St Lawrence River
Ontario, Canada
Location created by
Sarah Greenwood
- Group: River Institute : Community-based Water Monitoring
- Lat: 45.016
- Lng: -74.7014
- Waterbody Type: River
- Timezone: America/Toronto
Latest photos
Observations summary
Observation tests summary
Air temperature
°C
17.0
Latest
18.4
Average
Water temperature
°C
19.2
Latest
17.8
Average
Alkalinity
mg/L
170
Latest
130
Average
Hardness
mg/L
130
Latest
165
Average
pH (0-14)
6.9
Latest
8.1
Average
Chlorine
ppm
0.0
Latest
0.5
Average
Conductivity
μS/cm
314
Latest
122
Average
Dissolved oxygen
mg/L
10.0
Latest
4.9
Average
Water depth
m
0.0
Latest
0.6
Average
Secchi depth
m
0.0
Latest
0.0
Average