The size, slope, alignment, materials of construction, and the methods
to be used in excavating, placing of the pipe, jointing, testing,
and backfilling the trench shall all conform to the requirements of
the applicable building and plumbing codes, these Rules, and other
applicable Town ordinances. In the absence of code provisions or in
amplification thereof, the materials and procedures set forth in appropriate
specifications of the NEIWPCC Technical Report #16 (Guide for the
Design of Wastewater Treatment Works) and ASCE/WPCF Manual of Practice
No. FD-5 (Gravity Sanitary Sewer Design and Construction) shall apply.
All such connections shall be made gastight and watertight.