St. Lawrence River
Cornwall, Ontario, Canada
At bottom of stairs/dock from shore.
Location created by
Katherine Tieman
- Group: River Institute : Upper St. Lawrence River Volunteer Monitoring
- Lat: 45.0164665
- Lng: -74.6994781
- Waterbody Type: River
- Timezone: America/Toronto
Latest photos
No photos uploaded.
Observations summary
Observation tests summary
Air temperature
°C
23.5
Latest
21.3
Average
Water temperature
°C
24.7
Latest
21.8
Average
Alkalinity
mg/L
100
Latest
119
Average
Hardness
mg/L
130
Latest
117
Average
Chlorine
ppm
0.0
Latest
0.0
Average
Conductivity
μS/cm
430
Latest
337
Average
Secchi depth
m
0.0
Latest
0.0
Average
Water depth
m
0.2
Latest
0.1
Average
pH (0-14)
7.8
Latest
7.4
Average
Dissolved oxygen
mg/L
8.0
Latest
8.8
Average