Location

St. Lawrence River

St. Lawrence

St. Lawrence in Ontario

Dataset summary

St. Lawrence River has data for ph, secchi_depth, hardness, alkalinity, water_depth, conductivity, air_temperature, water_temperature, current_weather, current_weather_description, previous_weather, and oxygen from 13 July 2025 to 13 July 2025.

45.054672, -74.569391

Summary of quantitative results

Guidelines for exceedances are based on: Canada
  • Physical tests

    • Water depth

      m

      Secchi disk (20 cm diameter)

      0.5

      Latest

      0.5

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

  • Chemistry tests

    • Water temperature

      °C

      Water Rangers pen-type meter (temperature)

      23.9

      Latest

      23.9

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • pH

      Taylor teststrips (pH)

      7.5

      Latest

      7.5

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • Oxygen

      mg/L

      Chemetrics ampoules (dissolved oxygen)

      12.0

      Latest

      12.0

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • Hardness

      ppm

      Taylor teststrips (hardness)

      200.0

      Latest

      200.0

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • Conductivity

      μS/cm

      Water Rangers pen-type meter (conductivity)

      303.0

      Latest

      303.0

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • Alkalinity

      ppm

      Taylor teststrips (alkalinity)

      80.0

      Latest

      80.0

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • Air temperature

      °C

      Water Rangers (stream thermometer) and/or weather app

      25.0

      Latest

      25.0

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

View observation list ›

Location description
River by cottages, across from farm growing corn