St. Lawrence River
Ontario, Canada
Location created by
Duncan Campbell Campbell
- Group: River Rapport & Education : River Institute
- Site ID: LSL-13
- Lat: 44.8969159
- Lng: -75.1736069
- Waterbody Type: River
- Timezone: America/Toronto
Latest photos
No photos uploaded.
Observation tests summary
Air temperature
°C
21.0
Latest
21.1
Average
Water temperature
°C
17.0
Latest
21.0
Average
Alkalinity
mg/L
145
Latest
102
Average
Hardness
mg/L
190
Latest
143
Average
Dissolved oxygen
mg/L
7.0
Latest
7.7
Average
Chlorine
ppm
0.0
Latest
0.0
Average
Conductivity
μS/cm
510
Latest
373
Average
Secchi depth
m
0.0
Latest
0.0
Average
Water depth
m
4.0
Latest
4.0
Average
pH (0-14)
7.6
Latest
7.5
Average