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` . 1994 UNIFORM FIRE CODE APPENDIX II -F
APPENDIX II -F
PROTECTED ABOVEGROUND TANKS FOR MOTOR VEHICLE
. FUEL - DISPENSING STATIONS OUTSIDE BUILDINGS
(See U.F.C. Sections 5202.3.1 and 5202.4.1)
SECTION 1 — SCOPE
Storage and dispensing of motor fuels into the fuel tanks of motor vehicles from protected above-
ground tanks located outside buildings shall be in accordance with Appendix II -F.
SECTION 2 — DEFINITIONS
For the purpose of Appendix II -F, certain terms are defined as follows:
FUEL DELIVERY SYSTEM is a system which consists of a tank vehicle containing a pump,
fill hose with appropriate connections, and a person who performs the tank filling operation of
transferring fuel from the tank vehicle to an aboveground tank. The two types of fuel - delivery sys-
tems for aboveground tanks are as follows:
2.1 PRECONNECTED FLEXIBLE HOSE SYSTEM is , uel - deliv , y system containing a .
reel - mounted preconnected flexible hose having a m. I urn no /al diameter of 2 inches
(50.8 mm) and a manually controlled fuel -deliv ry • •.z.le at the d• nstream end of the hose.
2.2 RIGID HOSE SYSTEM is a fuel-del cr 4 to utilizing 1, or more sections of large
diameter rigid hose [usually 3 to 4 in . s ( 6.2 > 0 i i ) in nominal diameter) which
does not contain a nozzle but which c- wins interl i ,'t ;• connec,i •ns for manually connect-
ing the hose from the tank vehicle t0 e tank.
PRIMARY TANK is a listed aboveground atmosp , - ric to ' I s �'( o store -! 1 . See tuition
of PRIMARY CONTAINMENT in Section 217. / /, /
PROTECTED ABOVEGROUND TANK is a listed tank system co s stir f a primary tank
provided with protection from physical damage, and tire - resistive protectio rom a high - intensity
liquid pool lire exposure. The tank system is allowed to provide these protection elements as a unit
or is allowed to be an assembly of components, or a combination thereof.
SECTION 3 — PERMITS AND PLANS
A permit is required to install, operate, repair or modify protected aboveground tanks used for stor-
age and dispensing of flammable or combustible liquid motor fuels.
The installation plans shall be submitted with permit applications. The plans shall include the
design, details, and specifications of the following:
3.1 Quantities and types of liquids to he stored;
3.2 Distances from tanks and dispensers to property lines and buildings;
3.3 Vehicle access;
3.4 Fire appliances;
3.5 Vehicle impact protection;
3.6 Protected aboveground tanks and their supports; , ,,
3.7 Method of storage and dispensing;
3.8 Overfill prevention, spill containment, vents, vapor recovery, dispensers, and other equip-
ment and accessories;
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,, APPENDIX II -F 1994 UNIFORM FIRE CODE
. 3.9 Seismic design in accordance with the Building Code; •
3.10 Secondary containment;
3.11 Venting;
3.12 Piping;
3.13 Electrical systems;
3.14 Emergency controls; and
3.15 Other information as required by the chief.
SECTION 4 — TANK DESIGN
4.1 General. Protected aboveground tanks shall be listed and shall meet the requirements of
U.F.C. Standard A II - F - 1.
4.2 Primary Tanks. Primary tanks shall be designed in accordance with Section 7902.1.8.2.1.
4.3 Size. Primary tanl s shall not exceed a 10,000- gallon (y 854 L) individual or 40,000 - gallon
(151 416 L) aggregate capacity.
4.4 Vents.
4.4.1 Capacity. The vent capacity reduction factor as provided for in Section 7902.2.6.3.4 shall
not be allowed. .
4.4.2 Flame arresters. Approved flame arresters shall be installed in normal vents.
4.5 Projectile Protection. When a projectile test is required by the chief, the protected tank shall
be tested in accordance with The requirements for bullet resistance as specified in Section
7702.3.4.3.
SECTION 5 — INSTALLATION OF TANKS •
The installation of protected aboveground tanks shall be in accordance with the following:
5.1 Separation Distances. A protected aboveground tank shall be separated from property lines,
important buildings, public ways and other tanks in accordance with Table A- II -F -1.
