A.
Permit required for sewer connections.
(1)
No unauthorized person shall uncover, make any connection with or
opening into, use, alter, or disturb any public sewer or appurtenance
thereof associated with the Grahamsville WWTP's sewer system
without first obtaining a permit from the Inspector.
(2)
Prior to issuing any permit for new connections to the Grahamsville
WWTP's sewer system, the Town will forward the connection request
to NYCDEP for review. NYCDEP will review the connection request in
light of the requirements of this chapter and the protection of the
wastewater treatment plant, and will send the results of its review,
in writing, to the Town within 90 days from receiving the connection
request from the Town. No permit for a new connection will be issued
by the Town except with the concurrence of NYCDEP.
B.
Except for extension service area laterals, in either case, a permit application shall be submitted to the Inspector who shall forward the application to NYCDEP for review and approval. The permit application shall be supplemented by any plans, specifications, or other information considered pertinent, in the judgement of DEP. A permit as required under § 36-501A herein shall first be obtained before a sewer lateral permit is issued.
C.
Connections to existing manholes along the Grahamsville WWTP's
sewer mains must be approved by NYCDEP.
A.
New building laterals.
(1)
A separate and independent building lateral shall be provided for
every building requiring sanitary facilities. If it is physically
impossible or economically impractical to provide sewer service to
a particular building using a separate lateral, then, as a last resort,
a shared lateral would be permissible.
(2)
New street laterals and 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 NYCDEP
has approved plans showing the relocation. If relocation is not physically
possible then the lateral shall be:
(3)
All existing manholes in or under the basement shall be sealed airtight
in a manner acceptable to NYCDEP. No new manholes shall be constructed
on the portion of the lateral under the building.
B.
Dry sewers.
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Dry sewers shall be designed and installed in accordance to
this chapter.
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Existing building laterals may be used in connection with new
buildings only when they are found to meet all requirements of this
chapter. NYCDEP shall approve the reuse of any existing laterals.
A.
Building and street lateral pipe materials shall be one of the following:
(1)
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 A112.5.1, except spigot ends shall be plain end,
if gasket joints are used.
(2)
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 five-percent deflection
shall be 46 PSI when tested in accordance with ASTM Specification
D-2412.
B.
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 NYCDEP
where the building or street lateral is likely to be damaged by tree
roots. 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 NYCDEP. 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 NYCDEP. The
size and slope of building and street laterals shall be subject to
approval by the NYCDEP, 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.
C.
The street lateral shall include a full port curb stop with flow-through
diameter equal to that of the lateral. A curb box shall also be installed.
A.
Street lateral to sewer connection.
(1)
At the point of connection of a street lateral to a main sewer, a
standard wye fitting and sufficient one-eighth (forty-five-degree)
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.
(2)
The inside diameter of the fittings shall be same diameter as the
street lateral inside diameter.
B.
Future connection locations; as-built drawings. The street lateral,
including the wye and eighth-bend fittings, shall be connected to
the sewer main, for each proposed lot, as necessary, upon approval
of the proposed development. Laterals installed for future development
shall be fitted a standard plug approved for use by NYCDEP. 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 a 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 a drawing with a minimum of three tie lines indicated.
Four copies of this drawing, showing the as-built location of these
connections, shall be furnished to the Town Engineer who shall forward
them to NYCDEP. No lateral shall be accepted until the NYCDEP approves
the submitted drawings.
C.
Special manhole requirements. When any street lateral is to serve a school, hospital, or similar institution, or public housing, or which, in the opinion of the NYCDEP, 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 may be connected to the public sewer through a manhole. The DEP 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 NYCDEP. If required a new manhole shall be installed in the public sewer pursuant to §§ 36-404 and 36-807 and the lateral connection made thereto as directed by NYCDEP.
A.
Building laterals laid parallel to a bearing wall shall not be installed
closer than three feet to such wall. The building lateral shall enter
the basement through the basement wall no less than 12 inches above
the basement floor. In no event shall any building lateral be placed
below the basement floor, or lower than 12 inches above the basement
floor, except with the expressed written approval of NYCDEP.
B.
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. In building
laterals, said cleanouts shall be provided such that the maximum distance
between cleanouts is 75 feet. The ends of all building or street laterals,
which are not connected to the interior plumbing of 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 NYCDEP.
All excavations required for the installation of a building
or street lateral shall be open trench work unless otherwise approved
by NYCDEP; provided, however, that NYDEP approval shall not be required
in cases where open trench work is not permitted by the New York State
Department of Transportation or Sullivan County Department of Public
Works as to state and county roads. Pipe laying and backfilling, regardless
of pipe material used, shall be performed in general accordance with
paragraphs 3 through 6 of ASTM Specification C-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 not in any case shall such depth be less than four feet. Where
it is physically impossible to provide cover of four feet, the depth
may be reduced to a minimum of two feet, and the pipe shall be insulated,
as approved by NYCDEP.
A.
