St. Lawrence River
Ontario, Canada
Location created by
Watersheds Canada
- Lat: 44.2319521
- Lng: -76.3249397
- Waterbody Type: Unknown
- Timezone: America/Toronto
Latest photos
No photos uploaded.
Observation tests summary
Air temperature
°C
25.0
Latest
25.0
Average
Water temperature
°C
17.0
Latest
17.0
Average
Alkalinity
mg/L
80
Latest
80
Average
Hardness
mg/L
200
Latest
200
Average
Dissolved oxygen
mg/L
6.0
Latest
6.0
Average
Chlorine
ppm
0.0
Latest
0.0
Average
Conductivity
μS/cm
291
Latest
291
Average
pH (0-14)
7.0
Latest
7.0
Average