The owner shall maintain full service in the existing sewer system continuously.
No discharge of sewage to a point outside the system shall be permitted at
any time.
[Amended 3-19-1997 by L.L. No. 5-1997]
A Y-branch and sewer lateral extending to the edge of the right-of-way
or beyond shall be installed for each lot. A hardwood stake extending from
the sewer to the ground surface shall be installed at the end of each sewer
lateral before backfilling. A record drawing depicting the exact location
of these lateral stub ends shall be prepared during construction. The end
of the sewer lateral shall be sealed with an approved stopper manufactured
for the purpose and the stopper shall be wedged in place with stone or masonry
before backfilling. The sewer lateral shall eventually be connected to the
building it serves before the Town approves the building construction. The
sewer lateral shall be a minimum 10 feet from any water service (horizontal).
A.
It is the intention of these construction standards to
secure a system with a minimum amount of infiltration. To check the amount
of infiltration, the Town of Milton shall require infiltration/exfiltration
tests or low pressure air tests, depending upon the existing site condition.
These tests must be completed before house services are connected to the system.
B.
Infiltration tests. Infiltration testing is an acceptable
leakage test only when the groundwater level is suitably higher than the pipe.
The owner shall furnish and maintain a V-notch sharp crested weir in a wood
frame tightly secured in the sewer system at the locations directed by the
Town. The maximum allowable infiltration shall be 200 gallons per mile, per
inch of diameter of sewer main, per twenty-four-hour day at any time. The
period of testing shall be a minimum of one hour.
C.
Exfiltration tests.
(1)
Exfiltration testing is an acceptable leakage test only
in dry areas or when the groundwater level is suitably low. The owner shall
furnish and maintain the necessary plugs, stoppers, water supply and measuring
devices at locations required by the Town Engineer. All openings in the section
of the system to be tested shall be securely stopped and the section filled
with water to provide a minimum of two feet of head over all sewers in the
section or two feet higher than the groundwater level, whichever is higher.
(2)
After filling, the system shall be allowed to stand a
minimum of 12 hours before conducting the tests. The maximum allowable exfiltration
shall be 50 gallons per mile, per inch diameter of the sewer, per twenty-four-hour
day at any time. The maximum internal pressure at the lowest point may not
exceed 10 pounds per square inch (psi).
D.
Low pressure air tests. The owner shall furnish and maintain
the necessary plugs, fittings, gauges and pumping systems at locations directed
by the Town of Milton. The duration of the testing shall be determined by
the Town of Milton Engineer from Table 2.31, taken from UNI-BELL recommended
practice for low pressure air testing of installed sewer pipe.[1] The prescribed pressure drop shall not exceed 0.5 psi from 3.5
psi to 3.0 psi in excess of the groundwater pressure above the top of the
pipe.
[1]
Editor's Note: Said table is on file in the Town offices.
E.
Deflection tests. Sewers must be straight between manholes
and shall be tested for straightness by flashing a light from manhole to manhole,
by lamping or by other suitable means. The Town of Milton Engineer may also
require other types of deflection testing where construction encountered unstable
trench walls or bottoms, heavy rainfall, frozen soil, high groundwater levels,
deep lines or improper compaction.
A.
Building sewer.
(1)
The building sewer is defined as extending from the stub
end of the sewer lateral within the public right-of-way to the start of the
building drain. The building drain is considered to begin at a point five
feet outside the foundation wall.
[Amended 3-19-1997 by L.L. No. 5-1997]
(2)
The building sewer shall be laid at a depth sufficient
to afford protection from frost and at a uniform grade of 1/4 inch per foot
(or about 2%). Special permission may be given to use a lesser grade, which
in no case shall be less than 1/8 inch per foot (or about 1%).
(3)
No building sewer shall be laid within three feet of
and parallel to any bearing wall.
(4)
Necessary changes in direction shall be made only with
properly curved pipe and fittings. Ninety-degree bends are not acceptable.
Two forty-five-degree bends connected with a one-foot nipple or a ninety-degree
long sweep must be installed where needed.
(5)
Cleanouts extending up to ground level (to grade) must
be spaced not more than 100 feet apart along the building sewer and shall
be installed at all bends. The cleanout on the building drain must extend
to a point at least three inches above final grade. All cleanouts shall be
installed such that the cleanout opening is in a direction opposite to the
direction of flow in the sewer.
[Amended 3-19-1997 by L.L. No. 5-1997]
(6)
Certain commercial and industrial sewer connections may
be required by the Town of Milton to incorporate a grease trap. The type and
details of grease trap installation shall be as specified by the Code Enforcement
Officer.
[Amended 3-19-1997 by L.L. No. 5-1997]
B.
Building drain.
(1)
The building drain is defined as starting at the end
of the building sewer five feet outside the foundation wall extending into
the building.
[Amended 3-19-1997 by L.L. No. 5-1997]
(2)
All building drains shall include a four-inch cleanout,
a double hand hole building trap (or running trap) installed inside the foundation
wall and a three-inch fresh air inlet to the outside.
