Wastewater System

The City of Hamilton Wastewater System is part of the Department of Underground Utilities and is made up of two primary divisions:
  • Sanitary Sewer Division – responsible for operating and maintaining the sanitary sewer infrastructure for the collection and conveyance of wastewater to the Water Reclamation Facility
  • Water Reclamation Division – responsible for treating wastewater that is collected and delivered by the sanitary sewer infrastructure
Located along the eastern bank of the Great Miami River, the City’s initial wastewater treatment plant was placed in service in 1959. The plant was expanded in 1978 and again in 2002 to provide complete treatment services. Today the Water Reclamation Facility (WRF) provides primary and secondary treatment to remove approximately 99% of the solids and organics from the wastewater flow and treats approximately 80 tons of solids daily. The WRF has a biological treatment capacity of 32 million gallons per day (MGD), and a hydraulic capacity of 62 MGD.

Storm Water Management

A Storm Water Management System was created by Hamilton City Council Ordinance in 2002 and has since evolved into the Storm Water Division. This division is located within the Department of Public Works and is responsible for managing the City’s storm water drainage system. Storm water is water that originates from precipitation events, such as rain or snow. While most storm water is soaked into the ground, some becomes runoff that either flows directly into surface waterways or is channeled into storm sewers and eventually discharged into surface waterways. Learn more about the City’s storm water management here.

In 2007, a Modified Consent Order (Consent Decree) was executed with the Ohio Environmental Protection Agency (EPA) in which the City of Hamilton was required to undertake remedial measures to eliminate and/or reduce sanitary sewer overflow (SSO) occurrences. These SSO’s most often occur after heavy precipitation events when storm water enters the sanitary sewer system. Learn more about the Ohio EPA Consent Decree here.

To learn about relatively easy methods to reduce storm water runoff and improve storm water management and use on your property, such as rain gardens and rain barrels, view the City of Hamilton's Landscape Guide for Developers, Businesses and Homeowners