33 31 00
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Sanitary Utility Sewerage Piping
Includes sanitary waste piping systems, with piping, valves, piping specialties, interceptors, separators, and other components serving a facility site or multiple facilities.

33 31 00 Sanitary Utility Sewerage Piping
33 31 13 Public Sanitary Utility Sewerage Piping
33 31 16 Industrial Waste Utility Sewerage Piping