Helliwell Lake Bridge (RR 250)

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Weather observations

• Current weather description

  Community scientist interpretation

  light snow the past few days and today, overcast, lake beginning to freeze (pan ice)

• Current weather

  Community scientist interpretation

  • Snowy

• Weather in the past 24hrs

  Community scientist interpretation

  • Snowy

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Physical tests

• Water depth

  Secchi disk (20 cm diameter)

  0.3 m

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Chemistry tests

• pH

  Taylor teststrips (pH)

  7.8

  Regulatory

• Oxygen

  Chemetrics ampoules (dissolved oxygen)

  7.0 mg/L

  Regulatory

• Chlorine

  Taylor teststrips (chlorine)

  ≤ 0 ppm

• Hardness

  Taylor teststrips (hardness)

  150 ppm

• Alkalinity

  Taylor teststrips (alkalinity)

  140 ppm

• Conductivity

  Water Rangers pen-type meter (conductivity)

  816 μS/cm

• Air temperature

  Water Rangers (stream thermometer) and/or weather app

  0 °C

• Water temperature

  Water Rangers pen-type meter (temperature)

  1.8 °C