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 the Superintendent of 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 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 Systems 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 plumber or sewer layer licensed
by the Examining Board of Plumbers or, any homeowner working on his own single-family
residence.
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 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 back of the curbline
to the sewer main in the street must be of four inches extra heavy cast iron
hub and spigot pipe of Class 2400 cement asbestos pipe in five-foot lengths
and 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 inches extra heavy cast iron hub and spigot pipe
or cement asbestos house connection pipe to be laid in nominal five feet 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. 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. The cement-asbestos joint shall be of the rubber ring type joint.
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 must be installed
and settling tanks 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 500 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. May only 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.
No person shall discharge or cause to be discharged to any public sewer
any of the following described substances, materials, waters or wastes:
A.
Any liquid or vapor having a temperature higher than
150º Fahrenheit (65º centigrade) or in such quantities that the
temperature at the treatment works influent exceeds 104º Fahrenheit (40º
centigrade).
B.
Any waters or wastes which contain grease or oil or other
substance that will solidify or become discernibly viscous at temperatures
between 32º and 150º Fahrenheit.
C.
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.
D.
Any gasoline, benzine, naphtha, fuel oil, or mineral
oil or other flammable or explosive liquid, solid, or gas.
E.
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.
F.
Any garbage that has not been properly comminuted or
triturated.
G.
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.
H.
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 alkalis must be neutralized,
at all times, within a permissible pH range of 5.5 to 9.5.
I.
Any radioactive wastes or isotopes of such half-life
or concentration as may exceed limits established in compliance with state
or federal regulations.
J.
Any water or wastes 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.
K.
Any storm water, 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 refrigerator unit.
(1)
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.
(2)
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 ppm
| |
|
BOD
|
140 to 300 ppm
| |
|
Chlorine demand
|
5 to 15 ppm
|
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.
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
immediately removed.
C.
All portions of the street disturbed must be restored
to their former condition.
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