Stormwater pipe discharge
North Vancouver, British Columbia, Canada
corrected location of WAG-E-03 using zoom on web app. This is where a concrete storm pipe of 0.9m inside diameter surfaces and joins with Wagg Creek just downstream of a pedestrian bridge over the creek on the east side. A large plunge pool with large boulders forms a deep pool due to high energy discharge during storm. Field measured GPS coordinates in NAD83 are -123.0871740, 49.32245002 in Long and Lat, or UTM 493,665E, 5,463,306N
Location created by
Paul Lhotka
- Group: North Shore Streamkeepers Society : Wagg Creek Water Quality Monitoring Group
- Site ID: WAG-E-03
- Lat: 49.3223528
- Lng: -123.0872369
- Waterbody Type: Unknown
- Timezone: America/Vancouver
Latest photos
Turbidity <14, foam to 30cm thick, but no covering the whole surface of plunge pool like July 29, 2024. Smell of hydrocarbons.
Turbidity <14
Turbidity <14
6PPD-Q water sample collected
Bubbles causing trouble measuring dissolved oxygen with YSI
YSI data collection
6Ppd data collection
Turbidity less than 14
Water flow:
1.72 sec and 9L
2.13 sec and 8L
2.03 sec and 8L
Surging water flow.
Slight smell of oil/gas.
Water looks murkier/more turbid than Sean’s photo @830.
< 14NTU. Water has a greenish cast, but Secchi disk is still clearly visible. measurements taken with YSI. Strong gray water smell consistently.
Wetted width 15 to 20 cm
Wetted depth ~ 15 mm
pipe incline 8°
Bucket/stopwatch measurement for flow:
1st attempt: 5 L at 1.18 seconds =4.24 L/second
2nd attempt:: 6L at 1.7 seconds = 3.53 L/second
3rd attempt: 7L 1.7 seconds (flow is surging) = 4.18 L/second
Average = 3.98 L/second
you stopwatch and bucket method to test flow. 8 L in two seconds.
Gray water smell, and faint smell of soap.
turbidity <14. Abundant foam in plunge pool. Estimated flow well over 50l/sec
spill reported at 11 am, white substance, but no trace now. chemical smell around plunge pool typical of this location. water temps taken from conductivity meter. cloudy water in pool but not significantly turbid. pipe has relatively low flow.