![](https://cdn.waterrangers.ca/attachments/99ce9aac8e65cf02a8640df773fa0d37e9dc6959/store/fill/300/300/45cd2ae8e71a1635b93e924d9ac184b3cd4f0c950cd9c46f1f95edd25465/image_1783025830.jpg)
Big Rideau
Portland, Ontario, Canada
Mid channel off point of tar
![](https://cdn.waterrangers.ca/assets/default-150x150-cd282e9606eb9f82711bac32876e2d0e601ded2e263f562808e560a6eda4e0ea.jpg)
Location created by
Graham Strachan
- Group: Big Rideau Lake Association : Big Rideau Lake Water Quality
- Lat: 44.762741
- Lng: -76.2162125
- Waterbody Type: Channel
- Timezone: UTC
Latest photos
View all photosObservation tests summary
Air temperature
°C
22.0
Latest
21.4
Average
Water temperature
°C
18.0
Latest
21.2
Average
Alkalinity
mg/L
50
Latest
73
Average
Hardness
mg/L
50
Latest
74
Average
Dissolved oxygen
mg/L
7.0
Latest
9.0
Average
Chlorine
ppm
0.0
Latest
0.0
Average
Conductivity
μS/cm
198
Latest
195
Average
Water depth
m
27.4
Latest
66.5
Average
pH (0-14)
6.5
Latest
7.4
Average
Secchi depth
m
4.5
Latest
6.2
Average
Total Suspended Solids
mg/L
19.3
Latest
19.3
Average
Chloride
ppm
0.0
Latest
0.0
Average
Turbidity
NTU
19.3
Latest
19.3
Average
Turbidity
JTU
1
Latest
1
Average
Ice On
Ice Off
- 2022-09-25
- 2022-08-27
- 2022-08-01