|
| |
The site area must be diked to stop the flow of fuel in case of rupture or leakage. The tank may be filled before it
is diked if the situation dictates. Normal procedure is to dike the site area before filling. An erected dike (Figure
2-9) should have the following characteristics:
At least a 10-foot (3.05 meter) working area between the tank and the walls.
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 of the tank).
Walls protected against erosion with sod or stone. Wall height should not fall below 4 feet, 6 inches (1.37
meters).
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 2-12. Tank Site Detail
2-13
|
