pH (0-14)
What's this?
8.4
Blue anchor : St.Lawrence river
Cornwall, Ontario, Canada

Observed by
Sareena McDonald
- Observed on: Sat, 12 Jul 2025 00:22:27 +0000
- Lat: 45.0334694
- Lng: -74.6295353
Observation report
See trends at this locationWater quality tests
Pending Quality Check from Water Rangers What's this?
Dissolved oxygen mg/L
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7.0
Secchi depth m
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1.0
Chlorine ppm
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0.0
Hardness mg/L
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150.0
Alkalinity mg/L
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100.0
Water depth m
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1.0
Conductivity μS/cm
What's this?
29.9
Air temperature °C
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30.0
Water temperature °C
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23.2
Weather
Current weather What's this?
Weather in previous 24 hours What's this?
Latest photos
No photos uploaded.
Notes
Boating fishing