A historic East Bay company that generated the foul stench of sewage odor that polluted 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 at Dowrelio Drive, according to a statement from the Contra Costa County District Attorney's Office.