(3)
The building trap shall be located as close to the foundation
wall as possible. No connections shall be made downstream of this trap.
(4)
Basement facilities require a backwater valve on the
main building drain. As an alternate, a smaller backwater valve may be installed
on each separate basement connection to the building drain, such as on washing
machines, sinks, toilets, etc.
(5)
Where the building drain is located under the basement
floor, all cleanout risers shall be extended to raise the cleanout plugs up
to the level of the basement floor.
C.
Planning sewer connections.
(1)
Where possible, the sewer connection should be made directly
in front of the building, and in no case should the building sewer cross other
property without special permission given in writing by the other property
owner.
(2)
In the course of providing municipal sewage service,
if the existing septic tank is not removed, but abandoned, it must be pumped
out. Pumping of septic tanks shall not be discharged into the public sewer
system. Metal septic tanks must be filled with compacted gravel or sand prior
to inspection by the Code Enforcement Officer. Concrete tanks may be left
as is and used for sump pump outlets. All building sewer piping must be bypassed
around the abandoned septic tank.
[Amended 3-19-1997 by L.L. No. 5-1997]
(3)
Before any work is started on a building sewer connection,
a permit from the Code Enforcement Officer must be obtained. Commercial and
industrial sewer connections must be described by a plan approved by the Code
Enforcement Officer before a permit is issued.
[Amended 3-19-1997 by L.L. No. 5-1997]
A.
Sewer mains, building sewer pipe and fittings.
(1)
All standard sewer mains and fittings shall not be less
than eight inches:
|
PVC plastic pipe
Polyvinylchloride
|
Minimum diameter and strength: 8-inch, SDR 35
| |
|---|---|---|
|
Pipe and fittings: D2241-78
| ||
|
Joints: Integral bell elastomeric gasketed
|
(2)
All standard building sewer pipe and fittings shall be
not less than six inches:
|
PVC plastic pipe
Polyvinylchloride
|
Minimum diameter and strength: 6-inch, SDR 35
| |
|---|---|---|
|
Pipe and fittings: D2241-78
| ||
|
Joints: Integral bell elastomeric gasketed
|
(3)
If a change in pipe type is made at the property line,
an approved adapter must be used.
B.
Building drain pipe and fittings. All building drain
pipe and fittings shall conform to the requirements of the New York State
Uniform Fire Prevention and Building Code applicable to plumbing, including
latest revisions.[1]
C.
Connection to existing public sewer main.
(1)
Except in rare occasions, there will be a building sewer
already provided for extension to the building drain. However, it may sometimes
be necessary for the property owner to connect to the existing public sewer
main and construct the entire building sewer from there to the building drain.
(2)
Such connections to the public sewer main may involve
special construction, such as sewer taps and risers and will be approved by
the Code Enforcement Officer on a case-by-case basis.
[Amended 3-19-1997 by L.L. No. 5-1997]
D.
Connection to existing building sewer.
(1)
Connection of a new building sewer to an existing building
sewer shall be made watertight in an acceptable manner.
(2)
The standard connection shall utilize the standard pipe
fitting (or manufacturer's recommended adapter) designed to join the type
of pipes involved.
(3)
The alternate connection, when joining pipes of different
material, shall utilize a virgin PVC donut by Fernco Joint Sealer Company,
or approved equal, or a virgin PVC coupling with stainless steel clamping
bands by Fernco Joint Sealer Company, or approved equal.
E.
Cleanouts to grade.
(1)
All cleanouts to grade shall use a four-inch minimum
diameter raiser, topped with a four-inch cleanout plug (raised square head
design). The cleanout plug shall be installed using pipe thread compound.
Joints in the cleanout riser must be rubber-gasketed or caulked lead and oakum.
No cemented joints are allowed.
(2)
All building drain cleanouts shall use a cast-iron or
PVC combination Y (wye) and one-eighth-inch bend (long turn pattern only)
at the base in the drain with the cast-iron or PVC cleanout riser extending
vertically to a point at least three inches above final grade.
[Amended 3-19-1997 by L.L. No. 5-1997]
(3)
When they are required, the type and details of all building
sewer cleanouts must be approved by the Code Enforcement Officer.
[Amended 3-19-1997 by L.L. No. 5-1997]
F.
Fresh air inlet.
(1)
Fresh air inlet pipe shall be three-inch-diameter cast
iron, copper or plastic.
(2)
The fresh air inlet shall terminate outside the building.
The open end shall be protected by a bugproof plate or cap, permanently fixed
in the mouth of the pipe, with an open ventilating area at least equal to
the area of the inlet pipe.
G.
Backwater valve. All backwater valves, whether installed
in the main building drain or in separate connections to the building drain,
shall incorporate a cleanout and be of a type approved by the Code Enforcement
Officer.
[Amended 3-19-1997 by L.L. No. 5-1997]
H.
Sewage pump stations. All sewage pump or lift stations
shall be the type and manufacture as specified by the Saratoga County Sewer
District 1. The design, placement and installation of each station must be
approved and inspected by the Town of Milton Engineer.
