Cormorant Island

Big Rideau Lake

Portland, Ontario, Canada

Location created by
Gayle Mathe
  • Site ID: Cormorant Island BRLA
  • Lat: 44.727
  • Lng: -76.2298
  • Waterbody Type: Lake
  • Timezone: America/Toronto

Latest photos

View all photos

Observation tests summary

Alkalinity (mg/L)
100 Latest
100 Average
Water Depth (m)
15.0 Latest
3.5 Average
Conductivity (uS/cm)
190 Latest
205 Average
Water temperature ℃
18.0 Latest
22.4 Average
Hardness (mg/L)
150 Latest
78 Average
Dissolved oxygen (mg/L)
9.0 Latest
7.5 Average
pH (0-14)
7.6 Latest
7.6 Average
Air temperature ℃
21.0 Latest
23.8 Average
Secchi depth (m)
5.5 Latest
1.1 Average
Total Dissolved Solids (ppm)
105.0 Latest
103.5 Average
Turbidity (JTU)
104 Latest
105 Average
Chlorine (ppm)
0.0 Latest
0.5 Average
Turbidity (NTU)
105.0 Latest
105.0 Average