![](https://cdn.waterrangers.ca/attachments/dc0e4fbb05ef91ac4cce066ce47437f7f444a2b2/store/fill/300/300/d37671fbe73ea5b0e9860047fc85fdb4259c9b76727c8591dbf0126da94f/image.jpg)
Big Rideau Lake
Portland, Ontario, Canada
Near Portland dump
![](https://cdn.waterrangers.ca/attachments/abc97dc93d563304ba86462f36edc7508a29e235/store/fill/150/150/2a69476a26315ed1e54dea9a44b745befb28120962fb3061453fbd693d2f/IMG_6822.jpg)
Location created by
Doris Albert
- Group: Big Rideau Lake Association : Big Rideau Lake Water Quality
- Site ID: BRLA-Little lake -2
- Lat: 44.7195563
- Lng: -76.1772674
- Waterbody Type: Lake
- Timezone: America/Toronto
Latest photos
View all photosObservations summary
Observation tests summary
Air temperature
°C
19.0
Latest
22.3
Average
Water temperature
°C
20.0
Latest
22.4
Average
Alkalinity
mg/L
60
Latest
91
Average
Hardness
mg/L
100
Latest
66
Average
Dissolved oxygen
mg/L
7.0
Latest
9.9
Average
Conductivity
μS/cm
247
Latest
204
Average
Water depth
m
0.8
Latest
1.1
Average
pH (0-14)
6.4
Latest
7.7
Average
Secchi depth
m
0.7
Latest
0.1
Average
Chlorine
ppm
0.0
Latest
0.2
Average
Ice On
Ice Off
- 2022-08-21
- 2022-06-20