Add observation Report an issue
McDonald Island off the docks

St. Lawrence River

Gananoque, Ontario, Canada

Location created by
Rideau Roundtable
  • Lat: 44.3117888
  • Lng: -76.1733198
  • Waterbody Type: River
  • Timezone: America/Toronto

Latest photos

No photos uploaded.

Observation tests summary

Air temperature °C
What's this?
23.0 Latest
23.0 Average
Water temperature °C
What's this?
25.0 Latest
25.0 Average
Alkalinity mg/L
What's this?
240 Latest
240 Average
Hardness mg/L
What's this?
200 Latest
200 Average
Dissolved oxygen mg/L
What's this?
9.0 Latest
9.0 Average
Chlorine ppm
What's this?
0.0 Latest
0.0 Average
Conductivity μS/cm
What's this?
289 Latest
289 Average
pH (0-14)
What's this?
7.5 Latest
7.5 Average