A.
Except when variations are specifically approved by
the Board, all sewer mains will be eight-inch cement-asbestos.
B.
All sewer mains shall be laid according to the Specifications
for the Construction of Sanitary Sewers Connecting to the Sewerage
System of the City of Ithaca, New York, copies of which are obtainable
at the City Engineer's office or from the Superintendent of the Water
and Sewer Division of the Department of Public Works.
C.
All proposed plans and specifications for sewer mains
must be approved by the Board of Public Works and installed under
the supervision and inspection of the Water and Sewer Division of
the Department of Public Works.
A.
The installation of all drains or sewers between the
sewer main and the curb or curbline shall be at the expense of the
owner of the premises served; except that, when a service drain or
sewer of cast-iron or such other material as may hereafter be approved
as permanent shall have been installed at the expense of the owner,
such installation between the main and the curb shall be considered
a part of the city sewer system and shall be so maintained. In the
event, however, that a larger or different service is requested by
the owner or required by reason of the use of the property served,
such larger or different service shall be installed at the expense
of the owner.
B.
All installations of service, drains or sewers between
the main and the curb in the city shall be made only by the Water
and Sewer Division of the Department of Public Works.
C.
All abandoned service pipes shall be shut off at the
main at the expense of the owner.
D.
All installations of service drains or sewers between
the curb and the building shall be made by a plumber or sewer layer
licensed by the Examining Board of Plumbers or any homeowner working
on his/her own single-family residence.
E.
Whenever leaks or breaks occur in the service pipes
or private sewers between the main and the building served, they must
be repaired immediately by the owner or agent of the premises in accordance
with the previous subsection of this section. If repairs are not made
within 15 days after notice of such leak or break, the Board may shut
off the water until such repairs are made.
F.
The Board reserves the right to repair any leaking
service pipe without notice and to charge the expense thereof against
the owner of the premises, to be collected in the manner provided
by the rules and regulations or the provisions of the City Charter
relating thereto.
G.
All lateral or service pipes for public or private
use and all necessary fixtures connected therewith shall be subject
to the approval and laid under the supervision of the Water and Sewer
Division.
H.
All wyes cut into the sewer main will be done by the
Water and Sewer Division, for which the applicant must pay the city
at the time of making application such fees therefor as shall be determined
from time to time by the Board.
A.
Materials used.
(1)
All sanitary sewers (laterals) from the back of the
curbline to the sewer main in the street must be of four-inch extra-heavy
cast-iron hub-and-spigot pipe of Class 2400 cement-asbestos pipe in
five-foot lengths and of such quality as required by the inspector.
No quarter bends or tees shall be used. All such pipe shall be installed
by the Water and Sewer Division inside the city and by a duly licensed
plumber or sewer layer outside the city.
(2)
All sanitary sewer laterals from the curbline to the
building must be either four-inch extra-heavy cast-iron hub-and-spigot
pipe or cement-asbestos house-connection pipe, to be laid in nominal
five-foot lengths (four inches for single- to four-family houses and
six inches for five-family houses and up).
B.
Grade of sewer laterals. All sanitary sewer laterals
must be laid with a fall of not less than 1/8 inch to the foot, unless
otherwise permitted by the inspector, and must be laid true to the
line and grade given by the inspector and must be properly bedded
and tamped.
C.
Cast-iron sewer pipe joints.
(1)
A jute gasket large enough to hold the spigot end
of the pipe in the center of the hub must be rammed into each joint
with an iron hammer. The joints must then be poured and filled with
melted virgin lead and caulked so as to form a neat, even and watertight
joint.
(2)
The cement-asbestos joint shall be of the rubber ring-type
joint.
D.
Sewer pipes, where laid. Sewer pipes must not be laid
in filled ground where there is a possibility of settling. If any
other pipe or conduit is to be crossed by a sewer or lateral, the
matter of adjustment shall be referred to the inspector.
E.
Grease and silt traps. Grease traps and settling tanks
must be installed at such locations in fixtures connected with the
sewer system as it may become necessary to prevent the accumulation
of grease in the sewer main. A fifty-gallon silt trap must be installed
in each stall of a car wash or gas station, and a five-hundred-gallon
baffled settling tank must be installed for up to eight stalls and
for each eight thereafter. These settling tanks and silt traps must
be accessible for inspection and cleaning.
F.
Whenever a sewer lateral has to be replaced or enlarged, it is to be replaced according to Subsection A, at the expense of the property owner.
G.
