Yukon Energy Corporation

Marsh Lake, Gladstone & Atlin Lake Hydroelectric Assessment

Recognized leadership in fisheries risk assessment for increased confidence in hydroelectric permitting strategy

Yukon’s energy demands are soon to exceed its clean energy supply. Yukon Energy Corporation (YEC) is investigating a number of options for increasing energy supply in a way that is affordable, reliable, flexible and environmentally responsible. One of the primary options is to raise the water level in Marsh Lake, an existing reservoir on the Yukon River just upstream of Whitehorse, by about 30 cm. A second option is to divert water from Gladstone Lake into the Aishihik Lake and Canyon Lake systems, within the Ruby Range about 175 km northwest of Whitehorse. A third option is to retain water in Atlin Lake for release in the winter, thereby increasing winter generation at the Whitehorse hydroelectric facility.

Palmer Environmental Consulting Group Inc. (PECG) was retained by AECOM to provide senior-level guidance to the aquatic baseline programs of each of these three projects in the areas of lake trout spawning assessments, wetland assessments, instream flow analysis and fishway design. Many of PECG’s staff members also had prior experience leading field programs and authoring aquatic baseline reports for these projects, thus providing well rounded experience as senior support. PECG has been involved at a senior level with regulatory engagement and preliminary impact assessment for the Project Proposal to the Yukon Environment and Socio-economic Assessment Board (YESAB).