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TABLE A- II -F -I— MINIMUM SEPARATION REQUIREMENTS
FOR PROTECTED ABOVEGROUND TANKS
MINIMUM DISTANCE FROM MINIMUM DISTANCE FROM THE MINIMUM
PROPERTY LINE WHICH IS OR CAN NEAREST S DE OF ANY PUBLIC WAY DISTANCE
BE BUILT UPON, INCLUDING THE OR FROM T E NEAREST IMPORTANT BETWEEN
INDIVIDUAL TANK CAPACITY OPPOSITE SIDE OF A PUBLIC WAY BUILDING N THE SAME PROPERTY TANKS
'gallons (liters) feet (mm) feet (mm) feet (mm)
Less than or equal to 6.000 15 (4572) 5 (1524) 3 (914)
• (22 712) •
Greater than 6,000 50 (15 240) I 25 (7620) 3 (914)
(22 712)
EXCEPTION: Where there are pra i a' t '!lfficulti ! in roviding tank design as specified in Section 4
above, the•chief may approve the use of u n1 r• ected tanks provided that the tanks are located in such a manner
that the distances are equal to, or greater t Ian, the distances required for protected tanks greater than 6,000
gallons (22 710 L) as specified in Table A- H.F -I. Unprotected tanks containing Class I motor fuels shall not
exceed a 6,000 - gallon (22 710 L) individual or 18,000- gallon (68 130 L) aggregate capacity, unprotected
tanks containing Class (I or III - liquids may be of' greater capacity as approved by the chief. For the purposes
of these distances, the aggregate quantity of all product(s) shall be considered.
NOTE: For tanks and dispensers located at commercial, industrial, governmental orinanufacturing estab-
lishments, and intended for fueling vehicles used in connection with their business, refer to Table 7902.2 -F.
s ". ilplll Cln. R'• ]'i.O ®wR .1lgl -. T . . _ ..
1994 UNIFORM FIRE CODE APPENDIX II -F
5.2 Total Quantity. Protected aboveground tank installations shall not exceed 40,000 gallons
(151 416 L) aggregate capacity of primary tanks. Tank installations having the maximum allowable
aggregate capacity shall be separated from other installations of protected aboveground tanks by •
not less than 100 feet (3048 mm).
5.3 Secondary Containment. Protected aboveground tanks shall he provided with drainage con-
trol or diking in accordance with Sections 7901.8 and 7902.2.8 or with secondary containment that
is a component of the listed protected tank system. Secondary containment systems shall be moni-
tored either visually or automatically. Enclosed secondary containment systems shall be provided
with emergency venting.
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(Text continues on page 1-433.)
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1994 UNIFORM FIRE CODE APPENDIX II -F
5.4 Vehicle Impact Protection. Guard posts or other approved barrier protection shall be sepa-
rately provided for each protected aboveground tank and for connected piping subject to vehicle
impact. The design of guard posts shall be in accordance with Section 8001.9.3. Also see U.F.C.
Standard A- II -F -1, Section 2.7.2.
5.5 Overfill Prevention. Protected aboveground tanks shall not be filled in excess of 90 percent
• of their capacity. An overfill prevention system shall be provided for each tank. During tank filling
operation, the system shall:
1. Provide an independent means of notifying the person filling the tank that the fluid level has
reached 85 percent of. tank capacity by providing an audible or visual alarm signal, providing a tank
level gage marked at 85 percent of tank capacity, or other approved means, and
2. Automatically shut off the flow of fuel to the tank when the quantity of liquid in the tank reach-
es 90 percent of tank capacity. For rigid hose fuel - delivery systems, an approved means shall be
provided to empty the fill hose into the tank after the automatic shutoff device is activated.
A permanent sign shall be provided at the fill point for the tank documenting the filling procedure
and the tank calibration chart. The filling procedure shall require the person filling the tank to deter-
mine the gallonage required to fill it to 90 percent of capacity before commencing the fill operation.
5.6 Fill Pipe Connections. The fill pipe shall be provided with a means for making a direct con-
nection to the tank vehicle's fuel - delivery hose so that the delivery of fuel is not exposed to the open
air during the filling operation. When any portion of the fill pipe exterior to the tank extends below
the level of the top of the tank, a check valve shall be installed in the fill pipe not more than 12 inches
(304.8 mm) from the fill hose connection. See Section 7901.11.4 for tank valves.
