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
27.0
Latest
25.3
Average
Water temperature
°C
24.0
Latest
21.7
Average
Alkalinity
mg/L
80
Latest
118
Average
Hardness
mg/L
100
Latest
150
Average
Dissolved oxygen
mg/L
12.0
Latest
9.4
Average
Conductivity
μS/cm
380
Latest
448
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