More than 13,000 gallons of raw sewage spilled into DeKalb County waterways Monday, according to the watershed management department.

County water reports show an 8,865-gallon spill into a tributary flowing in to Honey Creek from the 7800 block of Covington Highway in Lithonia. Records also show a 5,680-gallon spill into Conley Creek from the 4200 block of Panthersville Road in Elenwood.

In December, the federal Environmental Protection Agency mandated the county upgrade its sewage system after more than 800 spills were reported in five years.