SARASOTA -- Three Sarasota County beaches are back on the "no swim" list.
The state health department says testing last Monday shows unacceptable levels of bacteria at Lido Casino, North Lido Beach and Siesta Key Beach.
But they may get the all-clear as soon as Friday afternoon, when new test results are due back.
Decaying algae spotted near the waterline could be the cause, according to the health department.
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