Location

Gervais Caves underground channel resurgence

Ottawa River

Ottawa River in Ontario

Dataset summary

Gervais Caves underground channel resurgence has data for ph, oxygen, secchi_depth, chlorine, hardness, alkalinity, water_depth, conductivity, air_temperature, water_temperature, current_weather, current_weather_description, previous_weather, and previous_weather_description from 7 July 2019 to 7 July 2019.

45.882719, -76.925154

Summary of quantitative results

Guidelines for exceedances are based on: Canada

  • Chemistry tests

    • Alkalinity

      ppm

      Taylor teststrips (alkalinity)

      40.0

      Latest

      40.0

      Average

      Not enough data for trend yet

      Trendlines will appear once three sampling dates are entered

    • Oxygen

      mg/L

      Chemetrics ampoules (dissolved oxygen)

      8.0

      Latest

      8.0

      Average

      Not enough data for trend yet

      Trendlines will appear once three sampling dates are entered

    • Chlorine

      ppm

      Taylor teststrips (chlorine)

      0.0

      Latest

      0.0

      Average

      Not enough data for trend yet

      Trendlines will appear once three sampling dates are entered

    • Conductivity

      μS/cm

      Water Rangers pen-type meter (conductivity)

      52.0

      Latest

      52.0

      Average

      Not enough data for trend yet

      Trendlines will appear once three sampling dates are entered

    • pH

      Taylor teststrips (pH)

      7.2

      Latest

      7.2

      Average

      Not enough data for trend yet

      Trendlines will appear once three sampling dates are entered

    • Air temperature

      °C

      Water Rangers (stream thermometer) and/or weather app

      26.5

      Latest

      26.5

      Average

      Not enough data for trend yet

      Trendlines will appear once three sampling dates are entered

    • Water temperature

      °C

      Water Rangers pen-type meter (temperature)

      19.8

      Latest

      19.8

      Average

      Not enough data for trend yet

      Trendlines will appear once three sampling dates are entered

    • Hardness

      ppm

      Taylor teststrips (hardness)

      0.0

      Latest

      0.0

      Average

      Not enough data for trend yet

      Trendlines will appear once three sampling dates are entered

  • Physical tests

    • Water depth

      m

      Secchi disk (20 cm diameter)

      2.0

      Latest

      2.0

      Average

      Not enough data for trend yet

      Trendlines will appear once three sampling dates are entered

    • Secchi depth (clarity)

      m

      Secchi disk (20 cm diameter)

      1.1

      Latest

      1.1

      Average

      Not enough data for trend yet

      Trendlines will appear once three sampling dates are entered

View observation list ›

Location description
This is a little bay off the river, where there is a resurgence outflowing from underground, which is part of the Gervais Caves (sinkhole) system. There is a strong current swirling around in the bay, and out into the river.