Summary of quantitative results
Guidelines for exceedances are based on:
Canada
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Physical tests
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Chemistry tests
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St. Lawrence River in Ontario
Mariatown Bay - Erosion Project site has data for current_weather, hardness, ph, alkalinity, conductivity, water_temperature, air_temperature, chlorine, previous_weather, current_weather_description, secchi_depth, previous_weather_description, and water_depth from 24 July 2023 to 28 October 2025.
This data is part of a bigger dataset, Upper St. Lawrence River Volunteer Monitoring.