No unauthorized person shall uncover, make any connection with or opening
into, use, alter or disturb any public sewer or appurtenance thereof without
first obtaining a written permit from the Superintendent.
No person shall discharge or cause to be discharged any stormwater,
surface water, groundwater, roof runoff, subsurface drainage, cooling water
or unpolluted industrial waters to any sanitary sewer. Swimming pool drains
shall not be connected to any sanitary sewer.
A. There shall be two classes of sewer lateral permits:
(1) For residential, commercial and institutional service.
(2) For service to establishments producing industrial wastes.
B. In either case, a permit application shall be submitted to the Superintendent. The permit application shall be supplemented by any plans, specifications or other information considered pertinent in the judgment of the Superintendent. A fee, established by §
132-122, shall accompany the application.
A. A separate and independent building lateral shall be
provided for every building requiring sanitary facilities. When, however,
there is a building behind a front building, the second building may use the
front building's building lateral if there is no other way to provide
sanitary service to the back building.
B. New street laterals and/or building laterals shall not
go under building basements. In like fashion, a building shall not be constructed
over an existing lateral; the lateral shall be relocated after the Superintendent
has approved plans showing the relocation. If relocation is not physically
possible then the lateral shall be:
(1) Exposed and totally encapsulated in not less than three
inches of concrete; or
(2) Exposed and walled and the building rooms above positively
ventilated outdoors.
C. All existing manholes in or under the basement shall
be sealed airtight in a manner acceptable to the Superintendent. No new manholes
shall be constructed on the portion of the lateral under the building.
When building laterals are to serve multiple dwelling structures, the
building lateral shall be sized in accordance with the metered water use and
with sound professional engineering judgment.
When a lateral sewer is to serve a complex of industrial, commercial,
institutional or dwelling structures, special design of the building lateral
system shall be required. Plans and specifications shall be prepared and submitted
for approval pursuant to this Part 2.
Dry sewers shall be designated and installed in accordance to this Part
2.
Existing building laterals may be used in connection with new buildings
only when they are found, on examination by the Superintendent, to meet all
requirements of this Part 2.
Building and street lateral pipe materials shall be one of the following:
A. Tar-coated, service grade, cast-iron soil pipe conforming
to ASTM Specification A-74, Cast Iron Pipe and Fittings. All dimensions, weight
and markings of the pipe shall conform to the requirements of ANSI Designation
A-112.5.1, except spigot ends shall be "plan end," if gasket joints are used.
B. Polyvinyl chloride (PVC) pipe and fittings conforming
to ASTM Specification D-3034-73, SDR-35 Polyvinyl Chloride (PVC) Sewer Pipe
and Fittings. All pipe shall be suitable for gravity sewer service. Provisions
shall be made for contraction and expansion at each joint with a rubber ring.
The bell shall consist of an integral wall section stiffened with two PVC
retainer rings which securely lock the solid cross-section ring into position.
Minimum pipe stiffness (F/Y) at 5% deflection shall be 46 psi when tested
in accordance with ASTM Specification D-2412.
C. Any part of the building or street lateral that is located
within five feet of a water main or water service shall be constructed of
cast-iron soil pipe. Cast-iron soil pipe may be required by the Superintendent
where the building or street lateral is likely to be damaged by tree root.
If installed on fill or unstable ground, the building or street lateral shall
be of cast-iron soil pipe, although other pipe material may be permitted if
such pipe is uniformly supported on a poured concrete cradle approved by the
Superintendent. The distance between consecutive joints, as measured along
the center line of the installed pipe, shall not be less than 10 feet, except
under abnormal circumstances, in which case this dimension may be diminished
if approved by the Superintendent. The size and slope of building and street
laterals shall be subject to approval by the Superintendent, but in no event
shall the internal pipe diameter be less than four inches, nor shall the pipe
slope be less than 1/4 inch per foot.
