Mosquito Creek Watershed
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Watershed Profile
Watershed Profile
Watershed Issues
Stream Channel
Water Condition
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Hydrology Risk of loss of quantity and increased peak flows from increased development and densification.
Stream Channel Has been significantly altered by flood control engineering works above the Trans Canada Highway, and below.
Water Quality Has been compromised by stormwater discharged from residential, commercial and industrial developed areas, bank erosion.
Wagg Creek and Lower Mission Creek have serious non-point source pollution and water quality problems.
There may be some water quality and quantity impact from snow-making and resort activities from the Grouse Mountain Ski Resort.
Fish and Wildlife Habitat Many attributes have been eliminated by development.
Lack of refugia, for fish and aquatic animals, is a major problem in the creek.
No fish access u/s of Queens culvert.
Estuary Most of the estuary has been lost.
Intensive Development Development and proposed redevelopment in the watershed increases the risk of further water quality and quantity impact from storm water, spills, encroachment, loss of riparian area, unauthorized stream works, recreational/conservation trail use conflicts and bank/channel alterations.(DFO-1998)


Storm Water A comprehensive Stormwater Management Plan is required for the watershed which addresses water quality and quantity as well as baseflow maintenance.
Fish and Wildlife Habitat Protect and replant remaining riparian habitat.
Develop additional off-channel habitat to help protect fish from extreme flows.
Re-establish fish access to Upper Mission and Thain. Improve instream habitat.
Protection Incorporate restoration and protection during redevelopment for this watershed.
Should increase setbacks from top of bank, reduce the development footprint, and restrict access to the watercourse.
Protection Bylaws The District of North Vancouver should be encouraged to maintain and possibly expand its comprehensive Environmental Protection and Preservation Bylaw, which protects, preserves, and conserves natural settings and ecological systems, trees, watercourses, soils, and lands.
The City of North Vancouver should be encouraged to maintain its Environment Protection Bylaws and develop provisions that would give a consistent level of protection throughout the watershed.
Stewardship Activities beyond those already underway need to focus on improving public awareness, protecting and enhancing riparian habitat, improving water quality and preventing unauthorized discharges, carrying out storm drain marking, signage, and advocacy.