Tar washes ashore in South Bay

Ariadne Reynolds, marine projects manager with the Bay Foundation, holds a sample of a tar-like substance collected from the water off the coast of Manhattan Beach on May 28.

Ariadne Reynolds, marine projects manager with the Bay Foundation, collects a sample of a tar-like substance from the water off the coast of Manhattan Beach on May 28.

Workers pick up tar-like substance in Manhattan Beach on May 28.

Brad Fyffe of Manhattan Beach rakes up a clump of a tar-like substance as Ocean Blue workers clean up a two-mile stretch of shoreline north of the Manhattan Beach pier.

Ocean Blue workers remove clumps of a tar-like substance from a two-mile stretch of shoreline north of the Manhattan Beach pier May 27.

An Ocean Blue worker removes clumps of a tar-like substance from a two-mile stretch of shoreline north of the Manhattan Beach pier May 27.

A gull looks down at clumps of a tar-like substance that washed ashore north of the Manhattan Beach pier.

An emergency worker removes clumps of tar-like substance from the sand north of the Manhattan Beach Pier.