St Lawrence river
Ontario, Canada
River
Location created by
Grayson Lapensee
- Lat: 45.0351209
- Lng: -74.6437419
- Waterbody Type: River
- Timezone: UTC
Latest photos
No photos uploaded.
Observations summary
Observation tests summary
Air temperature
°C
16.0
Latest
22.0
Average
Water temperature
°C
14.5
Latest
21.0
Average
Alkalinity
mg/L
80
Latest
87
Average
Hardness
mg/L
100
Latest
58
Average
Dissolved oxygen
mg/L
10.0
Latest
9.1
Average
Conductivity
μS/cm
308
Latest
312
Average
Water depth
m
1.0
Latest
0.4
Average
pH (0-14)
7.2
Latest
7.4
Average
Chlorine
ppm
0.5
Latest
0.3
Average
Secchi depth
m
0.0
Latest
0.0
Average