All costs and expenses incident to the installation
and connection of the building sewer shall be borne by the owner.
The owner shall pay for, defend and hold harmless the Town from any
loss, expense or damage that may directly or indirectly be occasioned
by the installation of the building sewer.
The building sewer shall be ductile iron soil
pipe, AWWA C151, thickness Class 52 (2), or equal, or vitrified clay
pipe, ASTM C700, extra-strength or equal, PVC sewer pipe, Class SDR
35, ASTM D3034 or other suitable material approved by the Engineer.
Joints shall be gastight and watertight. Any part of the building
sewer that is located within 10 feet of a water service pipe shall
be constructed of ductile iron pipe. Ductile iron pipe may be required
by the Engineer where the building sewer is exposed to damage by tree
roots. If installed in filled or unstable ground, the building sewer
shall be of ductile iron soil pipe, except that nonmetallic material
may be accepted if laid on a suitable concrete bed or cradle as approved
by the Engineer. All pipe is to be bedded in at least six inches of
gravel, crushed stone or sand. Bedding material is to be placed in
the trench so as to obtain equal support for all sections of the pipe.
The size and slope of the building sewer shall
be subject to the approval of the Engineer, but in no event shall
the diameter be less than four inches. The slope of such four-inch
pipe shall be not less than 1/8 inch per foot nor more than 1/2 inch
per foot.
Whenever possible, the building sewer shall
be brought to the building at an elevation below the basement floor.
No building sewer shall be laid parallel to or within three feet of
any bearing wall, which might thereby be weakened. The depth shall
be sufficient to afford protection from frost. The building sewer
shall be laid at uniform grade and in straight alignment, insofar
as possible. Changes in direction shall be made only with properly
curved pipe and fittings. Where horizontal bends of more than 11 1/4°
are required, cleanouts of a type approved by the Engineer are to
be installed.
In all buildings in which any building drain
is too low to permit gravity flow to the public sewer, sanitary sewage
carried by such drain shall be lifted by approved artificial means
and discharged to the building sewer, and the cost of installing,
maintaining, repairing and replacing such artificial means shall be
paid by the district. The cost of installation, maintenance, repair
and replacement of any artificial means of lifting sanitary sewage
from a building drain to the public sewer, as well as the utility
costs incurred in the operation thereof, which are made necessary
by the construction and installation of building drains subsequent
to the installation of the public sewer shall be paid by the owner
of the premises on which any such building drain is located.
All excavations required for the installation
of a building sewer shall be open trench work unless otherwise approved
by the Engineer. Pipe laying and backfill shall be performed in accordance
with the section of the construction specifications for Sewer District
Nos. 1, 5 and 6 entitled “Excavation, Trenching and Backfilling
for Utilities Systems.”
The connection of the building sewer into an
existing public sewer shall be made at the property line. If a lateral
connection has not previously been provided, the lateral will be constructed
from the existing public sewer to the property line by the Town upon
submittal of a written application by the property owner. The method
of connection of the lateral to the public sewer will be dependent
upon the type of sewer material used and, in all cases, shall be approved
by the Engineer. The cost of constructing said lateral shall be paid
by the district.
Stormwater and all other unpolluted drainage
shall be discharged only to such sewers as are specifically designed
as storm sewers or to a natural outlet approved by the Engineer. Industrial
cooling water or unpolluted process waters may be discharged, upon
approval of the Engineer, to a storm sewer or natural outlet.