89 Installation and Gas Distribution
251
ORDINANCE NO. 8~.
AN ORDINANCE REGULATING THE INSTALLATION, CONSTRUCTION, DESIGN,
MAINTENANCE AND INSPECTION OF GAS DISTRIBUTION AND TRANSMISSION
LINES, AND PROVIDING FOR MIN!MUM STANDARDS AND REQUIREMENTS;
ADOPTING (EXCEPT AS EXCEPTED, ALTERED OR AMENDED BY IDAHO PUBLIC
UTILITIES COMMISSION ORDER NO. ('8) ASA B3l.l.8 - 1955 (SECOND
EDITION) OF THE AMERICAN STANDARDS ASSOCIATION FOR GAS TRANSMISSION
AND DISTRIBUTION PIPING SYSTEMS AND ADOPTING IDAHO PUBLIC UTILI-
fIBS COMMISSION ORDER NO. 98.
BE IT ORDAINED BY THE MAYOR AND CITY COUNCIL OF THE CI TI
OF MERIDIAN, ADA COUNTY, IDAHO.
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The word "gas" as used in this ordinance shall be construed
to mean natural gas, manufactured gas, hydrpcarbon gas or any
mixture of gases produced, transmitted, distributed or furnished
by any gas utility or agency, except liquified petroleum gas as
defined and regulated under Chapter 39, Idaho Session Laws of 1945.
The term "gas installations" as used in this ordinance shall
be construed to mean the installation of all facilities for
producing, transmitting and distributing;gas and all accessory
equipment, appurtenances and appliances necessary for the control
and utilization of gas.
SECTION 2. That Section 8 of the" American Standard Code for
p,ressure Piping, designated as ASA B3l.l.8 - 1955 (Second Edition)
of the American Standards Association for ~as Transmission and
Distribution Piping S~stems, which shall hereafter be designated
as ASA B3l.l.8 - 1955 , being a code, or a set of rules and regu-
lations in ordinance form, regulating the construction and main-;"
tenance of transmission lines for gas to be used in buildings and
structures, and related2to the construction of buildings, and the
said ASA B31.l.8 - 1955 , being of a general and permanent character
printed in book form, as shown by two copies thereof now in -
file in the office of the City Clerk of Meridian, is hereby ratified
and adopted, except as altered or amended by Rules 3 and 4,
Section II, Idaho Public Utilities Order No. 98, 'as hereinafter
set forth, as part of this ordinance regulating such construction
and maintenance of such gas line and system in Meridian.
SECTION 3. That General Order No. 98 of the Idaho Public
Utilities Commission is hereby followed as nearly as practicable
as part of the ordinances of Meridian relating to the installa-
tion and mainte'nance of gas transmission pipe lines and said
general order being followed, with alterations pertaining to
Meridian, as follows: '
SUBSECTION I
GAS PRODUCTION EQUIPMENT
RULE 1. Liquified Petroleum Installation:
Plans for ::installation of such facilities as the total or
partial supply of a piped utility system, subject to the juris-
diction of the Idaho Public Utilities Commission, must bear the
approval of the Commission.
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RULE 2.
In the interest of safety, it is required that those employed
in the operation of such plants understand the properties of
those gases, and that they be thoroughly trained in safe practices
for handli.ng, distribution and operations.
SUBSECTION II
CONSTRUCTION, OPERATION AND MAINTENANCE OF FACILITIES FOR
TRANSMISSION AND DISTRIBUTION OF GAS.
RULE 3.
The application portions of the ASA a3l.l.B - 19552, adopted
by this ordinance, with exceptions and conditions as noted below.
shall constitute the minimum standard applying to the construction
of gas transmission and distribution system.
r- ....... -_
EXCEPTIONS: , ~ . r"~:-
In place of Item 845.51 the followiIig shall be substituj:;edr - -',_ _"_
If the maximum actual operating pressure of the distriDut.ion,~ /". "j_
system is between 2 psig and 60 psig a service regulator hav,ing -:-~.:::'?_
the characteristics listed below shall be used: 'f- " '.
