Observation

Ottawa River

Ottawa River

River or stream

View trends at this location

November 18, 2025 at 2:00 PM

QA status: Reviewed: quality check complete

Weather observations

  • Current weather description

    Community scientist interpretation

    Cloudy

  • Weather in the past 24hrs description

    Community scientist interpretation

    Cloudy and windy

  • Weather in the past 24hrs

    Community scientist interpretation

    • Cloudy

  • Current weather

    Community scientist interpretation

    • Cloudy

Chemistry tests

  • pH

    Taylor teststrips (pH)

    6.4

  • Oxygen

    mg/L

    Chemetrics ampoules (dissolved oxygen)

    10

  • Hardness

    ppm

    Taylor teststrips (hardness)

    150

  • Alkalinity

    ppm

    Taylor teststrips (alkalinity)

    120

  • Conductivity

    μS/cm

    Water Rangers pen-type meter (conductivity)

    122

  • Air temperature

    °C

    Water Rangers (stream thermometer) and/or weather app

    2

  • Water temperature

    °C

    Water Rangers pen-type meter (temperature)

    4.6

  • Chlorine

    ppm

    Taylor teststrips (chlorine)

    1

Physical tests

  • Secchi depth (clarity)

    m

    Secchi disk (20 cm diameter)

    Bottom visible

  • Water depth

    m

    Secchi disk (20 cm diameter)

    0.1

Recent photos

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Notes

The geese are getting the last of the grass before they have to leave. It feels like it's going to be a good old fashioned winter.

Location description
The Ottawa River just above the Carillon Dam and the reservoir called Lac dollard-des-ormeaux. The water moves Eastward slowly. It is a boating recreational area just above voyageur Provincial Park.