TAMPA - Elevated levels of enterococci bacteria in the water prompted the Hillsborough County Health Department to issue a warning for bathers at Davis Islands Beach.
Samples taken Monday were above the federally recommended threshold for the bacteria, the health department said Wednesday in a news release.
The presence of enteric bacteria is an indication of fecal pollution, which may come from storm water runoff, animals or human sewage.
U.S. Environmental Protection Agency standards for enterococci call for no more than 104 colony forming units per 100 milliliters of marine water.
When sampling indicates the water is within a satisfactory range, the advisory will be lifted.
Water at the beach, just south of Peter O. Knight Airport on the end side of Davis Islands, will be sampled again next Monday.