Specifications include, but are not limited to: all mobilization, labor, materials, and equipment required for the removal of sediment, rocks, sludge, debris, grease accumulations, root obstructions and protruding lateral connections from the sanitary sewer line segments identified; The project includes approximately 117,682 linear feet of 8”, 12”, and 15” diameter gravity sanitary sewer. • 8” Pipe 96,199 LF • 12” Pipe 16,093 LF • 15” Pipe 5,390 LF; Types of cleaning of sanitary sewers: a) Light cleaning of sewers consists of a maximum of 1 pass of the jet nozzle. b) Medium cleaning of sewers consists of 2 to 4 passes of the jet nozzle. c) Heavy cleaning consists of 5 or more passes of the jet nozzle such as removing heavy grease, debris, and roots. d) Descaling of Pipe: Multiple passes with mechanical equipment to remove scale build up to restore pipe to original inside diameter.
