Lower Churchill River Hydroelectric Development

A hydroelectric project is proposed for the Lower Churchill River in Labrador. The increase in fish mercury levels is variable among reservoirs, e.g. 1.5X – 7X above background and there is a need to predict the increase expected for the Lower Churchill River project.

Reed Harris Environmental Ltd co-developed a simple model to predict peak mercury concentrations in fish in reservoirs, based on the flooded area, total reservoir area and mean annual flow (See below – Harris et al., 2008). The regression model was calibrated for northern pike and lake whitefish using historical observations from reservoirs in Quebec and Manitoba.

lower_churchill_river


References

Harris et al., 2008

Harris, R.C, D. Hutchinson and AMEC (2009) Lower Churchill Hydroelectric Generation Project. Environmental Baseline Report: Assessment of the Potential for Increased Mercury Concentrations. March 4, 2008