Cow Island

Big Rideau Lake

Portland, Ontario, Canada

Location created by
Gayle Mathe

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Observation tests summary

Air temperature °C
32.0 Latest
25.1 Average
Water temperature °C
24.6 Latest
22.6 Average
Alkalinity mg/L
60 Latest
106 Average
Hardness mg/L
0 Latest
50 Average
Conductivity μS/cm
178 Latest
206 Average
Secchi depth m
2.9 Latest
2.6 Average
Dissolved oxygen %
9.0 Latest
9.0 Average
pH (0-14)
8.0 Latest
7.7 Average
Water depth m
2.7 Latest
3.1 Average
Dissolved oxygen mg/L
8.0 Latest
7.3 Average
Total dissolved solids ppm
102.0 Latest
102.0 Average
Chlorine ppm
0.0 Latest
0.2 Average
Turbidity JTU
107 Latest
107 Average