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St Lawrence

St Lawrence River

Cornwall, Ontario, Canada

Near River Institute

Location created by
Mark Bellis
  • Lat: 45.0162273
  • Lng: -74.6961093
  • Waterbody Type: Unknown
  • Timezone: America/Toronto

Latest photos

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Observation tests summary

Air temperature °C
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26.0 Latest
26.0 Average
Water temperature °C
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24.0 Latest
24.0 Average
Alkalinity mg/L
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120 Latest
120 Average
Hardness mg/L
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100 Latest
100 Average
Dissolved oxygen mg/L
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10.0 Latest
10.0 Average
Chlorine ppm
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0.0 Latest
0.0 Average
Conductivity μS/cm
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303 Latest
303 Average
Secchi depth m
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0.0 Latest
0.0 Average
Water depth m
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0.2 Latest
0.2 Average
pH (0-14)
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7.8 Latest
7.8 Average