Observation

End of dock

Lake Hardwood

Lake

September 28, 2019 at 1:00 PM

QA status: Reviewed: quality check complete

Weather observations

  • Current weather

    Community scientist interpretation

    • Sunny

  • Current weather description

    Community scientist interpretation

    Fairly sunny, cool, some clouds and a light wind.

  • Weather in the past 24hrs

    Community scientist interpretation

    • Cloudy
    • Rainy

  • Weather in the past 24hrs description

    Community scientist interpretation

    Previously overcast with some light rain overnight.

Physical tests

  • Secchi depth (clarity)

    Secchi disk (20 cm diameter)

    0.25 m

  • Water depth

    Secchi disk (20 cm diameter)

    .5 m

Chemistry tests

  • pH

    Taylor teststrips (pH)

    7.2

    Regulatory

  • Oxygen

    Chemetrics ampoules (dissolved oxygen)

    9.0 mg/L

    Regulatory

  • Hardness

    Taylor teststrips (hardness)

    50 ppm

  • Alkalinity

    Taylor teststrips (alkalinity)

    120 ppm

  • Conductivity

    Water Rangers pen-type meter (conductivity)

    122 μS/cm

  • Air temperature

    Water Rangers (stream thermometer) and/or weather app

    16.8 °C

  • Water temperature

    Water Rangers pen-type meter (temperature)

    16.5 °C

  • Chlorine

    Taylor teststrips (chlorine)

    ≤ 0 ppm

Notes

There is a layer of silt -- small woody fragments -- that sits at the bottom in a suspended layer all along the actual bottom. Various birds present.