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2-2.1 Typical TPT Overall Plot Plan - Cont'd .
extinguishing foam (see 2-4.13a) should be located next to each tank berm. Small covered shelters for housing the
kevlar fire fighting clothing and extra fire fighting supplies should be built at central, easily accessible locations around
the TPT. The 20-lb. hand-held fire extinguishers should be distributed and located at each pump, operating and fuel
dispensing area. Personnel must be aware of the location of all fire fighting equipment at all times-in order to prevent
confusion in an emergency. Easily seen signs flagging the locations of fire extinguishers would be appropriate.
2.2 Fuel Module Plot Plans
a.
Due to varying site conditions, material availability and operational situations, a single typical plot plan for the
fuel modules in a TPT cannot be stipulated. Several alternative typical plot plans have been prepared for the most likely
cases. With modifications by the installation group in the field as necessary, these typical plans should be helpful
towards establishing an actual plot plan for most field situations encountered.
b.
The most important information to consider when examining the plot plans is the relative spacing between major
components in the fuel modules. Distances shown are relative to a common point (i.e., the edge of a 5,000 bbl
collapsible tank). By setting the tank locations, the rest of the layout is defined, although some variation will occur due to
uneven terrain, obstacles which must be bypassed (such as large rocks or trees) and small differences in the length-of
the hose sections caused by specification length tolerances. If layout changes are made, it is most important that the
valve logic of the system remain unchanged. If the relationships between valves are changed, the operating instructions
provided in this manual must be changed accordingly, and all operating personnel notified.
c.
Figures 2-3a and 2-3b concern plot plans where, due to limited site space or a shortage of proper berm material,
pairs of 5,000 bbl tanks share a common berm between two tanks.
d.
Figures 2-4a, 2-4b, 2-5a and 2-5b concern plot plans for situations where there is enough space and/or enough
berm material available for each 5,000 Bbl tank to have an individual berm on all sides. Figures 2-4a and 2-4b are the
ideal situation. There is enough area available to spread the tanks and equipment as far apart as the hoseline will allow
within the fuel modules. Figures 2-5a and 2-5b show a layout with the minimum recommended spacing between the
5,000 Bbl tanks (i.e., 50 feet). Like Figures 2-3a and 2-3b, this is a situation where the area available for the TPT
modules is at a minimum.
e.
The location of the 5,000 bbl tanks and their berms are the controlling factors in selecting a TPT site and layout.
If pairs of tanks must have a common berm wall, a cleared and leveled area approximately 215 ft. x 115 ft. is required
for each pair of tanks. (If sandbags are used to construct the berm, the area is approximately 190 ft. x 100 ft.) If the
tanks have individual berms, the area required for the tank/berm measures approximately 115 ft. x 115 ft.
(approximately 100 ft. x 100 ft. if sandbags are used). See Section III, paragraphs 3-3 through 3-7.3 for site and berm
preparation guidelines.
f.
Besides the selection of level ground, if possible, another important factor in choosing tank location is the
elevation of the tank relative to the rest of the module. To allow for the possibility of the receipt of extraordinary high
vapor pressure fuel, it is preferable to keep the tanks and the pump wheel base at about the same level to maximize the
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