WESTLAKE, Ohio -- At the Crown Filtration Plant, officials with the Cleveland Division of Water are confident that the region's water will stay safe to drink, but they are watching the water supply very carefully.
"We're monitoring the water constantly," said Alex Margevicius, the division's interim director.
Margevicius said that Cleveland gets its water from the central basin of Lake Erie.
Toledo, which has had a "do not drink the water" order in place for most of the weekend, gets its water from the lake's western basin.
"It's shallower out there," said Margevicius. "And it's very agricultural. There's lot of phosphorus-based fertilizers that wash into the lake out in that region."
That run-off feeds the algae bloom that is at the source of Toledo's problems.
As the algae dies, it releases a toxin - micorcystin - that can cause liver and stomach problems.
Margevicius said there is also no one full-proof test for this problem.
"I do know they (Toledo water officials) are wondering if any of the tests were false positives," he said.
But he adds that health officials have to error on the side of caution.
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