Observation

École secondaire publique L'Héritage

St. Lawrence River

River or stream

August 5, 2026 at 1:53 PM

QA status: Reviewed: quality check complete

Weather observations

  • Current weather description

    Community scientist interpretation

    Sunny, mostly clear sky, hot

  • Weather in the past 24hrs description

    Community scientist interpretation

    Sunny and clear sky , hot

  • Current weather

    Community scientist interpretation

    • Sunny
  • Weather in the past 24hrs

    Community scientist interpretation

    • Sunny

Plants/wildlife

  • Aquatic vegetation

    Community scientist interpretation

    Submerged (fully under the water) Not visible
    Plants floating on the surface Less than 5%
    Plants emerging out of the water Not visible
    Algae (crusts or thin mats) Not visible
  • Algae

    Community scientist interpretation

    None


Physical tests

  • Water level

    Community scientist interpretation

    Low

  • Secchi depth (clarity)

    Secchi disk (20 cm diameter)

    bottom visible m

  • Water depth

    Secchi disk (20 cm diameter)

    0.25 m

  • Ice presence

    Community scientist interpretation

    Ice off


Chemistry tests

  • Water temperature

    Water Rangers pen-type meter (temperature)

    26 °C

  • Conductivity

    Water Rangers pen-type meter (conductivity)

    291 μS/cm

  • Oxygen

    Chemetrics ampoules (dissolved oxygen)

    9.0 mg/L

    Regulatory
  • pH

    Taylor teststrips (pH)

    7.5

    Regulatory
  • Alkalinity

    Taylor teststrips (alkalinity)

    80 ppm

  • Hardness

    Taylor teststrips (hardness)

    100 ppm


Notes

People and dogs enjoying river. 2 people swimming