St. Lawrence River
Ontario, Canada
Location created by
Mohawk Council of Akwesasne (MCA)
- Group: River Rapport & Education : River Institute
- Lat: 45.004892
- Lng: -74.757843
- Waterbody Type: River
- Timezone: America/Toronto
Latest photos
Observations summary
Observation tests summary
Air temperature
°C
23.5
Latest
21.8
Average
Water temperature
°C
22.8
Latest
22.5
Average
Alkalinity
mg/L
80
Latest
100
Average
Hardness
mg/L
100
Latest
100
Average
Dissolved oxygen
mg/L
8.0
Latest
8.0
Average
Chlorine
ppm
0.0
Latest
0.0
Average
Conductivity
μS/cm
307
Latest
298
Average
Secchi depth
m
0.0
Latest
0.0
Average
Water depth
m
4.0
Latest
2.7
Average
pH (0-14)
7.5
Latest
7.7
Average