Over the summer months, Cleveland Water staff have been closely watching as the waters of Lake Erie separate into distinct layers – a layer of warm water at the surface and a cold water layer at the bottom of the lake.
Each year Cleveland Water issues a Water Quality Report for our customers. This annual report, also called a Consumer Confidence Report, provides a review of our water quality during the past year, including testing results and information.
Several days ago we told you that Lake Erie’s bottom water temperatures had reached below the magic number of 39.2°F, meaning the surface could freeze as long as the air temperature above the lake stayed below freezing.
Since the start of 2019, the temperature of the lake water coming into Cleveland Water’s Garrett Morgan Treatment Plant has stayed below 39.2°F (4°C). This is the magic number that signals the lake’s surface can now start to freeze.