St. Lawrence River
Cornwall, Ontario, Canada
Where the boats exit the marina to enter the river.
Location created by
James Hardiment
- Lat: 45.0324967
- Lng: -74.6652589
- Waterbody Type: River
- Timezone: UTC
Latest photos
Observations summary
Observation tests summary
Air temperature
°C
28.0
Latest
28.0
Average
Water temperature
°C
25.9
Latest
25.9
Average
Alkalinity
mg/L
80
Latest
80
Average
Hardness
mg/L
150
Latest
150
Average
Dissolved oxygen
mg/L
7.0
Latest
7.0
Average
Chlorine
ppm
0.0
Latest
0.0
Average
Conductivity
μS/cm
446
Latest
446
Average
Secchi depth
m
0.3
Latest
0.3
Average
Water depth
m
0.3
Latest
0.3
Average
pH (0-14)
8.4
Latest
8.4
Average