Transcription of Washington, D.C. September 1999 Collection Systems O&M ...
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Washington, D.C. September 1999 Collection Systems O&M ...
United States Office of Water EPA 832-F-99-031. Environmental Protection Washington, September 1999 . Agency Collection Systems O&M Fact Sheet Sewer Cleaning and inspection DESCRIPTION are recommended for sewer lines with diameters of m (4 - 48 inches.) The CCTV camera must As sewer system networks age, the risk of be assembled to keep the lens as close as possible deterioration, blockages, and collapses becomes a to the center of the pipe. In larger sewers, the major concern. As a result, municipalities camera and lights are attached to a raft, which is worldwide are taking proactive measures to floated through the sewer from one manhole to the improve performance levels of their sewer Systems .
United States Environmental Protection Agency Office of Water Washington, D.C. EPA 832-F-99-031 September 1999 Collection Systems O&M Fact Sheet Sewer Cleaning and Inspection
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