Specifications include, but are not limited to: The scope of work covered by these specifications includes the supply of a two mancrew and parts for on-site repair and preventative maintenance of air/vacuum relief valves on wastewater force mains owned by the City of Chattanooga's Wastewater Department in the City of Chattanooga Interceptor Sewer System as described herein. The Wastewater Treatment Plant is located at 455 Moccasin Bend Road, Chattanooga, Tennessee 37405 and the wastewater force mains are located throughout the Chattanooga area and surrounding region. The air release valves are typically located in manholes. The City owns approximately 162 Air Release Valves and they range in size from 1 inch to 12 inches