The Cleveland Water Blog

Tags: water monitoring

Lake Erie Summer Stratification is Underway

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.

Using Past Innovation and Future Technology to Keep Drinking Water Safe

Environmental laws and regulations, spurred in large part by the last Cuyahoga River fire in 1969, have dramatically improved the quality of our nation’s waterways. But as these legacy issues are addressed, new environmental challenges have evolved – ones that are much less visible than a burning river.

How Cleveland Water is Prepared for Lake Erie Summer Water Quality

Every summer, as the temperature of Lake Erie slowly climbs in advance of the annual lake stratification, Cleveland Water closely monitors the lake's water quality for any issues that might follow.

Partnerships Help Ensure Clean and Safe Drinking Water

Cleveland Water takes pride in ensuring the water we treat and deliver to your tap meets and exceeds federal and state water quality regulations as well as industry standards.

Lake Erie Ice Season Is Here

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.

Lake Erie is Ready to Freeze

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.

When (and How Much) Will Lake Erie Freeze This Winter?

43.6 degrees Fahrenheit is the official temperature for Lake Erie offshore of Cleveland as of today, November 28. While that's still a good bit above freezing, as winter progresses and the lake temperature continues to drop we're on the lookout for ice formation.

Strong Winds Bring Big Changes in Lake Erie

Over the last 24 hours, strong winds blowing from the northwest to the southeast over the Great Lakes has caused massive downwelling events and temperature swings.

DO in H2O: How Low Dissolved Oxygen Creates a “Dead Zone”

Each summer, pockets of water with low levels of dissolved oxygen (DO) develop in areas of Lake Erie’s Central Basin, which stretches from Sandusky to Erie, PA.

DO in H2O: What is Dissolved Oxygen and How Does it Affect Your Water?

Have you ever set a glass of water on your bedside table only to take a drink out of it a few days later and think the water tastes “flat” or different? Chances are the water is missing dissolved oxygen. Dissolved oxygen (also called DO) is gaseous oxygen dissolved in water that you can’t see. Generally speaking, the more dissolved oxygen in the water the better it tastes.

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