An Alabama utility company has disclosed that more than 800,000 gallons of untreated sewage spilled from a plant during a storm, eventually reaching the Tennessee River. Local media reports disclosures filed by Decatur Utilities with the state Environmental Department reveal that about 8 million gallons of raw sewage have escaped the company's system this year. The largest discharge happened last week when rain overwhelmed old pipes and sewage flowed from a manhole for days. A Decatur Utilities spokesman has said the company is continuing to replace aging infrastructure. In a separate lawsuit, the state alleges previous spills have increased E. coli levels in the river.