Erosion is where soil and sediment is worn away by wind, rain or even glaciers. In watersheds, steep banks combined with severe weather can result in landslides or creeks and rivers banks flooding. Tiny particles in our water supply add to the challenge of cleaning our water.
To minimize this risk, Metro Vancouver practices; deactivation of old roads, slope stabilization, strengthening creek beds and re-vegetating areas that have been disturbed.
Water Monitoring & Forecasting
There are monitoring stations throughout the watersheds to help predict the impact of weather patterns on water quality. For example, in-stream data collection can signal when erosion in a tributary (side stream) may reach the reservoir.
Long-term data on precipitation and snowpack is also is useful for examining trends affecting water supply in our region including the impacts of climate change.
Maintaining Ecosystem Health
These huge areas of forested land and protected wildlife habitat are valuable natural assets to our region. The ecological health of our watersheds contributes significantly to the clean water, soil and air we enjoy in this part of the world.
Our watersheds are covered with old-growth and second growth stands of predominately Western redcedar, Douglas-fir, Sitka Spruce, and hemlock trees. They are also home to wildlife such as the Douglas squirrel, barred owl, black tailed deer and black bear.
Fish are present in all of the rivers flowing from our watersheds. While our first priority is to provide clean, safe drinking water, healthy fish habitat and populations play a key role in a balanced ecosystem. Metro Vancouver works on initiatives to restore habitat, and replenish fish stocks in the watersheds including protecting and creating healthy habitat to live, rear and spawn, maintaining minimum populations, and providing safe passage past the dams. Salmon are a special consideration not only for ecosystem health but also for their cultural significance.
When natural disturbances such as plant disease, fire or wind damage occurs, Metro Vancouver takes a minimal intervention approach. Unless there is a risk to public safety or water quality, these natural processes are allowed to take place.
Another key part of maintaining a sustainable and resilient water supply, is to provide opportunities for citizen engagement.
public programs offer learning tools and guided field experiences to help people connect these places to their daily lives. Education initiatives create trust and confidence in our public water supply and allow for opportunities to share ideas; part of Metro Vancouver’s approach to promoting the sustainable use of water.
The Lower Seymour Conservation Reserve (LSCR) is located below the dam in the Seymour Watershed. It is an area of land that does not drain directly into the reservoir and is therefore open to the public. While this land is on reserve as a future storage site for water, visitors can explore the area through a number of recreational and educational opportunities.
Metro Vancouver provides recent and
current river levels and flows of the Capilano and Seymour Capilano Rivers. This information may be of interest for recreation purposes.