U.S. Beach Water Bacteria Warnings Ahead of July 4

Public health officials have issued warnings about harmful bacteria in beach waters across the United States as millions plan to celebrate the Fourth of July. In Long Island’s Hamptons, researchers from Stony Brook University detected the marine pathogen Vibrio vulnificus in Sagaponack Pond, Mecox Bay and Georgica Pond. The bacteria can cause severe wound infections and sepsis, especially in people with open wounds, liver disease, diabetes or weakened immune systems. “My advice is not to panic, but to take the risk seriously,” said R. Sean Norman of the University of South Carolina.

Meanwhile, the Los Angeles County Department of Public Health has posted ocean‑water warnings for Redondo Beach, Marina del Rey, San Pedro, Topanga, Malibu and Santa Monica, citing elevated bacteria levels that exceed state standards. The warnings advise against swimming, surfing or any ocean‑water contact for at least three days. In Orange County, a sewage spill forced a half‑mile beach closure in Laguna Beach, with officials saying the area will remain closed until water quality improves.

Officials in both regions stress prompt treatment of any wound infections and recommend that beachgoers monitor local alerts before entering the water.