No person shall uncover, make any connections with or opening
into, use, alter or disturb any public sewer or appurtenance thereof
without first obtaining a written permit from the Town.
A separate and independent building sewer shall be provided
for every building constructed after the adoption of this Part 1,
except that, where one building stands at the rear of another on an
interior lot and no public sewer is available or can be constructed
to the rear building through an adjoining public alley, yard, courtyard
or driveway, the building sewer from the front building may be extended
to the rear building and the whole considered as one building sewer.
Where building sewers are to serve multiple dwelling structures, there
shall be provided at least one separate building sewer for each group
of four living units, unless otherwise approved by the Town Board.
Existing building sewers may be used in connection with new
buildings only when they are found on examination and test by the
Inspector to meet all requirements of this Part 1.
[Amended 11-12-1979 by L.L. No. 3-1979]
The building sewer shall be tar-coated, extra heavy or service weight cast-iron pipe conforming to ASTM Specification A-74 and American Standards Association (ASA) Specification A-40.1; asbestos-cement house connection pipe conforming to ASTM Specification C-428, Type II, minimum class 2400; or PVC (polyvinyl chloride) rubber-gasketed joints, ASTM D-3034-73, SDR-35 or any other pipe material equal to the above or better as determined by the Inspector. Joints shall be tight and waterproof in accordance with Article
V, §
102-31. Any part of the building sewer that is located within 10 feet of a water service pipe shall be constructed of extra heavy cast-iron soil pipe with either rubber gasket or leaded joints. Cast-iron pipe with leaded joints may also be required by the Inspector where the building sewer is exposed to damage by tree roots. If installed in filled or unstable ground, the building sewer shall be of cast-iron soil pipe, except that nonmetallic material may be accepted if laid on a suitable concrete bed or cradle as approved by the Inspector. Building sewer pipe shall have a maximum length of five feet between joints for cast-iron or asbestos-cement pipe and 12 1/2 feet for PVC.
The size and slope of the building sewer shall be subject to
the approval of the Inspector, but in no event shall the diameter
be less than four inches, nor shall the slope of the pipe be less
than 1/4 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 and 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 cleanout
and fittings. The ends of building sewers which are not connected
to the building drain of the structure for any reason shall be sealed
against infiltration by a suitable stopper, plug or other Town-approved
means.
In all buildings in which any building drain is too low to permit
gravity flow to the public sewer, sewage or industrial wastes carried
by such drain shall be lifted by Town-approved mechanical means at
property owner's cost and discharged to the building sewer.
[Amended 5-8-1980 by L.L. No. 1-1980]
All excavations required for the installation of a building
sewer shall be open trench work unless otherwise approved by the Inspector.
Pipelaying and backfilling shall be performed in accordance with the
applicable provisions, as required by the Inspector, of Sections 3
through 10 of ASTM Specification C-12, except that no backfill shall
be placed until the work has been reviewed by the Inspector. Unless
otherwise required by the Inspector, each building sewer shall be
installed on a minimum of four inches of run-of-crusher granular material
or other material as approved by the Inspector. This material shall
be thoroughly compacted prior to the installation of the pipe. After
review of the building sewer installation by the Inspector, the building
sewer shall be thoroughly covered to the entire width of the trench
with the same granular material used under the pipe to a height of
at least two inches above the top of the pipe. The trench width measured
at the top of the installed pipe shall not exceed 24 inches.
[Amended 11-12-1979 by L.L. No. 3-1979]
A. All joints and connections shall be made gastight and watertight.
No portland cement or masonry joints will be permitted. Lead joints
for cast-iron pipe joints shall be firmly packed with oakum or hemp
and filled with molten lead not less than one inch deep. Lead shall
be run in one pouring and caulked tight. No paint, varnish or other
coatings shall be permitted on the jointing material until after the
joint has been tested and approved by the Inspector. The transition
joint between cast-iron pipe and other pipe material shall be made
with special adaptors and joint materials approved by the Inspector.
B. Premolded rubber-gasket joints for hub and plain end cast-iron pipe
may be used if approved by the Inspector and shall be a neoprene compression-type
rubber gasket which provides a positive double seal in the assembled
joint. The gasket shall be premolded, one-piece unit, designed for
joining the cast-iron hub and plain end soil pipe fittings. The assembled
joint shall be sealed by compression of the gasket between the exterior
surface of the spigot and the interior surface of the hub. The joint
shall be assembled following the manufacturer's recommendations using
acceptable lubricant and special pipe-coupling tools designed for
that purpose. The plain spigot end shall be forced into the hub end
of the pipe for the full depth of the hub itself. Lubricant shall
be a bland, flax base, nontoxic material and shall not chemically
attach the gasket material.
C. Asbestos-cement pipe joints shall follow the manufacturer's recommendations,
using properly designed couplings and rubber gaskets pursuant to the
published information relating thereto.
D. PVC pipe joints shall be an elastomeric gasket joint. The assembly
of joints shall be in accordance with the pipe manufacturer's recommendations.
[Amended 11-14-1994 by L.L. No. 2-1994]
The connection of the building sewer into an existing public sewer shall be made within five feet of the property line. Except as provided under §§
102-27 and
102-28, if the portion of the building sewer located in the street, right-of-way or easement has not previously been provided, such will be constructed from the existing public sewer to within five feet of the property line by the property owner upon submittal of a proper request by the property owner and upon deposit of the estimated cost thereof. Responsibility for damage to the building sewer shall be borne by the owner. All costs and expenses incident to the installation and connection of the entire length of building sewer, including any portion of the building sewer that may be required to be installed for connection to the service lateral in the street, right-of-way or easement, shall be borne by the owner. The owner shall indemnify the Town from any loss or damage that may directly or indirectly be occasioned by the installation of the building sewer. The method of connection of the building sewer to the public sewer (within five feet of the property line) will be dependent upon the type of pipe material used, and in all cases shall be approved by the Inspector. If the owner fails to connect to the sewer system as provided herein, the Town shall connect such property to the sewer system, and all costs associated with the performance of such work by the Town shall be assessed against the property owner and shall constitute a lien on the property.
All excavations for building sewer installation shall be adequately
guarded with barricades and lights so as to protect the public from
hazard. Streets, sidewalks, parkways and other public property disturbed
in the course of the work shall be restored in a manner satisfactory
to the Town.
When any building sewer is to serve a school, hospital or similar institution or public building or is to serve a complex of industrial or commercial buildings or which, in the opinion of the Inspector, will receive sewage or industrial wastes of such volume or character that frequent maintenance of said building sewer is anticipated, then such building sewer shall be connected to the public sewer through a manhole. The Inspector shall determine if and where this type of connection to the public sewer is required. Connections to existing manholes shall be made as directed by the Inspector. If required, a new manhole shall be installed in the public sewer pursuant to §
102-29 and the building sewer connection made thereto as directed by the Inspector.