20th Street Outfall

Wagg Creek

North Vancouver, British Columbia, Canada

Large diameter corrugated metal storm pipe continually discharging a large volume of water into a pool created by rip rap.

The catchment for this pipe possibly extends above Hwy 1 to the east branch (Tempe Heights) of Wagg Creek; then southward bordered on east by Greenwood Park; down to E. 20th, including London Drugs and one block of Lonsdale. A large impervious catchment, noted as pipes over capacity in 2020 CNV/DNV ISMP.

Location created by
Carolynne Robertson

Latest photos

View all photos

Turbid water. Gray foam on water. Slight smell of sewage.

23 Mar 10:40 by Carolynne Robertson

Water is gray, high turbidity. Visibility is about half a metre foam accumulating. Suspended sediments. Slight smell of soap. BC metre has water temp reading of 8.6°C TDS 250 ppm.

20 Feb 10:19 by Carolynne Robertson

Good volume of water. Slightly cloudy water column.

28 Dec 16:21 by Carolynne Robertson

For comparison, measurement also taken in mainstem. Conducivity: 538, TDS: 267/
At the time the sample was taken, it had just started to rain in the past hour after approx 2 days of no rain.
High turbidity; water appeared gray/black; visibility <1 cm

09 Dec 11:00 by Carolynne Robertson

water relatively clear, .75m visibility. currently only a light drizzle but water still discharging forcefully, splashing about .5 m height when it hits riprap

06 Dec 11:25 by Carolynne Robertson

Water is murky with brownish green cast, very turbid

10 Aug 19:15 by Carolynne Robertson

Water is coming out of the pipe but less water than usual. Water is murky, smells like metal or chemicals.
Saw water strider bugs.

28 Jul 13:52 by Carolynne Robertson

Water flowing from pipe smelled chemical/metallic, strong brown discolouration.

14 Jun 16:15 by Carolynne Robertson

Strong chemical/metal smell. water flowing from pipe with great velocity

29 May 10:45 by Carolynne Robertson