Health Advisory Issued for 20 New York Beaches After Heavy Rainfall Runoff

Health officials have issued a precautionary advisory against swimming at 20 beaches across Nassau County due to contamination risks linked to stormwater runoff following recent heavy rainfall.

The advisory was announced by the Nassau County Department of Health, which warned that runoff from prolonged storms can elevate bacteria levels in coastal waters beyond safe swimming standards set by New York State.

Authorities said the affected beaches include 16 North Shore locations and 4 South Shore beaches, among them Centre Island Sound in Bayville, North Hempstead Beach Park in Port Washington, and Island Park Beach. Officials emphasized that the advisory is temporary and is expected to be lifted at 10 a.m. on Memorial Day, depending on water quality test results.

Health officials noted that continued rainfall could extend the advisory period or expand its scope if additional contamination is detected. Stormwater runoff remains a recurring concern in coastal areas, particularly after heavy precipitation events that overwhelm drainage systems and carry pollutants into bathing waters.

Residents and visitors have been urged to avoid swimming at affected locations until official clearance is given, while local agencies continue monitoring water conditions and conducting safety assessments.

The situation highlights ongoing environmental and public health challenges associated with extreme rainfall events and urban runoff in coastal regions of New York.