It's tough working at a marina where the algae in fact toxic.
"Levels came back at 100," said Mary Radabuagh at Central Marine.
She learned about the results yesterday.
"We have been taking the precautions," said Radabaugh.
Her employees are trying to work away from the water and wearing masks when necessary.
"Using high peroxide with water to rinse off all of our equipment," said Radabaugh.
Central Marine was not the only location test results showed high levels of microcystin.
Algae along the St. Lucie Canal tested three times more than what's considered safe. Both locations have been added to the Department of Health's advisory.
Mary hopes business owners and homeowners continue to report blue-green algae to the DEP.
"Please report it and you will get test results back on their website and we will know what we're dealing with," said Radabaugh.