Maryland legislators are scrambling to halt the release of treated wastewater from the East Palestine, Ohio, train derailment site into the Baltimore sewer system. State and local officials were notified Friday that the Norfolk Southern railroad hired Clean Harbors Environmental Services to remove toxic chemicals from water from the derailment site at its Southwest Baltimore facility. Clean Harbors plans to put the treated wastewater into Baltimore’s sewer system, where it would go to the problematic Back River Wastewater Treatment Plant in Dundalk.