A posted sign warning about water contact may cause illness is posted by life guards after an oil spill in Huntington Beach, Calif., Sunday, Oct. 3, 2021. Vessels with the Marine Spill Response Corporation (MSRC) vessel, background, an oil spill removal organization (OSRO), deploy floating barriers around the largest oil spills in recent Southern California history fouled popular beaches and killed wildlife while crews scrambled Sunday to contain the crude before it spread further into protected wetlands. (AP Photo/Ringo H.W. Chiu)