Observation

Casablanca Beach

Lake Ontario

Lake

March 29, 2026 at 2:39 PM

QA status: Reviewed: quality check complete

Weather observations

  • Current weather

    Community scientist interpretation

    • Cloudy

  • Weather in the past 24hrs

    Community scientist interpretation

    • Sunny

Qualitative readings

  • Water use

    Community scientist interpretation

    Fishing

  • Colour

    Community scientist interpretation

    Colourless

  • Clarity

    Community scientist interpretation

    Clear

Plants/wildlife

  • Algae

    Community scientist interpretation

    None

Issue reporting

  • Water surface

    Community scientist interpretation

    None

  • Pollution sources

    Community scientist interpretation

    Residential discharge

  • Odour

    Community scientist interpretation

    None

Physical tests

  • Water flow

    Community scientist interpretation

    Slow

  • Water level

    Community scientist interpretation

    Average

Chemistry tests

  • Air temperature

    Water Rangers (stream thermometer) and/or weather app

    15 °C

  • Water temperature

    Water Rangers pen-type meter (temperature)

    7.1 °C

  • Conductivity

    Water Rangers pen-type meter (conductivity)

    335 μS/cm

  • Oxygen

    Chemetrics ampoules (dissolved oxygen)

    ≥ 12.0 mg/L

    Regulatory

  • Chlorine

    Taylor teststrips (chlorine)

    ≤ 0 ppm

  • pH

    Taylor teststrips (pH)

    7.5

    Regulatory

  • Alkalinity

    Taylor teststrips (alkalinity)

    100 ppm

  • Hardness

    Taylor teststrips (hardness)

    150 ppm

  • Chloride

    Hach teststrips (chloride - low range)

    98.0 mg/L

    Regulatory

Biological tests

  • E. coli

    Roth R-Card 3mL (E. coli)

    ≤ 0.0 CFU/100 mL

    highest of 3 samples Regulatory