WASTEWATER TREATMENT PLANT & SEWERS

Welcome to the City of Oneida Waste Water Treatment Plant & Sewers Department

Sanitary Sewer Collection System and Wastewater Treatment Plant:

The goal of all wastewater treatment is to change harmful pollutants in waste products into non-polluting products that can be safely released back into the environment.The City of Oneida is responsible for operating the largest wastewater treatment plant (WWTP) in Madison County. The facility utilizes primary and secondary treatment along with seasonal disinfection to achieve effluent water quality goals. Primary (mechanical) treatment is designed to remove suspended and floating solids via bar screens and primary clarifiers.  Secondary (biological) treatment uses an activated sludge process. The process utilizes aerobic microbes to remove dissolved organic matter that escaped primary treatment. Secondary treatment also consists of phosphorus removal by adding liquid iron salts.  The City of Oneida is currently undertaking a multiyear project to implement long term improvements at the Wastewater Treatment Plant.  The new improvements will address the requirements of a NYSDEC Consent Order.  In addition, the project includes improvements to the existing aeration basins and secondary clarifiers, solids processing equipment and organic waste loading processes.  

From May 15 to October 15 effluent is disinfected using chlorine to kill fecal coliform.

Treated effluent from the WWTP is conveyed to Oneida Creek with a small flow proportion conveyed to the Turning Stone Resort for irrigation use during summer operations. The effluent conveyed to the Turning Stone Resort undergoes additional tertiary treatment.

WWTP effluent is regulated by the NYS DEC under a State Pollution Discharge Elimination System (SPDES) permit. The permit mandates water quality parameters and monitoring requirements.

• WWTP Design Flow: 4.5 MGD
• Daily Peak Design Flow: 10 MGD