Mouth of Grasse River

Grasse River

Massena, New York, United States

The middle of the mouth of Grasse River, murky, deep water near the southwest shore of Cornwall Island.
Near the lochs and pollys gut - very fast moving water! Be careful!

Location created by
Emma Ehrenfeld

Latest photos

No photos uploaded.

Observation tests summary

Air temperature °C
27.5 Latest
24.0 Average
Water temperature °C
23.4 Latest
21.5 Average
Alkalinity mg/L
60 Latest
70 Average
Hardness mg/L
0 Latest
0 Average
Dissolved oxygen mg/L
5.5 Latest
6.0 Average
Conductivity μS/cm
104 Latest
128 Average
Secchi depth m
4.0 Latest
2.7 Average
Water depth m
6.5 Latest
5.8 Average
pH (0-14)
7.0 Latest
7.1 Average