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
24.5
Latest
26.0
Average
Water temperature
°C
21.7
Latest
21.5
Average
Alkalinity
mg/L
120
Latest
150
Average
Hardness
mg/L
100
Latest
150
Average
Dissolved oxygen
mg/L
9.0
Latest
9.0
Average
Conductivity
μS/cm
669
Latest
624
Average
Secchi depth
m
0.5
Latest
0.5
Average
pH (0-14)
7.2
Latest
7.5
Average
Water depth
m
1.3
Latest
1.3
Average