Coastal Cleanup Day. Cleaning up the Dominguez Channel at Wilmington Marinas. Over 14,000 volunteers took part in Coastal Cleanup Day in Los Angeles County, cleaning up beaches, parks, alleys, creeks, highways and storm drains at 69 different sites. Over 300,000 pounds of debris and recyclables were removed by the various environmental organizations, community groups, families, local businesses, faith-based organizations and students that took part. San Pedro, Los Angeles. California, USA