All extensions to the public sanitary sewer
system shall be properly designed in accordance with the Recommended
Standards for Sewage Works, as adopted by the Great Lakes - Upper
Mississippi River Board of State Sanitary Engineers, and in strict
conformance with all requirements of the County Health Department
and/or New York State Department of Environmental Conservation. Plans
and specifications for sewer extensions shall be submitted to and
approval obtained from the Engineer, Ulster County Health Department
and New York State Department of Environmental Conservation before
construction may proceed. The design of sewers must anticipate and
allow for flows from all possible future extensions or developments
within the immediate natural drainage basin area.
If the Town does not elect to construct a sewer extension under public contract, the property owner, builder or developer may construct the necessary sewer extension if this extension is approved by the Town Board in accordance with the requirements of this article. He or they must pay for the entire installation, including all expenses incidental thereto. Each building sewer must be installed and inspected as required by this chapter, and the inspection fees shall be paid. Design of sewers shall be as specified in § 113-19. The installation of the sewer extension must be subject to full-time inspection by the Engineer, and the expenses for this inspection shall be paid for by the owner, builder or developer. The Engineer's decision shall be final in matters of quality and methods of construction. The sewer, as constructed, must pass the exfiltration test required in § 113-21 before it is to be used. The charges to be made for the use of any such sewer extension shall be determined by resolution of the Town Board.
A.
Sewer design shall be in accordance with the following
provisions:
(1)
Pipe: shall be of a type approved by the Engineer.
(2)
Trench widths.
(a)
Trench widths, as measured just above the crown
of the pipe, shall not exceed the following:
|
Pipe Diameter
(inches)
|
Trench Width
| |
|---|---|---|
|
8
|
3 feet 3 inches
| |
|
10
|
3 feet 6 inches
| |
|
12
|
3 feet 9 inches
|
(b)
If the trench widths are found, during field
inspection, to exceed the limits in the above table, the sewer pipe
shall be encased with a minimum of six inches of concrete.
(3)
Pipe shall be firmly and evenly bedded on a minimum
of three inches of No. 1A or No. 1 crushed stone (New York State Department
of Transportation Specification).
B.
Utilizing the above information, design shall then
be made as outlined in Chapter IX of the Water Pollution Control Federation
Manual of Practice No. 9, Design and Construction of Sanitary and
Storm Sewers, as may be amended from time to time.
A.
When required by the Superintendent, the owner of
the property serviced by a building sewer carrying industrial wastes
shall install a suitable control manhole, together with such necessary
meters and other appurtenances in the building sewer to facilitate
observation, sampling and measurement of the wastes. Such manhole
when required, shall be accessibly and safely located and shall be
constructed in accordance with plans approved by the Superintendent.
The manhole shall be installed by the owner at his expense and shall
be maintained by him so as to be safe and accessible at all times.
B.
If there is more than one street lateral serving an
industrial user, the Superintendent may require the installation of
a control manhole on each lateral.
C.
The Superintendent may require that such monitoring
station(s) include equipment for the continuous measurement and recording
of wastewater flow rate and for the sampling of the wastewater. Such
station(s) shall be accessibly and safely located, and the industrial
user shall allow immediate access, without prior notice, to the station
by the Superintendent, or his designated representative.
A.
All sewers shall satisfy requirements of a final infiltration/exfiltration
test before they will be approved and sewage flow from them accepted
by the Town. This test consists of filling the pipe with water to
provide a head of at least five feet above the top of the pipe or
five feet above groundwater, whichever is higher, at the highest point
of the pipeline under test and then measuring the loss of water from
the line by the amount which must be added to maintain the original
level. In the first test, the line must remain filled with water for
at least 24 hours prior to the taking of measurements. Exfiltration
shall be measured by the drop of water level in a standpipe with closed
bottom end or in one of the sewer manholes available for measurement.
B.
When a standard pipe and plug arrangement is used
in the upper manhole of a line under test, there must be some positive
method of releasing entrapped air in the sewer prior to taking measurements.
The test length intervals for either type of test shall be as ordered
approved, but in no event shall they exceed 400 feet. In the case
of sewers laid on steep grades, the length of line to be tested by
exfiltration at any one time may be limited by the maximum allowable
internal pressure of the pipe and joints at the lower end of the line.
The test period, wherein the measurements are taken, shall not be
less than two hours in either type of test.
C.
The total leakage of any section tested shall not
exceed the rate of 100 gallons per mile of pipe per 24 hours per inch
of nominal pipe diameter. For purposes of determining the maximum
allowable leakage, manholes shall be considered as sections of forty-eight-inch
diameter pipe, five feet long. The equivalent leakage allowance shall
be 4.5 gallons per manhole per 24 hours of forty-eight-inch diameter
manholes. If leakage exceeds the specified amount, the necessary repairs
or replacements required shall be made to permanently reduce the leakage
to within the specified limit, and the tests shall be repeated until
the leakage requirement is met.
All sewer extensions constructed at the property
owner's, builder's or developer's expense, after final approval and
acceptance by the Engineer, shall become the property of the Town,
at no cost to the Town, and shall thereafter be maintained by the
Town. Those sewers not installed in public roads shall be installed
in permanent utility easements. Easements shall be acceptable to the
Town Attorney, approved by the Town Board and recorded in the Ulster
County Clerk's office prior to acceptance of the sewer by the Town.
Said sewers, after their acceptance by the Town, shall be guaranteed
by the property owner, builder or developer against defects in materials
or workmanship for 12 months. The guaranty shall be in a form provided
for by the Town. At the sole discretion of the Town, a performance
completion and maintenance bond or certified check may be required
as part of the guaranty.
No builder or developer shall be issued a building
permit for a new dwelling or structure requiring sanitary facilities
within the area serviced by public sewers unless a suitable and approved
method of waste disposal is proposed. All new developments shall be
provided with an approved system of sanitary sewers.
