Stormwater pipe discharge and Mission Ck - MIS-W-01 Medium Priority
North Vancouver, British Columbia, Canada
location of MIS-W-01 using zoom on web app. South side of 23rd St. Two large storm drains emerge side by side with a smaller one of 0.2m inside diameter in between (do not monitor the small one). This is the western one which is 1.05m in diameter of concrete. Moderate energy location combining Mission Creek with storm drains from Highway #1. Field measured GPS coordinates in NAD83 are -123.0863967, 49.33019138 in Long and Lat, or UTM 495,730E, 5,464,169N Old Salt project site is the flow from W-01 and W-02 combined
Location created by
Paul Lhotka
- Site ID: MIS-W-01
- Lat: 49.3301285
- Lng: -123.0862498
- Waterbody Type: Unknown
- Timezone: America/Vancouver
Latest photos
Turbidity <14
Turbidity <14
Ysi simultaneous reading
Simultaneous measurements done with YSI.
Turbid less than 14
Water flow:
2.53 sec and 10L approx 90% capture
1.78 sec and 7.5L
Slight odour of phosphorus/sewage
Flow 20l@2.69 sec
Flow 20l@ 3.12sec
Turbidity <14 NTU
Sample taken directly in front outflow pipe in pool in error - water measurements recorded here for comparison, but deleted from data fields:
conductivity: 168
water temps: 19
pH: 7.4
Alk: 40
Hardness: 0
Turbidity <14
Wetted width 29cm
Wetted depth 20mm
Pipe inclination 2deg
YSI used simultaneously
Measurements taken from sampling cup; attempted to measure conductivity by holding meter in the stormpipe flow and then at holding it in pool where the flow contacted the pool, but in both cases, the value kept changing due to micro movements of the meter (I was unable to hold it completely still).
Turbidity not measured in secchi tube, but water column completely clear.
Additional personnel: Kat, Nathan, Lauren.
Flow is approximately 80% of MIS-E-01 observation (>20L/ 2.3 seconds) taken same day.