The Northeast Ohio Regional Sewer District protects public health and the environment by leading effective wastewater and stormwater management. As the largest wastewater treatment provider in the State of Ohio, the Sewer District spans nearly 380 square miles, serves 63 communities and one million residents, treats 90 billion gallons of wastewater a year, and manages more than 400 miles of streams, all through the work of 700+ employees across the region.