Separation Distance [1]
The minimum acceptable distance that must separate storage tanks from property lines, nearby buildings and other tanks. Fire codes [2] require that both underground and aboveground tanks be positioned in accordance with minimum separation distances.
In addition to public-safety considerations, the fire code requirements are intended to reduce the fire exposure of tanks and to ensure adequate space for fighting a fire, should one occur.
Industry recommended practices, such as PEI/RP100 [3], Recommended Practices for Installation of Underground Liquid Storage Systems, also stipulate minimum separation distances between tanks [4], and between tanks and nearby buildings.