In March 2005, it was announced that BP would pay over $106 million in the largest legal settlement ever with Southern California’s air pollution agency. The agreement ended litigation over pollution from the BP West Coast Products refining plant in Carson, where neighboring residents have complained for years about emissions from the facility. The settlement requires BP to pay the South Coast Air Quality Management District $31 million in cash, which includes $25 million in penalties and $6,012,360 for past emission fees; $30 million over 10 years to fund programs for asthma diagnosis and treatment; $25 million to replace a waste system that reduces hydrogen-sulfide pollution; and $20 million for other pollution controls at the plant.