All extensions to the sanitary sewer system
owned and maintained by the Village 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 New
York State Department of Health. Plans and specifications for sewer
extensions shall be submitted to, and approval obtained from the Engineer
and New York State Department of Health before construction may proceed.
The design of sewers must anticipate and allow for flows from all
possible future extensions or developments within the immediate drainage
area.
Sewer extensions, including individual building sewer laterals to the property line, may be constructed by the Village under public contract if, in the opinion of the Village Board, the number of properties to be served by such extension warrants its cost. Under this arrangement, the property owner shall pay for and install the building sewer from the property line to his residence or place of business in accordance with the requirements of Article
IV. Thereafter, each property owner served by the extended public sewers will be charged at the full service charge rate as outlined in Article
VIII. Property owners may, in accordance with applicable laws, propose sewer extensions within the Village by drafting a written petition, signed by a majority of the benefiting property owners, and filing it with the Village Board.
If the Village 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 Village 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 §
151-30. The installation of the sewer extension must be subject to full-time inspection by the Village Engineer, and the expenses for this inspection shall be paid for by the owner, builder or developer. The Village 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 §
151-32, before it is to be used. The cost of the sewer extension thus made shall be absorbed by the developers or the property owners and thereafter the property owners will be subject to a sewer-service charge proportional to their use of trunk sewers and treatment plants and their proportion of operational and maintenance costs as outlined in Article
VIII.
Sewer design shall be in accordance with the
following provisions.
A. Pipe shall be of a type approved by the Village Engineer.
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. 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).
C. Pipe thickness and field strength shall be calculated
on the following criteria:
(3) Weight of soil: 120 pounds per cubic foot.
(4) Wheel loading: 16,000 pounds.
D. 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.
Manholes shall be constructed at all changes
in slope alignment or at intervals not exceeding 400 linear feet.
The manholes shall be constructed with a poured 3,000 pounds per square
inch concrete base, steel troweled concrete or mortar inverts and
precast four-foot diameter concrete manhole barrel sections and a
tapered top section. The manhole frame and cover shall be the standard
design of the Village and shall be set with no less than two courses
of brick underneath to allow for later adjustment in elevation.