Put in Bay WWTP and Sewer System - Put-in-Bay, Ohio Wastewater Treatment

The Put in Bay WWTP and Sewer System is a municipal wastewater treatment facility located on South Bass Island in Lake Erie, serving the village of Put-in-Bay, Ohio. The plant is designed to handle a capacity of 1.00 million gallons per day and serves a population of about 10,450 residents and seasonal visitors. As a US facility, the plant operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Ohio Environmental Protection Agency. For a community of this size, secondary treatment is typically required, with additional nutrient removal standards applicable to discharges into Lake Erie due to harmful algal bloom concerns. The plant's treated effluent is discharged into Lake Erie, part of the Great Lakes system, which ultimately flows to the Atlantic Ocean via the St. Lawrence River. Lake Erie is a critical freshwater resource supporting drinking water, recreation, and diverse aquatic life, including fish species such as walleye and yellow perch. The plant plays a key role in protecting the lake's water quality from nutrient pollution and pathogens.

The plant discharges into Lake Erie, the shallowest and most biologically productive of the Great Lakes. The lake supports a major fishery and provides drinking water for millions. Downstream, Lake Erie drains via the Niagara River into Lake Ontario and then the St. Lawrence River to the Atlantic. The region faces challenges from nutrient runoff, particularly phosphorus, which fuels harmful algal blooms. The plant's treatment standards help mitigate these impacts.