Upper Decew Falls : Twelve Mile Creek

Thorold, Ontario, Canada

Observed by
Myles Calvert

Observation report

See trends at this location

Water quality tests

Pending Quality Check from Water Rangers What's this?

pH (0-14) What's this? 7.8
Secchi depth m What's this? bottom visible
Chloride ppm What's this? 47.0
Chlorine ppm What's this? 0.0
Hardness mg/L What's this? 150.0
Alkalinity mg/L What's this? 120.0
Conductivity μS/cm What's this? 370.0
Air temperature °C What's this? 19.0
Water temperature °C What's this? 16.8
Ice off What's this?

Since: 2025-04-28

Qualitative

Algae What's this? Yes
Odour What's this? None
Clarity What's this? Clear
Algae Type What's this? Not sure
Water Flow What's this? Steady
Water Level What's this? Low
Water Colour What's this? Clear
On the water surface What's this? None

Weather

Current weather What's this?
19 degrees. Gorgeous.
Weather in previous 24 hours What's this?

Latest photos

Notes

I'm not sure what classification of growth that green stuff is (on the bottom, not surface), but I do not think I'v noticed it in any previous tests.