St. Lawrence
Cornwall, Ontario, Canada
Location created by
Mark Bellis
- Group: River Institute : Upper St. Lawrence River Volunteer Monitoring
- Lat: 45.0546676
- Lng: -74.5693305
- Waterbody Type: Unknown
- Timezone: America/Toronto
Latest photos
No photos uploaded.
Observations summary
Observation tests summary
Air temperature
°C
25.0
Latest
25.8
Average
Water temperature
°C
23.6
Latest
24.2
Average
Alkalinity
mg/L
40
Latest
60
Average
Hardness
mg/L
100
Latest
156
Average
Dissolved oxygen
mg/L
12.0
Latest
11.8
Average
Conductivity
μS/cm
288
Latest
292
Average
Secchi depth
m
0.0
Latest
0.0
Average
Water depth
m
0.6
Latest
0.6
Average
Turbidity
JTU
0
Latest
0
Average
pH (0-14)
8.4
Latest
7.9
Average