St Lawrence River
Ontario, Canada
Location created by
Sarah Greenwood
- Group: River Institute : Upper St. Lawrence River Volunteer Monitoring
- Lat: 45.016
- Lng: -74.7014
- Waterbody Type: River
- Timezone: America/Toronto
Latest photos
Observations summary
Observation tests summary
Air temperature
°C
24.5
Latest
18.6
Average
Water temperature
°C
23.6
Latest
17.9
Average
Alkalinity
mg/L
80
Latest
128
Average
Hardness
mg/L
120
Latest
163
Average
pH (0-14)
7.9
Latest
8.1
Average
Chlorine
ppm
0.0
Latest
0.4
Average
Conductivity
μS/cm
304
Latest
184
Average
Dissolved oxygen
mg/L
11.0
Latest
7.3
Average
Water depth
m
0.1
Latest
0.4
Average
Secchi depth
m
0.0
Latest
0.0
Average