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Mainstream Biological Consulting


A Campbell River-based environmental consulting company with experience working on local BC Hydro projects and complex industrial construction projects across Vancouver Island. The Mainstream Biological team provides a range of services including biological and environmental assessments, environmental management and monitoring for regulatory compliance.

What you may not know about us:

Mainstream is owned and operated by Monica and Lance Stewardson, who both grew up in Campbell River. Monica started the business in the family’s den in 2000 and Lance left his previous career as a teacher to help it grow.

Project role:

Mainstream Biological will serve as the independent environmental monitor responsible for overseeing the environmental management plan and ensuring construction activities comply with that plan, permits and other environmental legislation and regulation.

People working:

Four people on Mainstream’s staff will be engaged in the part-time contract for the John Hart Generating Station Replacement Project: Monica will act as the lead helping to coordinate a second Registered Professional Biologist (RPBio) and two First Nations environmental monitors.

What makes Campbell River a great place to live and work:

For Monica and Lance, it’s a great place because it’s where they’re from. With the ocean, lakes and rivers nearby, they say they can be lost in nature quickly – which they love. As a hub for the North Island, it’s also a great location for their business, which provides service to a market previously not provided for by a local business.


“Having grown up here in town, the John Hart facility has been a landmark facility – for us, it’s exciting to be involved in the construction of a new facility that will be the landmark for the next 60 years.”