Grand River
Grand Rapids, Michigan, United States
Location created by
David Fitch
- Lat: 42.9668455
- Lng: -85.6761
- Waterbody Type: River
- Timezone: America/Detroit
Latest photos
View all photosObservation tests summary
Air temperature
°C
13.0
Latest
9.1
Average
Water temperature
°C
11.5
Latest
10.0
Average
Alkalinity
mg/L
240
Latest
173
Average
Hardness
mg/L
400
Latest
250
Average
Dissolved oxygen
mg/L
11.0
Latest
10.8
Average
Conductivity
μS/cm
634
Latest
621
Average
Water depth
m
0.2
Latest
0.3
Average
pH (0-14)
7.8
Latest
7.7
Average
Chlorine
ppm
0.0
Latest
0.0
Average
Ice On
Ice Off
- 2022-10-14
- 2022-07-07