Trillium Creek Watershed Summary

Summary

Trillium Creek Watershed
Total Drainage Area: km2
Length: 753 m
Orientation: Northwest - SEElevation Range: 90 to 130 m
Average Channel Gradient: Ranges from 1% to >10%Average Channel width: 1.5 m

Characteristics

Trillium Creek is a tributary of McCartney Creek in Blueridge
The headwaters of Trillium appear to be culverted so that the first visible sign of the creek is as it flows out of a culvert under the path between Medwyn and Dunrobin. Trillium flows south between Emerson Court and Medwin Place and Walpole Crescent through a relatively natural forested area. South of Emerson Place, Trillium enters a deep forested ravine and flows southeast to join McCartney
The Trillium Creek Watershed is bordered by the Blueridge Creek Watershed to the west and the McCartney Creek Watershed to the east
The Trillium Creek Watershed is about 13% impervious surface (GVRD, 1999)

Watershed Use

Fish: Cutthroat

Wildlife: besides providing habitat for various species of reptiles, amphibians, birds and mammals, the riparian corridor serves as a travel corridor.

Vegetation: Coastal Western Hemlock, dry subzone.

Parks: McCartney Creek Park, Trillium Park

Residential: the area surrounding Trillium Creek is primarily residential

Schools: Seymour Heights Elementary, Blueridge Elementary

Concerns

5 storm drains flow into Trillium
Trillium is culverted in its upper reaches and possibly in its headwaters
High level of suspended sediments noted in the water during preliminary watershed assessment in spring, 2001 (NSSK, 2001)

Watershed Projects and Good News

Most of Trillium Creek has good to excellent riparian cover

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