As used in this article, the following terms shall have the
meanings indicated:
AREA DRAINS
Conduits or conveyances that direct clear water away from
any area within a building or on a property.
BACKFILL
Material placed in trench from the top of the bedding to
the finish grade or sub base of pavement.
BUILDING DRAIN
The lowest horizontal piping of a building drainage system
which receives the discharge from waste, and other pipes inside the
walls of the building, and conveys it to a point approximately five
feet outside the foundation wall of the building.
BUILDING PERMIT
Permission from the Township to undertake plumbing repairs
and repairs to the private lateral connection to the municipal sewage
collection system.
CLEAR WATER
All stormwater, rainwater, surface water, groundwater, roof
runoff, snow melt, or subsurface discharge.
CONTRACTOR
A professional person skilled and experienced in repair and
replacement of private lateral sewer connections.
DOWNSPOUTS
Gutters or similar drains from rooftops that convey clear
water away from the structure.
FINAL INSPECTION
The final visual inspection of the private lateral by means
acceptable to the Township.
FOG
Fats, oils, and grease.
FOUNDATION DRAINS
French drains, perimeter drains, or similar feature installed
for the purpose of draining clear water away from building foundations
and slabs.
I&I
Infiltration and inflow means any source or occurrence of
clear water transmission into the sanitary sewage collection system.
MINIMUM STANDARDS
Conditions set forth as the minimum actions to demonstrate
adequate documentation of I&I reduction measures including maintenance,
inspections, and repairs to private lateral connections to the municipal
sewage collection system.
NOTICE OF VIOLATION
Official written correspondence from the Township notifying
a property owner that they are not in compliance with the conditions
set forth in this article.
PRIVATE LATERAL
The segment of the sanitary sewer system located on private
property and extending into a public right-of-way or public property
that connects a residence or business to the main sanitary sewer collection
system. The private lateral will include the entire length of the
connection from the house to the municipal sewage collection system.
PROPERTY
Any real property located in Nether Providence Township.
PROPERTY OWNER
Any individual, entity, partnership, business, corporation,
company, or other such similar entity.
ROOF LEADERS
Gutters or similar drains from rooftops that convey clear
water away from the structure.
SANITARY SEWER SYSTEM
Piping, lines, sewers, and connection thereto transporting
wastewater within the Township to a destination for sanitization and
treatment.
STORMWATER
All rainwater, surface water, groundwater, roof runoff, snow
melt, or subsurface discharge.
SUMP PUMP
A pump installed in a pit or depression to pump clear water
out of a basement (most typical) but can apply to pumping clear water
away from any part of a structure or area or property.
TOWNSHIP-CERTIFIED CONTRACTOR
A contractor who has completed training sponsored by the
Township from time to time, which training the Township developed
in consultation with the Pennsylvania Plumbing, Heating and Cooling
Contractors Association regarding the methods of sewer lateral inspection.
[Added 4-11-2019 by Ord.
No. 809]
TWO-WAY CLEANOUT
A triangular-shaped fitting that enables pipe lateral cleanout
in both directions.
VENT CAP
A tight-fitting cap that can be used to seal the necessary
vents associated with private lateral plumbing. The vents shall be
manufactured to fit on the type of pipe used in the plumbing and shall
provide a tight seal against inflow of stormwater under extraordinarily
high precipitation conditions. The vent cap should be set at least
six inches above grade to preclude stormwater flow into the vent.
If the vent caps are located at the curbline or in the driveway apron
or sidewalk, they must be flush with the finished grade and tightly
sealed.
VISUAL INSPECTION
Televising or visually tracing the source of a clear water
connection to the sanitary sewer.
The private lateral must be maintained to meet the following
minimum requirements:
A. The private lateral shall be kept free from roots, grease deposits,
and other solids which may impede the flow or obstruct the transmission
of waste.
B. All joints shall be tight and all pipes shall be sound to prevent
exfiltration by waste or infiltration by groundwater or stormwater.
C. The private lateral pipe shall be free of any structural defects,
cracks, breaks, rodent holes, or missing portions, and the grade shall
be uniform without sags or offsets.
