34 of 1925 - Amending Section 1135 and repealing Section 1136, relating to gasoline storage ROLL CALL
VOTING AYE NAY
Barnes % t; Salt Lake City,Utah,_._.._.-..-julp...18. ,192....5.
Burton
Finch I move that the ordinance be passed.
Green
R
Mr. Chairman ''P j
Result AN ORDINANCE
AN ORDINANCE AMENDING SECTION 1135 and repealing Section
1136, Revised Ordinances of Salt Lake City, Utah, 1920, relating
to underground tanks.
Be it ordained by the Board of Commissioners of Salt Lake
City, Utah:
SECTION I. That Section 1135, Revised Ordinances of Salt
Lake City, Utah, 1920, relating to underground tanks, be and the
same is hereby amended to read as follows:
SEC. 1135. LOCATION AND INSTALLkTION OF UNDERGROUND
STORAGE TANKS. Underground tanks used for storage of petroleum,
gasoline, benzine, naphtha, distillate, products of petroleum
or hydro-carbon liquids not of standard flash test shall com-
ply with the following regulations:
No such tanks may be located inside the walls of
any building. Tanks of not to exceed 300 gallons capacity
with permission of the Board of Commissioners may be located
under the sidewalk or beneath the surface in public alleys
or where the space under a sidewalk is excavated and used as
part of basement. Such tanks may rest in such space either
on basement floor or beneath it; provided, that any such tank
resting on or beneath the basement floor must be surrounded
by a brick or concrete wall not less than twelve (12) inches
thick extending from bottom of tank to four (4) feet above
top thereof. The space between top of tank and top of wall
34
-2-
shall be filled with earth which shall be covered with a
layer of concrete at least three (3) inches thick. Where
more than one such tank is installed on any premises, tanks
shall be separated by at least one (1) foot of sand well
tamped in place and no such tanks shall be covered unless
inspection has been made by the Chief of the Fire Department.;
Tops of all such tanks shall be below the lowest pipeline
in the building or structure used in connection with storage
tank.
No underground tank shall have a capacity of more
than 4,000 gallons and not more than four (4) such tanks, or
a total of 16,000 gallons capacity, shall be installed in and
one location. In the event more than one such tank is in-
stalled, then each tank shall be separated from the others
. by at least two (2) feet of sand. No tank shall be closet.
than fifteen (15) feet from any adjoining building, actual
service station structure excepted.
(a) RESTRICTIONS. All tanks located underground
shall have top of tanks at least 4 feet underground and below
any piping to which tanks may be conntected, except, in lieu
of the four feet of earth, tanks may be buried under 42 inches
of earth and a cover of reinforced concrete at least six (6)
inches in thickness which shall extend at least one (1) foot
beyond the outline of the tank in all directions, said con-
crete slab to be set on a firm, well tamped earth foundation.
Tanks shall be securely anchored and weighted in place to
• prevent floating. Tanks shall be set on a firm foundation
and surrounded with soft earth or sand, well tamped into
place or encased in concrete. Tank may have a test well,
provided test well extends to near bottom of tanks, except
when used for fuel oil, and top end shall be hermetically
sealed and locked except when necessarily opened.
(b) CONSTRUCTION. With the exception of existing
i;
I;
_3-
tanks in good condition, all tanks shall be made of galvan-
ized steel, basic open hearth steel, or wrought iron of a
minimum guage U. S. standard, depending upon the capacity or!
size;
Capacity - gallons Min. thickness of material.
1 to 560 14 U.S. standard guage
561 " 1100 12 'r
it 1101 " 4000 • 7 " IT It
(c) VENT PIPES. Underground storage systems shall
be provided with an independent and open vent pipe of a suf-
ficient cross sectional area to permit proper inflow of li-
quid li during the filling operation, but in no case less than
one inch in diameter. Such vent pipe shall run from the top
of such tank to a point outside of the building, and the end
of opening shall be at least twelve (12) feet above the love:
of the source of supply and in a location remote from fire
escapes and never nearer than three (3) feet, measured hori-
zontally and vertically from any window or other openings.