At the point of connection of a street lateral to a main sewer, a standard
wye fitting and sufficient 1/8 (45°) bend fittings shall be used. The
wye fittings shall be installed so that flow in the "arm" shall transition
smoothly into the flow in the public sewer. No lateral connection shall be
made to the public sewer which permits the flow into the public sewer from
the lateral to enter at right angles.
The street lateral, including the wye and 1/8 bend fittings, shall be
connected to the main sewer at the time of constructing the main sewer, for
each proposed lot for either immediate or future development. Laterals installed
for future development shall be fitted with a standard plug approved for use
by the Superintendent. All sewer connections shall be via a properly installed
saddle on the main sewer pipe. No portion of the lateral pipe shall protrude
into the main sewer pipe. The location of all lateral connections shall be
field-marked with two-inch by six-inch corrosion- and rot resistant board.
The marker board shall extend from the depth of the lateral to a minimum of
two feet above grade. The location of all lateral connections shall be indicated
on the drawing, and four copies of this drawing, showing the as-built location
of these connections, shall be furnished to the Superintendent. No sanitary
sewer shall be accepted by the town until four copies of this record drawing
have been so filed with the Superintendent and the Superintendent has approved
the submitted drawings.
When any street lateral is to serve a school, hospital or similar institution, or public housing, or is to serve a complex of industrial or commercial buildings, or which, in the opinion of the Superintendent, will receive wastewater or industrial wastes of such volume or character that frequent maintenance of said building or street lateral is anticipated, then such street lateral shall be connected to the public sewer through a manhole. The Superintendent 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 Superintendent. If required, a new manhole shall be installed in the public sewer pursuant to §§
132-33 and
132-103, and the lateral connection made thereto as directed by the Superintendent.
Whenever possible, the building lateral shall be brought to the building
at an elevation below the basement flow. Building laterals laid parallel to
a bearing wall shall not be installed closer than three feet to such wall.
The building lateral 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. Changes of direction of 90° or greater shall
be made with a cleanout which extends to grade, terminating in a terminal
box set in concrete. The ends of all building or street laterals, which are
not connected to the interior plumbing or the building, for any reason, shall
be sealed against infiltration by a suitable stopper, plug or by other approved
means.
In all buildings in which any building drain is too low to permit gravity
flow to the public sewer, wastewater carried by such drain shall be lifted
by mechanical means and discharged to the building lateral, on approval of
the Superintendent.
All excavations required for the installation of a building or street
lateral shall be open trench work unless otherwise approved by the Superintendent.
Pipe laying and backfilling, regardless of pipe material used, shall be performed
in general accordance with Paragraphs 3 through 6 of the ASTM Specification
CC-12, except that trench width, measured at the top of the installed pipe,
shall not exceed the outside pipe diameter, plus 14 inches, and except that
no backfill shall be placed until the work has been inspected. The depth of
cover over the pipe shall be sufficient to afford protection from frost, but
in no case shall such depth be less than four feet.
All joints and connections shall be made watertight.
Poured joints for cast-iron pipe shall be firmly packed with oakum or
hemp, and the annulus filled with an approved compound not less than one inch
deep. Said compound shall be run in with a single pouring and caulked tight,
if appropriate for the compound used. No paint, varnish or other coatings
shall be permitted on the jointing material until after the joint has been
tested and approved. The transition joint between cast-iron pipe and other
pipe materials shall be made with special adapters and jointing materials
approved by the Superintendent. If such joints are hot-poured, the material
shall not soften sufficiently to destroy the effectiveness of the joint when
subjected to a temperature of 160° F., nor be soluble in any of the wastes
carried by the lateral.
Premolded gaskets may be used for hub- and plan end cast-iron pipe joints
and joints with fittings, if approved by the Superintendent. The gasket shall
be a neoprene compression-type unit which provides a positive seal in the
assembled joint. The gasket shall be a premolded, one-piece unit, designed
for joining the cast-iron hub and plan end soil pipe and 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 plan 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.