5.7 Spill Containers. A spill container having a capacity of not less than 5 gallons (18.9 L) shall
be provided for each fill connection. For tanks with a top fill connection, spill containers shall be
noncombustible and shall be fixed to the tank and equipped with a manual drain valve which drains
into the primary tank. For tanks with a remote fill connection, a portable spill container shall be
provided.
5.8 Signs. Warning signs and identification signs shall be installed to clearly identify hazards. The
design of such signs shall be in accordance with Sections 5201.8 and 7901.9. Conspicuous signs
prohibiting simultaneous tank filling and fuel dispensing shall be posted.
SECTION 6 — INSTALLATION OF DISPENSING AND PIPING SYSTEMS
6.1 General. Dispensing and piping systems and electrical controls shall be installed in accord-
ance with Section 7901.11 and Article 52, except as provided in Appendix Sections 6.2, 6.3 and 6.4.
6.2 Tank Openings. Tank openings in protected aboveground tanks shall be through the top only.
6.3 Dispensing Devices. Dispensing devices are allowed to be installed on top of or immediately
adjacent to protected aboveground tanks.
6.4 Antisiphon Devices. Approved antisiphon devices shall be installed in each external pipe
connected to the tank when the pipe extends below the level of the top of the tank.
SECTION 7 — PARKING OF TANK VEHICLES
Tank vehicles shall not be parked within 25 feet (7620 mm) of a protected aboveground tank.
EXCEPTION: When the tank is being filled from the tank vehicle.
SECTION 8 — MAINTENANCE
Protected aboveground tanks, piping and dispensing systems shall be maintained in a safe operating
condition. Protected aboveground tanks and components of dispensing systems shall be maintained
in accordance with their listings.
Damage to protected aboveground tanks shall be repaired using materials having equal or greater
strength and fire resistance.
1-433
1994 UNIFORM FIRE CODE 7902.2 -F- 7902.2 -G
TABLE 7902.2 -F— REFERENCE TABLE FOR USE IN
TABLES 7902.2 -A, 7902.2 -B AND 7902.2 -D
. MINIMUM DISTANCE FROM '
PROPERTY LINE OF PROPERTY MINIMUM DISTANCE FROM NEAREST
WHICH IS OR CAN BE BUILT UPON, SIDE OF ANY PUBLIC WAY OR FROM
INCLUDING THE OPPOSITE SIDE OF NEAREST IMPORTANT BUILDING ON
TANK CAPACITY (gallons) A PUBLIC WAY (feet) THE SAME PROPERTY (feet)
• . x3.785 for L x304.8 for mm
. 275 or less 5 5
276 to 750 10 5
• 751 to 12,000 15 5
12,001 to 30,000 20 5
' 30,001 to 50,000 30 10
50,001 to 100,000 50 15
100,001 to 500,000 80 25
500.001 to 1,000,000 100 35
1,000,001 to 2,000,000 135 45
2,000,001. to 3,000,000 165 55
3,000,001 or more 175 60 • .
TABLE 7902.2 -G— MINIMUM SEPARATION (SHELL -TO- SHELL) OF
TANKS CONTAINING STABLE LIOUIDS
(See Section 7902.2.3.1) .
MINIMUM SEPARATION
� I TANK DIAMETER (feet)
Fixed Roof Tanks
304.8 for mm Floating Roof Tanks Class I or II Liquids Class III Liquids
Not over 150 ---t suns of a djacent ^1 16 sum of adjacent 1 /6 sum of adjacent
tank diameters hut tank diameters but tank diameters but
not less than 3 feet not less than 3 feet not less than 3 feet
(914.4 mm) (914.4 mm) (914.4 mm)
More than 150
If remote impoundin is in accordance 1 /6 sum of adjacent 1 /.i SUM of adjacent 1 /6 sum of adjacent
with Section 7902.2.8.2 tank diameters tank di.irieters tank diameters .
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If impounding is within dikes around 1 / 4 sum of adjacent 1 /3 sum of adjacent I /4 sum of adjacent
tanks in accordance with tank diameters tank diameters tank diameters i
Section 7902.2.8.3
_ :Crude petroleum tanks having individual capacities not exceeding 126.t100 ctallons (3,001) barrels) (47691 t) L), when
located at production facilities in isolated locations, need not he separated b, more than 3 teet (914.•1 mm).
=Tanks used for storing Class III -B liquids are allowed to be spaced 3 feet (914. -1 mm) apart unless within a diked area
or drainage path for a tank storing Class I or II liquid.
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