Watertight joints. All joints and connections shall be made watertight.
B.
Ductile iron mechanical joints. Mechanical joints made of ductile-iron
pipe, or an equivalent type of material, shall be used where separation
distance to a water main or water service is at issue, or where existing
soil conditions warrant. The joint shall be assembled following the
manufacture's recommendations using acceptable lubricant and
any special pipe coupling tools designed for that purpose. The plain
spigot end or cut end shall be inserted full depth into the coupling
with the gasket pushed into the collar joint between pipe and coupling
and the retainer gland securing the gasket in place. The lubricant
shall be a bland, flax-base, nontoxic material, and shall not chemically
effect the gasket material.
C.
Cast-iron push joints. Premolded gaskets may be used for hub and
plain-end, cast-iron pipe joints and joints with fittings, if approved
by NYCDEP. 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 plain-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 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
attack the gasket material.
A.
Building lateral/street lateral connection.
(1)
The connection of the building lateral to an existing street lateral
shall be made, to the extent feasible, at the property line. If a
street lateral has not previously been provided, the street lateral
will be constructed from the existing sewer to the property line,
at the property owner's expense. The street lateral shall be
installed with a properly sealed and covered cleanout to grade at
the property line.
(2)
Except for original service area laterals and extension service area
laterals, the property owner shall pay for the cost of constructing
the lateral from the sewer system up to and including the house connection.
(3)
The property owner shall indemnify the Town and NYCDEP, as appropriate,
from any loss or damage that may directly or indirectly be occasioned
by the installation of the building and street laterals, and any associated
connections and appurtenances.
(4)
As previously noted in § 36-502, NYCDEP shall review and approve all post-extension-project lateral connections to the Grahamsville WWTP's sewer system. After installation of a post-extension-project lateral has been approved by NYCDEP, it shall become the property of the property owner or the Town, as applicable.
B.
Cleanout repair/replacement. If, in the judgment of the Town Engineer,
it is determined that an extension service area lateral or post-extension-project
lateral, without a property line cleanout, needs repair or replacement,
the Town may install a cleanout at the property line, at the property
owner's expense, such that the street lateral can be maintained
independently of the building lateral.
C.
Maintenance, repair and replacement of laterals. Except for original
service area laterals, maintenance of laterals are the responsibility
of property owners. If the Town Engineer finds that the street lateral
is in need of replacement (or repair), it shall be replaced with a
new street lateral with a property line cleanout. The cost of constructing
or repairing the lateral shall be at the property owner's or
the Town's expense, as applicable.
Laterals shall be tested for infiltration/exfiltration by:
A.
Connection inspection. Before a lateral connection is to be made
to a sewer main, the applicant shall notify the Town Engineer and
NYCDEP when the lateral is ready for inspection approval.
B.
Trench inspections. When trenches are excavated for the laying of
lateral pipes to the Grahamsville WWTP's sewer system, such trenches
shall be inspected by the Town Engineer. Before the trenches are backfilled,
the person performing such work shall notify the Town Engineer when
the laying of the building lateral is completed, and no backfilling
of trenches shall begin until approval is obtained from the Town Engineer.
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 Town Engineer. When installation requires
disturbance of paved public roads and shoulders, restoration shall
involve backfilling to road grade. Shortly thereafter the Town or
County Department of Public Works (DPW), or New York State Department
of Transportation (DOT), as applicable, shall complete road and shoulder
restoration to the applicable standards.
A.
Except for original service area laterals, an interior cleanout fitting
shall be provided for each lateral at a readily accessible location,
preferably just inside the basement wall. The fitting shall contain
a forty-five-degree branch with removable plug or test tee, and so
positioned that sewer-cleaning equipment can be inserted therein to
clean the lateral.
B.
The cleanout diameter shall be no less than the lateral's diameter.
For extension service area laterals, all costs associated with
the construction of the lateral from the sewer main to the property
owner's structure shall be borne by the City, and all maintenance
costs associated with that lateral following construction shall be
borne by the property owner. With respect to post-extension-project
laterals, all costs associated with the provisions of this article,
including construction and maintenance, shall be borne by the property
owner. The property owner shall indemnify NYCDEP or the Town as appropriate
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.
It shall be the responsibility of the property owner to cap the service connection of any structure either demolished or destroyed by fire or act of God unless the property owner can verify that he/she has plans to construct another structure with plumbing within six months of the demolition. Such capping must be completed within 60 days of the demolition of any structure. The capping should be done as close to the sewer main as possible, preferably within 20 feet. Notice of intent to cap a service connection shall be provided by the property owner (or its representative) to NYCDEP at least five business days prior to its commencement and shall be subject to inspection by NYCDEP. Costs for capping shall be borne by the property owner unless specified otherwise in any other agreement(s) between the Town and NYCDEP. Failure to comply with this requirement shall constitute a violation of this chapter and shall be subject to appropriate enforcement actions pursuant to Article XII of this chapter.
