Marina de Longueuil

Saint Lawrence

Montreal, Quebec, Canada

Sample from the ferry dock directly in the river and outside of the marina. If the dock is not in place then sample from the edge of the rocks. The water is moving quite fast.

Location created by
Chris Thompson
  • Lat: 45.5401222
  • Lng: -73.5176233
  • Waterbody Type: River
  • Timezone: America/Toronto

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Observation tests summary

Alkalinity (mg/L)
100 Latest
83 Average
Chlorine (ppm)
0.0 Latest
0.0 Average
Conductivity (uS/cm)
279 Latest
288 Average
Water temperature ℃
23.2 Latest
15.8 Average
Hardness (mg/L)
50 Latest
83 Average
pH (0-14)
7.8 Latest
7.6 Average
Air temperature ℃
26.0 Latest
18.8 Average
Secchi depth (m)
0.0 Latest
0.1 Average
Water Depth (m)
0.4 Latest
0.7 Average
Dissolved oxygen (mg/L)
6.0 Latest
6.8 Average