Swimmers should stay out of the water near the Redondo Beach Pier after the Los Angeles County Department of Public Health added the popular spot to its bacteria warning list Monday, Aug. 17.

The warning covers ocean water within 100 yards up and down the coast from the pier. Recent water samples showed bacterial levels exceeding state health standards, which the department said may increase the risk of illness for anyone swimming, surfing or playing in the water.

The Redondo Beach Pier advisory is a new addition. A separate warning for the Avenue I storm drain in Redondo Beach, issued Aug. 12, remains active with the same 100-yard buffer. The earlier Hermosa Beach Pier warning, also issued Aug. 12, has been cleared after follow-up samples came back within state standards, according to the county's Aug. 17 advisory.

Eight LA County beaches total were under active warnings as of Monday, MyNewsLA reported. The other six sites include the Santa Monica Pier, two storm drains at Santa Monica Beach, Ramirez Creek at Paradise Cove, Solstice Creek at Dan Blocker County Beach and Inner Cabrillo Beach in San Pedro.

The warning arrives as South Bay families head to the beach during the final days of summer break. Back-to-school events begin Tuesday, Aug. 18, at Tulita Elementary and Lincoln Elementary in Redondo Beach, and the pier area draws crowds through the end of August.

The Beach Cities of Redondo Beach, Manhattan Beach and Hermosa Beach jointly collect water samples within their cities once a week year-round. LA County DPH and the Sanitation Districts resample sites that have exceeded state standards. The department posts warning signs at affected beaches and updates conditions as new results come in.

No timeline has been given for when the Redondo Beach Pier or Avenue I warnings might be lifted.

Residents can check current beach water conditions 24 hours a day by calling the county hotline at 1-800-525-5662 or visiting the online map at publichealth.lacounty.gov/beach.