St. Lawrence River
New York, United States
Downstream of the mouth of Grasse River, it is murky brown water and moving.
Location created by
Emma Ehrenfeld
- Group: River Rapport & Education : River Institute
- Lat: 44.9872328
- Lng: -74.7641301
- Waterbody Type: River
- Timezone: America/New_York
Latest photos
Observations summary
Observation tests summary
Air temperature
°C
20.5
Latest
20.5
Average
Water temperature
°C
19.0
Latest
19.0
Average
Alkalinity
mg/L
120
Latest
120
Average
Hardness
mg/L
100
Latest
100
Average
Dissolved oxygen
mg/L
6.0
Latest
6.0
Average
Conductivity
μS/cm
264
Latest
264
Average
Secchi depth
m
2.1
Latest
2.1
Average
Water depth
m
6.1
Latest
6.1
Average
pH (0-14)
7.2
Latest
7.2
Average