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 high but unable to take a reading.
Lab water samples collected for analysis at Bureau Veritas
6PPD-Q samples collected for UBC to analyze
Turbidity >1
Flow 6l/1.8 5/1.9 6/1.4
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.