![](https://cdn.waterrangers.ca/attachments/6a2fbe1cf2400faed110b15005372a102e26cca7/store/fill/300/300/0fa5a89ccb870ba600357e79ef7c6b7d013772b35af07e1bdb2064453957/09A0E32C-0909-4906-AF3D-18497FE0444B.jpg)
Lake Ontario
Ontario, Canada
![](https://cdn.waterrangers.ca/attachments/14611462c48a918c92f2922dcf2aa8cde25025bb/store/fill/150/150/0dd0a1bc4583530adf9e25dbae25911b021632b39a214a3fce8074fa3af9/122FB33C-239F-41D2-97F0-461A7A8598F3.jpg)
Location created by
Don Ross
- Group: County Sustainability Group
- Lat: 43.9348812
- Lng: -76.9893765
- Waterbody Type: Lake
- Timezone: America/Toronto
Latest photos
View all photosIssues Summary
Observations summary
Observation tests summary
Air temperature
°C
23.0
Latest
19.2
Average
Water temperature
°C
16.2
Latest
15.4
Average
Alkalinity
mg/L
60
Latest
96
Average
Hardness
mg/L
150
Latest
173
Average
Dissolved oxygen
mg/L
9.0
Latest
7.7
Average
Conductivity
μS/cm
262
Latest
289
Average
Secchi depth
m
0.0
Latest
0.0
Average
Water depth
m
0.1
Latest
0.2
Average
pH (0-14)
6.6
Latest
7.8
Average
Phosphates total
ppm
3.0
Latest
3.0
Average
Chlorine
ppm
0.3
Latest
0.3
Average
Ice On
- 2023-01-02
- 2021-12-30
- 2020-12-30
Ice Off
- 2024-02-17
- 2023-03-03
- 2022-03-10
- 2021-03-08
- 2020-03-22
- 2019-04-17
- 2018-03-31