OAKLAND (KCBS) — Winter rains, heavier than what we’ve been used to, have pushed a lot of debris and trash down the Bay Area’s streams, and that means there’s more to clean up this coming Earth Day.

The city of Oakland is putting the call out for more volunteers to show up on Saturday to help with the cleanup.

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Plastic, Styrofoam, and rainbow sheen dot East Creek Slough next to the Oakland Coliseum, which is one of the spots where the cleanup effort will be focused.

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“There’s trash, but there’s also leaves, and branches, and trees come down, and that impacts our creeks as well,” Jennifer Stern, an Environmental Services Analyst with Oakland.

Workers in Oakland recently pulled a mattress, a car bumper, and other trash out of one of the city’s creeks.

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“We really need volunteers to come out this Earth Day,” Stern said.