(h) A pressure regulator capable of reducingdistri- ' . ,'_ ~'
bution line pressure (pounds per square inCh) to pres8~es re:" ',"- ,,- - "
commended for household appliance (inch of water colUlllJl)., ~~. . <:-
(b) Single port valve with orifice diameter no ~rea.t~,--~ ,-,
than that recommended by the manufacturer for the maximum. gas -
. . - - .. ,
252 Ordinance No 89 Cont'd.
pressure at the regular inlet.
(c) The valve seat shall be made of resilient material
designed to withstand abrasion of the gas, impurities in gas,
cutting by the valve, and to resist permanent deformation when it
is pressed against the valve port.
(d) Pipe connections to the regulator shall not exceed
2 inches in diameter.
(e) The regulator'Dnlst be of a type that is capable
under normal operating conditions of regulating the down-stream
pressure within the necessary limits of accuracy and of limiting
the build-up of pressure under no-flow conditions ta 50% or less
of the discharge pressure maintained under flow conditions.
(f) A self-contained service regulator with no external
static or control lines.
(g) Suitable protective devices shall be installed to
prevent accidental overpressuring of the customer's appliances
should the service regulator fail. Some of the suitable types
of protective devices to prevent overpressuring of customer's
appliances are:
(1) A monitoring regulator
(2) A relief valve
(3) An automatic shut-off device
These devices may be installed as an integral part of the service
regulator or as a separate unit, and shall be capable of limiting. '.' ,,'.',
the pressure on the consumers lines to such pressures ~s are
allo'l<fable for low pressure distribution systems as defined by
845.J.i';
Item 845.52 not applicable.
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CONDITIONS
Item 861. It shall be interpreted that odorant shall be
added where gas does not naturally possess a distinctive odor to
the extent that its presence in the atmosphere is readily detact-
able at gas concentrations over 20 percent of the concentration
at the lower limit of combustibility.
RULE 4.
In addition to the plans and records as required in co~
pliance with rule 3 above, the following shall also be kept:
(a) A suitable map or maps shall be kept on file in
the City Clerk's Office in Meridian, so as to be convenient for
inspection by Meridian, which maps shall at all times show the size,
character, location and date of installation of each street main,
district regulator, street valve and drip, and when practicable,
e~ch service connection in the corresponding ter~itory served.
in lieu of showing service locations on maps, a card report or
other suitable means may be used.
SUBSECTION III
INSTALLATIONS ON CUSTOMERS PREMISES
RULE 5. (Note: Rule 5 not adopted .as part of this ordinance)
RULE 6.
The gas company shall inspect the customer's installation
prior to the connection of a meter to ascertain that such
installation conforms to the provisioBs contained in Rule 5 of
the Idaho Fublic Utilities Commission and to the Ordinances of
the City of Meridian.
If the installation on the customer's premises does not
meet the requirements, the Company shall refuse to connect the
meter and shall advise the customer in writing the reasons for
such refusal.
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SECTION IV
Note: Rules 7 to 19 relate to powers solely in the Public
Utilities Commission and are not adopted as part of this ordinance.
SECTION 4. The installation, construction and maintenance
of such gas distribution and transmission lines being for the
purpose of _~9PPections to buildin"gs, the enforcement of all.,
ordinance:s' relating thereto is hereby placed within the City Gas
eers _~:fneeof the' City of Meridian. The excavation for such
lin~j. o.pening "or streets and alleys, reconstruction of streets
an~~leya,-~ matters appurtenant thereto, shall be under the
jurisdiction,Qj[ the City Gas Engineer of Meridian.
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Engin-
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:~. __P.ASSEob~ ,!-he .city CO\Ulcil and approved by the M r
City of Nf!r:idJ..im, Ada County, Idah~, this lith da o.ti
l.9.5.,"[. /.. .~
. ~~i~":Clerk . ....... .. M~~m
of the
July.
,