory Affairs at the Canadian Fuels Association and focuses on developing solid environmental, health and safety performance policy through a multi-stakeholder, consensus-based approach. Previous environmental experience includes managing the environmental department of a steel mill and policy development for the electricity industry. Giulia joins the A&WMA board with over 15 years of regulatory development and compliance experience relating to air emissions, wastewater, safety, security and hazardous waste management.

See Message from the Chair

Colin Welburn

Colin has been working in the environmental industry for more than 20 years. His roles have included: researcher and lecturer at Carleton University, project manager and air quality specialist with RWDI, and partner and Engineer of Record for his own consulting firm, with clients in the Ottawa Valley, Southern Ontario, and Western Canada. Colin has been a member of the AWMA since 1999 and presented research papers on air dispersion modelling and air emissions management at Annual AWMA Conferences in Hartford and New Orleans.

Holly Dole, Treasurer

Dr. Holly Dole obtained her Ph.D. in Chemical Engineering from the University of Ottawa in 2016, where her project focused on the removal of volatile organic compounds from the air through the development of new nano-structured catalysts. Holly has a wide range of laboratory research experience, from evaluating, and characterizing novel materials for energy production to optimizing environmentally-friendly chemical processes. She is currently a Research Scientist at Natural Resources Canada where she is involved in projects with respect to the characterization and testing of new materials for thermal energy systems and the optimization of CO2 utilization processes that use novel nano-catalysts and gas adsorbents. She also teaches part-time at Algonquin College in the Department of Applied Science and Environmental Technology.

Nadine Frost

As Director of Regulatory Affairs at Fertilizer Canada, Nadine Frost works to consolidate and address regulatory issues and shape government policy relevant to the fertilizer industry. Nadine joined Fertilizer Canada in 2015 as an ECO Canada intern, and is actively pursuing her Environmental Professional (EP) certification through ECO Canada. Nadine joined the A&WMA Ottawa Valley Chapter membership in early 2018.

Following her BSc. (Honours) in Toxicology from the University of Guelph, Nadine completed her MSc. in Chemistry from Carleton University (2015). Her research was focused on the use of synthetic DNA aptamers as recognition elements in biosensors to detect harmful agricultural mycotoxins in the field.

Tugce Erdem, Student Representative

Tugce is an Exhaust Dispersion Scientist at RWDI. She is also a recent Master's graduate in Environmental Engineering at Carleton University, where her research was on the sensitivity of GEOS-Chem modelled PM2.5 concentrations to the variability in biomass burning emission inventories in Canada. Tugce joined A&WMA Ottawa Valley Chapter in 2020.

Tyler Anderson

Tyler is an environmental project manager with over a decade of progressive technical and project management experience in the environmental industry. Tyler is currently a Senior Project Manager with Bishop Water Technologies and has past work experience as an environmental consultant with SNC-Lavalin. Tyler routinely leads multi-disciplinary teams consisting of subject matter experts and specialist subcontractors to establish and meet project goals. In addition to his technical and project management work experience, Tyler has also led numerous environmental capacity building programs for Indigenous communities in Western Canada and volunteers on with several organizations related to education, municipal and environmental causes. Tyler has an Environmental Technology diploma from Fleming College and has continued to expand on his technical skills and knowledge throughout his career. Tyler is a Certified Engineering Technologist with the Ontario Association of Engineering Technicians and Technologists, an Applied Science Technologist with The Applied Science Technologists and Technicians of British Columbia and an Environmental Professional with ECO Canada.

Chris Bestfather

As an environmental engineer consultant in the Air, Acoustics and Climate Change group at SNC-Lavalin, Chris has over a decade of project management experience assisting industries with environmental emissions, air quality and acoustics. Chris has been involved in a variety of projects across Canada which include: air dispersion modelling and noise assessments in support of Provincial approvals such as Environmental Compliance Approvals (ECA) and Environmental Activity Registrations (EASR), air and noise controls for rail and light rail transit systems, environmental impacts assessments, zoning and industrial/residential encroachment consultations, toxic reduction plans, safety impact assessments, implementing air quality sampling programs, and developing tools to manage air, odour, and noise risks. Chris is a licensed Professional Engineer in the province of Ontario and holds a Master’s in environmental engineering from the University of Ottawa (thesis topic: separation of landfill gas by adsorption). Chris has been an AWMA member since 2009 and presented at the 112th Annual Conference & Exhibition in Quebec City (2019).