Add observation Report an issue
St.Lawrence River

St. Lawrence River

Ontario, Canada

Location created by
Harleen kaur
  • Lat: 45.0166441
  • Lng: -74.6997142
  • Waterbody Type: River
  • Timezone: America/Toronto

Latest photos

No photos uploaded.

Observation tests summary

Air temperature °C
What's this?
5.0 Latest
4.5 Average
Water temperature °C
What's this?
1.2 Latest
3.6 Average
Alkalinity mg/L
What's this?
80 Latest
80 Average
Hardness mg/L
What's this?
100 Latest
100 Average
Dissolved oxygen mg/L
What's this?
12.0 Latest
12.0 Average
Chlorine ppm
What's this?
0.0 Latest
0.0 Average
Conductivity μS/cm
What's this?
362 Latest
368 Average
Secchi depth m
What's this?
0.0 Latest
0.0 Average
Water depth m
What's this?
1.1 Latest
0.8 Average
pH (0-14)
What's this?
6.3 Latest
6.4 Average