Loon Lake

Testing of home made Nephelometer using Arduino platform and Keystudio turbidity sensor complete with digital/analog amplifier gave a voltage output of 4.15vdc that equated to an NTU OF 156. Based on a linear relationship between voltage and NTU. Since the NTU is excessive, a manufacture’s quadratic equation will be evaluated. Should have 4.2v producing 0 NTU.

Ammonia/Ammonium 0.25 ppm; Hydrogen Sulphide 0.0 ppm
This is the final water sampling/testing until ice out 2022.

H2S = 0 ppm using low range lead acetate test strips.
Ammonia and ammonium = <2.5 ppm

Ammonia and Ammonium 0 ppm
TDS 70 ppm

Ammonia/Ammonium = 0 ppm.
Colour of white sectors of Secchi disk were amber/orange. This at 4.25 meters.
This is a change - usual is more white sector.

Test strips used for Ca hardness, total alkalinity, pH, total hardness, nitrite, nitrate, therefore readings not exact.

The DO test was done under full ice cover using a borrowed MOECP meter.
Some information (above) is from MOECP 2019 sampling as part of the Lake
Partner Program.
This is a snapshot of the lake. It remains relatively constant.
There is a slight yr/yr increase in chlorides because of the proximity of Hwy 118E with
winter salting.