St. Lawrence River
Ontario, Canada
behind Cornwall Civic Complex
Location created by
Jaden Kay
- Lat: 45.0132635
- Lng: -74.7241015
- Waterbody Type: River
- Timezone: UTC
Latest photos
Observations summary
Observation tests summary
Air temperature
°C
7.0
Latest
7.0
Average
Water temperature
°C
13.2
Latest
13.2
Average
Alkalinity
mg/L
65
Latest
65
Average
Hardness
mg/L
100
Latest
100
Average
Dissolved oxygen
mg/L
10.0
Latest
10.0
Average
Chlorine
ppm
0.0
Latest
0.0
Average
Conductivity
μS/cm
322
Latest
322
Average
Water depth
m
0.3
Latest
0.3
Average
pH (0-14)
7.8
Latest
7.8
Average