In all new sewer services and whenever an old service
is dug at or near the trap, a cleanout wye shall be placed in the
line, on the street side of the house trap, with a length of pipe
leading to the surface of the ground or cellar floor. A suitable cleanout
cap shall be leaded in this pipe to facilitate cleaning the service
from the trap to the main.
H.
Floor drains. Floor drains may be connected to the
sanitary sewers to serve kitchens or toilet rooms only.
The location of Y-openings will be furnished
by the Water and Sewer Division. Reasonable care will be taken in
locating Y-openings with accuracy, but accuracy cannot and is not
guaranteed.
A.
No person shall discharge or cause to be discharged
to any public sewer any of the following described substances, materials,
waters or wastes:
(1)
Any liquid or vapor having a temperature higher than
150° F. (65° C.) or in such quantities that the temperature
at the treatment works influent exceeds 104° F. (40° C.).
(2)
Any waters or wastes which contain grease or oil or
other substance that will solidify or become discernibly viscous at
temperatures between thirty-two degrees and one hundred fifty degrees
Fahrenheit (32° and 150° F.).
(3)
Any waters or wastes containing emulsified oil and
grease exceeding an average of 50 parts per million (417 pounds per
million gallons) of ether-soluble matter.
(4)
Any gasoline, benzine, naphtha, fuel oil or mineral
oil or other flammable or explosive liquid, solid or gas.
(5)
Any noxious or malodorous gas, such as hydrogen sulfide,
sulfur dioxide or nitrous oxide, or other substance which, either
singly or by interaction with other wastes, is capable of creating
a public nuisance or hazard to life or of preventing entry into sewers
for their maintenance and repair.
(6)
Any garbage that has not been properly comminuted
or triturated.
(7)
Any ashes, cinders, sand, mud, straw, shavings, metal,
glass, rags, feathers, tar, plastic, wood, paunch manure, hair and
fleshings, entrails, lime slurry, lime residues, beer or distillery
slops, chemical residues, paint residues, cannery waste bulk solids
or any other solid or viscous substance capable of causing obstruction
to the flow of the sewers or other interference with the proper operation
of the sewage system.
(8)
Any waters or wastes, acid or alkaline in reaction,
having corrosive properties capable of causing damage or hazard to
structures, equipment and personnel of the sewage system. Free acids
and alkalies must be neutralized at all times within a permissible
pH range of five point five to nine point five (5.5 to 9.5).
(9)
Any radioactive wastes or isotopes of such half-life
or concentration as may exceed limits established in compliance with
state or federal regulations.
(10)
Any water or waste that, for a duration of 15
minutes, has a concentration greater than five times that of normal
sewage, as measured by suspended solids and BOD, and/or which is discharged
continuously at a rate exceeding 1,000 gallons per minute by special
permit.
(11)
Any stormwater, cistern or tank overflow, cellar
drain or the contents of any privy vault or cesspool or, except as
otherwise provided by the Board and under a permit issued by the Board,
the discharge of effluent from any air-conditioning machine or refrigeration
unit. A fee as established by the Board of Public Works will be charged
for each air-conditioning or refrigeration effluent discharging into
the sanitary sewer.
B.
Normal sanitary sewage shall be construed to fall
within the following ranges at the effluent of the industrial plant
in question:
|
Constituents
|
Permissible Range
| |
|---|---|---|
|
Suspended solids
|
180 to 350 parts per million
| |
|
BOD
|
140 to 300 parts per million
| |
|
Chlorine demand
|
5 to 15 parts per million
|
The end of any sanitary sewer or lateral not
to be immediately used must have a suitable manhole for flushing at
its upper length and at the point where it is connected to the main
trunkline sewer.
No person shall raise or tamper with the cover
of any sewer manhole or deposit thereon any refuse or other materials
without permission from the Board of Public Works.
The city shall have the right to connect with
and use or permit to be used any private sewer built upon any public
grounds.
The Board of Public Works shall have the right
to close or disconnect from any public or private sewer any sewer
constructed or used in violation of the rules and regulations pertaining
thereto. The Board of Public Works shall have the right to enter upon
any public or private property for this purpose.
The Examining Board of Plumbers may issue a
sewer layer's license to persons engaged in installing or replacing
sewers. All sewer mains and services, including cast-iron bell-and-spigot
or cement-asbestos pipe, must be laid by or under the supervision
of a licensed sewer layer or licensed plumber.
A.
The site of the work must be suitably guarded, barricaded
and protected by red lights from sundown to sunrise and by red flags
during the day.
B.
All excavations must be filled and thoroughly tamped
as soon as possible after completion of the work, and all surplus
materials shall be immediately removed.
C.
All portions of the street disturbed must be restored
to their former condition.
