LA Department of Public Health 

Beach Warnings for Los Angeles County September 21, 2023

Warnings for SM Pier, Topanga, Marina del Rey


September 21, 2023

Alyssa Erdley

Bacteria levels in runoff water produced large amounts of algae here at the beach in Topanga

September 21, 2023

Ocean Water Use Warning for Los Angeles County Beaches

The Los Angeles County Department of Public Health cautions residents who are planning to visit the below Los Angeles County beaches to avoid swimming, surfing, and playing in ocean waters:


Mothers Beach in Marina Del Rey

The entire swim area.

Santa Monica Pier in Santa Monica

Alyssa Erdley

Will Rogers State Beach

100 yards up and down the coast from the pier.

Sweetwater Canyon Storm Drain at Carbon Canyon Beach

The entire swim area.

Marie Canyon Storm Drain at Puerco Beach

100 yards up and down the coast from the public access steps.

Topanga Canyon Beach in Malibu

100 yards up and down the coast from the lagoon.

These warnings have been issued due to bacterial levels exceeding health standards when last tested.

Recorded information on beach conditions is available 24- hours a day on the County's beach closure hotline: 1-800- 525-5662. To view the map of impacted locations and for more information, please visit


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