St. Lawrence River
Ontario, Canada
Location created by
Harleen kaur
- Lat: 45.0166441
- Lng: -74.6997142
- Waterbody Type: River
- Timezone: America/Toronto
Latest photos
No photos uploaded.
Observation tests summary
Air temperature
°C
25.0
Latest
11.3
Average
Water temperature
°C
24.0
Latest
10.4
Average
Alkalinity
mg/L
80
Latest
80
Average
Hardness
mg/L
150
Latest
117
Average
Dissolved oxygen
mg/L
8.0
Latest
10.7
Average
Chlorine
ppm
0.0
Latest
0.0
Average
Conductivity
μS/cm
3
Latest
246
Average
Secchi depth
m
0.0
Latest
0.0
Average
Water depth
m
0.1
Latest
0.5
Average
pH (0-14)
7.8
Latest
6.8
Average