Such vent pipe shall terminate in a "gooseneck" protected in
the outer end by 30x30 mesh (or its equivalent) brass wire
screen. An approved combined vent and filling pipe, so
equipped
q pped and located as to vent the tank at all times, even
during filling operations, may be used. The vent pipes from
two or more tanks may be connected to one upright pipe, pro-
vided they are so connected at a point at least one (1) foot
above the level of the source of supply, and each individual
vent pipe shall be screened between the tank and the upright
pipe.
(d) DRAWING-OFF PIPES. No drawing-off pipe shall
terminate inside any building. When delivery is by gravity,
pipes shall have valves of the approved type and in addition
must have an emergency valve.
(e) PIPES. All pipes sha1.ibe of standard full
weight brass, galvanized iron of/svteelzwith suitable brass
11111
-4-
or galvanized malleable iron or galvanized steel fittings.
Nio rubber nor other packings and no flanges shall be used.
If unions are used, at least one face shall be of brass with
close fitting connical joints. Litherage and glycerine
shellac or other suitable material shall be used on pipe
joints. Piping shall be run as directly as possible without
sag and so located that pipes pitch toward the supply tank
without traps. Provision shall be made for expansion, con-
traction, jarring and vibration. All piping shall be laid
underground and shall be laid outside of building. Openings
for pipes through: outside walls shall be securely cemented
and.made oil tight. Piping must be protected against mechan
ical injury when within five feet of ground level. Cross
connections permitting gravity flow from one tank to another
are prohibited. Except storage tanks may be connected to a
50 gallon tank for the purpose of pumping the liquid.
(f) FILLING PIPE. The end of the filling pipe for
underground storage tanks shall not be within five (5) feet
of any entrance door or cellar opening and shall be set in
approved metal box with cover, and shall be kept looked ex-
cept during filling operations. Such filling pipe shall be
closed by a screw cap. A 30x30 mesh or its equivalent, bras
screen strainer shall be placed in the supply end of such
filling pipe.
(g) DELIVERIES DIRECT. Deliveries of inflammable
liquids shall be made directly to the storage tank thz ugh
the filling pipe by means of a hose or pipe between the fill
ing pipe and the barrel, tank wagon, or tank car from which
such liquid is being drawn.
(h) PUMPS. In all cases, inflammable liquids shal
be drawn from the tanks by pumps so constructed as to preven
leakage or waste splashing, or by some other system approved
by the chief of fire department, with controlling apparatus
and piping so arranged as to allow control of the amount of
discharge and prevent leakage or discharge by any derangemo1
of the system.
-5-
I
1 I (i) TANK CARS. When underground storage tanks are
filled from a railroad tank car, such filling must be by
pump from top of car and not by gravity flow. The said tank
1 car shall be permitted to remain on the track adjacent to
the underground tank for a period of time not exceeding five
hours. A fence eight (8) feet high with gates shall be pro-
vided to isolate tank oar from adjoining cars and the public,
and such enclasure shall be maintained with locks during tim
car remains od ptemises:
• Under no circumstances shall either underground
or overground tanks be permitted in Fire Limits No. 1 of
greater capacity than 1000 gallons each, nor more than :two
I i
such tanks at any one location.
SECTION 2. That Section 1136, Revised Ordinances of
( Salt Lake City, Utah, 1920, be and the same is hereby repealed.
SECTION 3. In the opinion of the Board of Commissioners
it is necessary to the peace, health and safety of the inhabitant1
Iiof Salt Lake City that this ordinance become effective immediately(.
SECTION 4. This ordinance shall take effect upon its '
publication.
-/-71.// '
1 _
Passed by the Board of Commissioners of Salt Lake City,
Utah, this ,'1�;, day of , A.D. 1925.
- ----(:-&--6-et-e-CY.--/-,- --z--- ri,-1
440404"
1 ecorder.
11
i
•
r f
t `'-mil Y- u. - 3q. �►- , .g i r '.,'v L-' ?tt�' •
L'( p ,
n
..1.,
OQ ^'..
/��rt el
lade
k
,, '-
N
(:9
m
r
a) 1
r
•
,
is
r
K
F