CLEARWATER — The Pinellas County Health Department issued an advisory to swimmers Friday after finding high bacteria counts in the bay water at the Courtney Campbell Causeway beach. The advisory states, "This area should be considered a potential health risk to swimmers." The Health Department conducts saltwater beach testing through the Healthy Beaches Monitoring Program. Water samples are analyzed for enteric bacteria that normally inhabit the intestinal tracts of humans and animals, and which may cause human disease, infections or rashes. The presence of enteric bacteria is an indication of fecal pollution, which may come from stormwater run-off, pets, wildlife and sewage. Water testing results from tests conducted on Wednesday showed that the water quality was poor at the Courtney Campbell beach. The department will sample the water again on Jan. 7 to determine if it is safe for swimming.