St. Lawrence River
Ontario, Canada
Site in middle of Greys Creek Marina Outlet
Location created by
Emma Ehrenfeld
- Group: River Rapport & Education : River Institute
- Lat: 45.0317388
- Lng: -74.6652746
- Waterbody Type: River
- Timezone: America/Toronto
Latest photos
No photos uploaded.
Observation tests summary
Air temperature
°C
20.0
Latest
24.7
Average
Water temperature
°C
22.2
Latest
21.8
Average
Alkalinity
mg/L
80
Latest
113
Average
Hardness
mg/L
100
Latest
144
Average
Dissolved oxygen
mg/L
11.0
Latest
9.6
Average
Conductivity
μS/cm
327
Latest
434
Average
Secchi depth
m
0.0
Latest
0.1
Average
pH (0-14)
7.5
Latest
7.4
Average
Water depth
m
1.3
Latest
1.3
Average