
St.Lawrence River
Ontario, Canada

Location created by
Julia McDiarmid
- Group: River Institute : Community-based Water Monitoring
- Lat: 45.0168
- Lng: -74.6998999
- Waterbody Type: River
- Timezone: America/Toronto
Latest photos
View all photosObservations summary
Observation tests summary
Air temperature
°C
25.0
Latest
19.1
Average
Water temperature
°C
24.0
Latest
18.2
Average
Alkalinity
mg/L
80
Latest
128
Average
Hardness
mg/L
150
Latest
180
Average
pH (0-14)
7.8
Latest
8.1
Average
Chlorine
ppm
0.0
Latest
0.5
Average
Secchi depth
m
0.0
Latest
0.3
Average
Water depth
m
0.1
Latest
0.5
Average
Conductivity
μS/cm
3
Latest
218
Average
Dissolved oxygen
mg/L
8.0
Latest
8.9
Average