NSWA Staff

David Trew, PBiol. Executive Director  david.trew@nswa.ab.ca 587.525.6823

David has in his career focused primarily on water quality management and policy development as a scientist, manager and senior manager. He has worked with all manner of stakeholders in the water management area, from scientific research communities and early river basin councils, through to cross-ministry and inter-governmental committees. David is well positioned to guide the organization as it fulfills its potential as the Watershed Planning and Advisory Council for the North Saskatchewan Watershed.

Elisa Brose, B.Sc., B.Ed. Office Coordinator  elisa.brose@nswa.ab.ca 587.525.6822 

Elisa Brose (B.Sc., B.Ed.) has always loved science and water – growing up in Ontario she spent a lot of time at various lakes and rivers. She was introduced to the NSWA through her volunteer work in a Watershed Stewardship Group at a lake west of Edmonton. She is pleased to be able to use her education and science background in working with the NSWA Board, and helping coordinate educational activities, and various other roles.                



Billie Milholland, B.A. Communication Coordinator  billie.milholland@nswa.ab.ca 587.525.6824

Billie started with NSWA in the spring of 2001. Her involvement with economic development in rural communities, experience with public participation and strategic communication techniques are some of the resources she calls upon. Her free-lance journalism exploits span decades, wherein she wrote for Harrowsmith Magazine, Western Producer, Chatalaine, Chickadee and produced weekly columns for various newspapers in Alberta and B.C. The skills she developed there have been useful in producing The North Saskatchewan River Guide, 2002; the Heritage River Study, 2005; and the most recent publication, Living in the SHED, released December 2015.

  Gord Thompson, PEng.Technical Program Coordinator   gordon.thompson@nswa.ab.ca 587.525.6821

Gord joined the NSWA after a 35-year career in wastewater engineering and management with the City of Edmonton and the Alberta Capital Region Wastewater Commission. He brings a strong interest in the impacts of growth and development on the environment.



  Mary Ellen Shain, M.Sc. Watershed Planning & Management Coordinator Headwaters Region 

maryellen.shain@nswa.ab.ca 587.525.6828

Mary Ellen is a recent M.Sc. graduate from McGill’s Integrated Water Resource Management program (2013), where she focused on grass-roots collaborative decision making. She also completed undergraduate degrees in Ecology (2008) and Ethics (2009). Mary Ellen has previously worked for a river restoration organization, land stewardship council, Parks Canada and a consulting firm. She has experience with GIS, data management, policy analysis, and is interested in permaculture and low-impact development. With the NSWA, Mary Ellen is managing the new Headwaters Alliance and is involved with the lake management initiative.    

Mara Erickson, M.Sc. Extension & Stewardship Coordinator
- Vermilion River Subwatershed Region 

mara.erickson@nswa.ab.ca  587.525.6830 

Mara Erickson received her M.Sc. in Ecology from the University of Alberta, specializing in avian ecology. Since then, she has been heavily involved in species-at-risk and habitat conservation within a multi-stakeholder environment in Alberta’s prairie and parkland ecosystems. At NSWA, Mara’s focus is in the Vermilion sub-watershed, where she works with landowners to restore and enhance wetland ecosystems.


Ellen Cust, Finance Coordinator ellen.cust@nswa.ab.ca 587.525-6826


North Saskatchewan Watershed Alliance
202 9440 - 49 St.
Edmonton, AB T6B 2M9