As of late February 2026, Newport Beach is generally clear, though it is vital to check current Orange County Health Care Agency water quality reports. While a massive sewage disaster has been unfolding along the Potomac River in the Eastern US this month, local spills in Southern California are typically triggered by heavy rain events that overwhelm the aging infrastructure. For example, major spills in nearby Huntington Beach or the Santa Ana River often lead to "precautionary" closures in West Newport. If a spill occurs, the city issues a "Health Warning" and physically closes the affected beach sections to swimming and surfing until bacteria levels (like E. coli) return to safe thresholds. If you are planning a visit today, look for the yellow warning signs at lifeguard towers; if no signs are present and the "Ocean Water Protection" website shows a green status, the water is safe for recreation. Always avoid swimming near storm drains for at least 72 hours after any significant rainfall to minimize the risk of illness.