D. No area drains, foundation drains, roof leaders, sump pumps or other
direct connections that allow stormwater or groundwater into the private
lateral will be allowed.
E. The private lateral shall have a two-way cleanout located approximately
at the property line or, in the case where the private lateral is
all within private property, in a location approved by the Township
Engineer. All cleanouts shall be securely capped with an approved
cap at all times, except during maintenance activities, to prevent
the inflow of surface water.
F. The private lateral shall be free of any material that obstructs
or prevents the effective maintenance or normal operation of the building
sewer lateral or the public sewer main.
G. Property owners and food service operators are required to control
the discharge of fats, oils, and grease (FOG) into the sanitary sewer
system from their properties or food service establishments, and not
cause or contribute to FOG-related sanitary sewer overflows, blockages,
or increased maintenance in the sanitary sewer systems.
There are several acceptable methods for repairing or replacing
a private lateral. These include open cut, slip lining, cured-in-place
(CIPP), pipe bursting, etc. The Township engineer should be contacted
for the method most appropriate for the situation.
A. Replaced portions of private lateral lines within the street right-of-way
shall be constructed in accordance with the Plumbing Code.
B. Cleanouts shall be constructed, located, and floodproofed in accordance
with the Plumbing Code.
C. Vents shall be constructed, located, and floodproofed in accordance
with the Plumbing Code.
D. Replaced portions of private lateral lines not within the street
right-of-way shall be constructed in accordance with the Plumbing
Code.
E. If possible it is recommended that private lateral connection be
installed at a slope of 1/4 inch per foot.
F. Private lateral lines are to have four to six inches of bedding beneath
the pipe. Bedding material is to be No. 8 or No. 12 crushed limestone.
G. Private lateral lines are to be backfilled with a minimum of six
inches of No. 8 or No. 12 crushed limestone over the top of the pipe.
H. Private lateral connections under road surfaces or other paved surfaces
are to be backfilled with No. 8 or No. 12 crushed limestone to finish
grade of the roadway. Backfill under PennDOT-maintained roads shall
be in accordance with PennDOT specifications. The road surface is
to be repaired in accordance with the PennDOT or Township specifications.
I. All connections, with the exception of slip-lined pipe, to the sanitary
sewer mains are to be made with a watertight PVC SDR 35 or cast iron
"wye" or "tee" saddle.
Neoprene rubber seals should be used for the transition from
the "wye" or "tee" fitting to the sewer main.
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J. Connections to slip-lined pipe can be made using a tapping saddle.
The tapping saddle shall be installed in a neatly tapped hole cut
into the slip-lined pipe.
K. Manhole connections for private lateral lines are to be installed
as follows:
(1) Manholes are to be core drilled.
(2) A flexible pipe to manhole connector shall be used in the connection
of the sanitary sewer pipe to the manhole. The connector assembly
shall be the sole element relied on to assure a flexible, watertight
seal of the pipe to manhole.
(3) Nonshrink grout is to be placed on the inside of the manhole, in
the area between the pipe and the outside diameter of the bore opening.
(4) Internal drop connections are prohibited.
L. If the private lateral line is to be installed using a trenchless
method to avoid open-cutting the existing pavement, prior approval
by the Township Engineer is required.
M. This standard references ASTM test methods, which are made a part
hereof by reference and shall be the latest edition and revision thereof.
(1) ASTM F1216 — Standard Practice for Rehabilitation of Existing
Pipelines and Conduits by the Inversion and Curing of a Resin-Impregnated
Tube.
(2) ASTM F1743 — Standard Practice for Rehabilitation of Existing
Pipelines and Conduits by Pulled-in-Place Installation of Cured-in-Place
Thermosetting Resin Pipe (CIPP).
(3) ASTM D5813 — Standard Specification for Cured-in-Place Thermosetting
Resin Sewer Piping Systems.
(4) ASTM C1208/C1208M-11 — Standard Specification for Vitrified
Clay Pipe and Joints for Use in Microtunneling, Slip Lining, Pipe
Bursting, and Tunnels.
(5) ASTM F714-12a — Standard Specification for Polyethylene (PE)
Plastic Pipe (DR-PR) Based on Outside Diameter.