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TM 10-5430-232-12&P
(3) Berm Construction. The site area must be bermed to stop the flow of fuel in case of rupture or
leakage. An erected dike (Figure 4-7) should have the following characteristics:
(a) At least a 104oot (3.05 meter) working area between the tank and the walls.
(b) Walls 5 feet, 6 inches (1.68 meters) high (high enough for the internal volume to be 1-1/2
times greater than the volume oft he tank).
(c) Walls protected against erosion with sod or stone. Wall height should not fall below 4 feet, 6
inches (1.37 meters).
(d) A drain pipe and valve at the low end of the site to remove accumulated rain water. The
drain should normally be kept closed. It can be opened as needed.
Figure 4-7. Berm Construction
4-9
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