Joints for PVC sewer pipe shall follow the manufacturer's recommendations, using properly designed couplings and rubber gaskets pursuant to the published information relating thereto, and conforming to the applicable ASTM specification identified in §
132-51.
A. The connection of the building lateral to an existing street lateral shall be made at the property line. Except as provided under §§
132-28 and
132-29, if a street lateral has not previously been provided, the street lateral will be constructed from the existing public sewer to the property line by a licensed plumber at the owner's expense. The street lateral shall be installed with a properly sealed and covered cleanout to grade located at the property line. The cleanout shall terminate in a metal box imbedded in concrete.
B. The cost of constructing the street lateral from the
existing public sewer to the property line shall be at the owner's expense;
all subsequent costs and expense incidental to the installation and connection
of the building lateral shall also be borne by the owner.
C. The owner shall indemnify the town from any loss or damage
that may directly or indirectly be occasioned by the installation of the building
lateral.
D. It shall be the responsibility of the property owner
to maintain, repair or replace the building lateral, as needed.
E. The method of connection of the building lateral to the
street lateral will be dependent upon the type of sewer pipe material and,
in all cases, shall be approved by the Superintendent. After the installation
of the street lateral has been approved by the Superintendent, the new street
lateral shall become the property of the town. Any subsequent repairs to the
new street laterals shall be made by the town at the town's expense.
If, in the judgment of the Superintendent, it is determined that a building
lateral without a property line cleanout needs repair or replacement, the
town may install a cleanout at the property line, at the owner's expense,
such that the street lateral can be maintained independently of the building
lateral.
Any existing street lateral which, upon examination by the Superintendent,
is determined to be in need of replacement will be replaced with a new street
lateral with a property line cleanout. The replacement street lateral shall
be constructed by a licensed plumber. Once the replacement street lateral
and cleanout have been constructed and approved by the Superintendent, the
new street lateral shall become the property of the town. Any repairs to the
new street laterals shall be made by the town at the town's expense.
The street lateral, building lateral or the combined lateral shall be
tested for infiltration/exfiltration by:
B. By a suitable joint method with the prior written approval
of the Superintendent.
The applicant for the building lateral permit shall notify the Superintendent when the building lateral is ready for inspection and connections to the street lateral is to be made. The connection shall be made under the supervision of the Superintendent. When street laterals are installed pursuant to §
132-19, the property owner, builder or developer shall notify the Superintendent when the street lateral is ready for inspection and connection to the main sewer, and such connection shall be made under the supervision of the Superintendent.
When trenches are excavated for the laying of building lateral pipes or for laying of street lateral pipes pursuant to §
132-19, such trenches shall be inspected by the Superintendent. Before the trenches are backfilled, the person performing such work shall notify the Superintendent when the laying of the building lateral is completed, and no backfilling of trenches shall begin until approval is obtained from the Superintendent.
All excavations for constructing building laterals shall be adequately protected 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 Superintendent. When installation requires disturbance of paved public roads and shoulders, restoration shall involve backfilling to road grade. Shortly thereafter the Town Department of Public Works (DPW) shall complete road and shoulder restoration to the town's standards. The cost for such final road and shoulder restoration by the DPW shall be included with the fees paid with the application for the permit required in §
132-45.
A. An interior cleanout fitting shall be provided for each
building lateral at a readily accessible location, preferably just inside
the basement wall. The fitting shall contain a forty-five-degree branch with
removal plug or test tee and be so positioned that sewer cleaning equipment
can be inserted therein to clean the building lateral.
B. The cleanout diameter shall be no less than the building
lateral diameter.
All costs associated with the provisions of this article shall be borne
by the property owner unless specifically stated or agreed to be a cost borne
by the town. The property owner shall indemnify the town from any loss or
damage that may be directly or indirectly occasioned by the installation of
the building and street laterals and connections and appurtenances.