A historic East Bay company that generated the foul stench of sewage odor, polluting a town’s air, has settled a lawsuit with Contra Costa County prosecutors for approximately $500,000, authorities said Tuesday. C&H Sugar, whose plant has been a staple in the unincorporated city of Crockett since 1906, committed the odor violations in 2022 at a wastewater treatment plant it jointly owns on Dowrelio Drive, according to a statement from the Contra Costa County District Attorney’s Office. They added that the company agreed to pay $400,000 in civil penalties and $100,000 in costs.