Observation

East Holland River at Aurora Community Arboretum (AFLC)

Lake Simcoe

River or stream

Quality check pending

October 18, 2025 at 1:29 PM

View trends at this location

Weather observations

  • Current weather

    Community scientist interpretation

    • Sunny

  • Weather in the past 24hrs

    Community scientist interpretation

    • Rainy

Chemistry tests

  • pH

    Taylor teststrips (pH)

    7.3

  • Oxygen

    mg/L

    Chemetrics ampoules (dissolved oxygen)

    7

  • Chlorine

    ppm

    Taylor teststrips (chlorine)

    0

  • Hardness

    ppm

    Taylor teststrips (hardness)

    250

  • Alkalinity

    ppm

    Taylor teststrips (alkalinity)

    160

  • Conductivity

    μS/cm

    Water Rangers pen-type meter (conductivity)

    908

  • Air temperature

    °C

    Water Rangers (stream thermometer)

    20

  • Water temperature

    °C

    Water Rangers pen-type meter (temperature)

    12

Notes

on the water surface: none in the immediate surroundings: none evidence of water uses: none algae: no water flow: slow estimated water level: low Water colour: clear clarity: clear odour: none

Location description
The water in this area flows gently, next to a municipal facility, with a paved walkway. Residents often walk their pets here, and there are grassy areas, a baseball field, and a shaded gazebo nearby.