St. Lawrence River
Ontario, Canada
Location created by
River Institute
- Lat: 45.0249597
- Lng: -74.9348747
- Waterbody Type: River
- Timezone: America/Toronto
Latest photos
No photos uploaded.
Observation tests summary
Water temperature
°C
24.6
Latest
24.6
Average
Alkalinity
mg/L
180
Latest
180
Average
Hardness
mg/L
250
Latest
250
Average
Dissolved oxygen
mg/L
6.0
Latest
6.0
Average
Conductivity
μS/cm
546
Latest
546
Average
pH (0-14)
7.2
Latest
7.2
Average