[Amended 7-3-2013 by Ord. No. 2013-10]
A.
Except
when variations are specifically approved by the Board, all sewer
mains will be eight-inch SDR35 polyvinylchloride (PVC) sanitary sewer
pipe.
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 main and curb shall be considered a part
of the city sewer system and shall be so maintained.
B.
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.
C.
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.
D.
All abandoned service pipes shall be shut off at the
main at the expense of the owner.
E.
All installations of service drains or sewers between
the curb and the building shall be made by a plumbing contractor or
water and sewer installer licensed by the Examining Board of Plumbers
or any homeowner working on his/her own single-family residence.
[Amended 11-7-2012 by Ord. No. 2012-12]
F.
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.
G.
The Board reserves the right to repair any leaking
service pipe without notice and 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.
H.
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.
I.
All Y's 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.
J.
All sanitary services connected to the public mains shall have a
house (building) trap installed between the property line and the
building to prevent sewer gas and other potentially harmful gases
generated in the public mains from entering the building. The house
trap shall be installed as close to the building as possible. The
trap shall be a service-weight, cast-iron, double-hub running trap
with a minimum of four-inch inside diameter. A fresh air inlet shall
be installed on the building side riser of the trap and terminate
at 12 inches above grade with an approved air inlet fitting to allow
the internal vents to draft and remove accumulated gases from the
plumbing system. A brass cleanout cover shall be installed at grade
level on the street side of the trap for cleaning and maintenance
of the trap. A wye, forty-five-degree fitting with riser and brass
cleanout at grade level is required immediately downstream of the
trap to facilitate cleaning between the trap and the public main.
[Added 11-7-2012 by Ord.
No. 2012-12]
A.
Materials used.
[Amended 7-3-2013 by Ord. No. 2013-10]
(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 or SDR35 polyvinylchloride (PVC) sanitary
sewer pipe for installations four-feet to 10 feet deep, and SDR26
PVC sanitary pipe for installations over 10 feet deep 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-diameter extra-heavy cast-iron hub-and-spigot
pipe or SDR35 PVC sanitary sewer pipe (four-inch diameter for single-
to four-family houses and six-inch diameter 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. A watertight rubber-ring-type
gasket designed to hold the spigot end of the pipe in the center of
the hub must be installed at each joint.
[Amended 7-3-2013 by Ord. No. 2013-10]
D.
Sewer pipe, 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 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 clean-out
cap shall be installed in this pipe to facilitate cleaning the service
from the trap to the main.
[Amended 7-3-2013 by Ord. No. 2013-10]
H.
Floor drains. Floor drains may only be connected to
the sanitary sewers to serve kitchens or toilet rooms.
I.
For any service in which any other variety of pipe shall be placed
than that specified in this section or where an opportunity is neglected
to replace service pipes not in compliance with this section with
service pipes compliant with this section, the Board reserves the
right to have the water shut off from said premises until such service
pipes have been installed in accordance with this section.
[Added 7-3-2013 by Ord. No. 2013-10]
The locations 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.).
(2)
Any waters or wastes which contain grease or oil or
other substances 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) 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, plastics, 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 5.5 to 9.5.
(9)
Any cyanides in excess of two parts per million by
weight as CN.
(10)
Any radioactive wastes or isotopes of such half-life
or concentration as may exceed limits established in compliance with
state or federal regulations.
(11)
Any waters or wastes that, for a duration of
15 minutes, have a concentration greater than five times that of normal
sewage, as measured by suspended solids and biochemical oxygen demand,
and/or which are discharged continuously at a rate exceeding 1,000
gallons per minute by special permit.
(12)
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.
(13)
Any waters or wastes containing a toxic or poisonous
substance, a high chlorine demand or suspended solids in sufficient
quantity to injure or interfere with any sewage treatment process,
constitute a hazard to humans or animals or create any hazard in the
receiving waters or the effluent of the sewage treatment plant. Such
toxic substances shall be limited to the average concentrations listed
hereinafter in the sewage as it arrives at the treatment plant, and
at no time shall the hourly concentration at the sewage treatment
plant exceed three times the average concentration. If concentrations
listed are exceeded, individual establishments will be subject to
control in volume and concentration by the Board of Public Works.
See the limits established or from time to time changed by the State
Health Department.
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
(parts per million)
| |
|---|---|---|
|
Suspended solids
|
180 to 350
| |
|
Biochemical oxygen demand
|
140 to 300
| |
|
Chlorine demand
|
5 to 15
|
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
trunk line 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.
A.
The Examining Board of Plumbers may issue a sewer
layer's license to persons engaged in installing or replacing sewers.
B.
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
immediately removed.
C.
All portions of the street disturbed must be restored
to their former condition.
