Specifications include, but are not limited to: This project is needed to determine the physical condition of approximately 12,710 linear feet of sewer pipeline located throughout the District in easement areas, in and around North Charleston, South Carolina. Pipe sizes involved are 8 to 24-inch gravity lines. Most of this work will occur within partially wooded easements on private property and/or within wetland areas. It is anticipated that easement machines will be needed for this project in place of traditional cleaning and camera equipment. Television Equipment A. The camera unit shall be a color pan and tilt unit for mainline inspections. The television camera shall have a resolution of 700 lines minimum and shall have a source of illumination attached to it. With the monitor adjusted for correct saturation, the six colors plus black and white shall be clearly resolved with the primary and complementary colors in order of decreasing luminance. The gray scale shall appear in contrasting shades of gray with no tint. To ensure the camera shall provide similar results when used with its own illumination source, the lighting shall be fixed in intensity prior to commencing the inspection. In order to ensure color constancy, no variation in illumination shall take place during the inspection. The televised image shall be displayed on a monitor, located in an enclosed space in the television inspection vehicle. B. CCTV Focus/Iris/Illumination: The adjustment of focus and iris shall allow optimum picture quality to be achieved and shall be remotely operated. The adjustment of focus and iris shall provide a minimum focal range from 6 inches in front of the camera’s lens to infinity. The distance along the sewer in focus from the initial point of observation shall be a minimum of twice the vertical height of the sewer. The illumination must allow an even distribution of the light around the sewer perimeter without the loss of contrast picture, flare out or shadowing.