Observation

Inlet between River Institute and L’Heritage High School

St.Lawrence River

River or stream

June 11, 2026 at 2:22 PM

QA status: Reviewed: quality check complete

Weather observations

  • Current weather description

    Community scientist interpretation

    Sporradic sunligh but the sky is mostly covered by dark clouds that promise rain.

  • Weather in the past 24hrs description

    Community scientist interpretation

    Heavy downpour and thundserstorms.

  • Current weather

    Community scientist interpretation

    • Sunny
    • Cloudy
  • Weather in the past 24hrs

    Community scientist interpretation

    • Rainy

Plants/wildlife

  • Algae

    Community scientist interpretation

    Cladaphora


Physical tests

  • Water level

    Community scientist interpretation

    Average

  • Secchi depth (clarity)

    Secchi disk (20 cm diameter)

    bottom visible m

  • Water depth

    Secchi disk (20 cm diameter)

    0.17 m

  • Ice presence

    Community scientist interpretation

    Ice off


Chemistry tests

  • Air temperature

    Water Rangers (stream thermometer) and/or weather app

    29 °C

  • Water temperature

    Water Rangers pen-type meter (temperature)

    23.9 °C

  • Conductivity

    Water Rangers pen-type meter (conductivity)

    502 μS/cm

  • Oxygen

    Chemetrics ampoules (dissolved oxygen)

    8.0 mg/L

    Regulatory
  • Chlorine

    Taylor teststrips (chlorine)

    ≤ 0 ppm

  • pH

    Taylor teststrips (pH)

    7.8

    Regulatory
  • Alkalinity

    Taylor teststrips (alkalinity)

    80 ppm

  • Hardness

    Taylor teststrips (hardness)

    200 ppm


Notes

A lot of perching birds are very active in the area, and a great blue heron landed on the other side of the inlet as I was collecting data. A boat launched from this dock at about 13:00, but the substrate has settled since then. Unrelated, the amount of litter along both sides of the inlet has increased since I last tested this site.