A No Swim advisory was issued for four beaches in Martin County.
The waters near Roosevelt Bridge, Sandsprit Park, Leighton Park and Stuart sandbar are all affected with high levels of bacteria, which officials say the heavy recent rain may have contributed to it.
The health department will retest the water next week.
Health officials have lifted the advisory in Southern Palm Beach County after a retest of bacteria levels came back clean. Ocean Inlet and Spanish River Beach are safe to swim again.