Although authorities havent yet found the swimmer, the original call was "credible", said Jeff Williamson, a spokesman for the Sheriffs Office.
Florida Fish and Wildlife officials are also on scene with their nuisance gator truck and said they received a report of a missing 15-year-old boy nearby and said they, along with other partner agencies, are actively searching the body of water.
Orange County Fire-Rescue is searching the lake in a residential neighborhood in east Orlando for any signs of the 15-year-old boy.
There were concerns that the victim may have been attacked by an alligator after an eyewitness said he'd seen a teenager flailing in the water Wednesday, shouting, "It bit me!" The teen eventually went underwater and didn't resurface.
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"There's four alligators in this lake", Wolfe told the Orlando television station Wednesday. The gator was too small to inflict damage to a human, they said.
"No Trespassing" signs are posted around the fence pond; however residents told WFTV that people still swim and fish there despite the alligators.
In a series of tweets Thursday morning, the Orange County Sheriffs Office confirmed the recovery of a female around 6:30 a.m.in the retention pond, about 50 yards from the shoreline.
Neighbors have reported spotting a six-foot alligator in the pond in the past, according to authorities.