Len's Cove Marina, Portland, on the Big Rideau

Big Rideau Lake

Portland, Ontario, Canada

Location created by
Martin Lalumière

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Observation tests summary

Total kjeldahl nitrogen μS/cm
950 Latest
414 Average
Total phosphorus μS/cm
0.1 Latest
17.2 Average
Water temperature °C
22.4 Latest
21.4 Average
Air temperature °C
29.0 Latest
25.0 Average
Dissolved oxygen mg/L
8.0 Latest
8.7 Average
pH (0-14)
8.0 Latest
8.5 Average
E.coli cfu per 100mL
14 Latest
28 Average
Conductivity μS/cm
201 Latest
227 Average
Dissolved oxygen %
6.0 Latest
52.5 Average
Alkalinity mg/L
80 Latest
105 Average
Hardness mg/L
80 Latest
100 Average
Secchi depth m
1.6 Latest
1.3 Average
Water depth m
1.6 Latest
5.3 Average
Chlorine ppm
0.0 Latest
0.1 Average

Ice On

Ice Off

  • 2022-09-03
  • 2022-07-30
  • 2022-06-24
  • 2022-05-30