Observation

Inlet between River Institute and L’Heritage High School

St.Lawrence River

River or stream

May 6, 2026 at 3:02 PM

QA status: Needs review

This observation is under review by Water Rangers, last updated on 2026-05-06, and has not been marked as checked yet. Details are below.

Review needed: Based on previous readings, conductivity's result of 485μS/cm is outside the expected range of 195.81-418.2μS/cm.

Weather observations

  • Current weather description

    Community scientist interpretation

    It's currently cloudy, and was rainy all morning.

  • Current weather

    Community scientist interpretation

    • Cloudy
    • Rainy

  • Weather in the past 24hrs

    Community scientist interpretation

    • Sunny
    • Cloudy

Plants/wildlife

  • Algae

    Community scientist interpretation

    Attached

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)

    0.15 m

  • Ice on

    Community scientist interpretation

    false

Chemistry tests

  • Air temperature

    Water Rangers (stream thermometer) and/or weather app

    12 °C

  • Water temperature

    Water Rangers pen-type meter (temperature)

    10.6 °C

  • Conductivity

    Water Rangers pen-type meter (conductivity)

    485 μS/cm

  • Oxygen

    Chemetrics ampoules (dissolved oxygen)

    7.0 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)

    100 ppm