Part 160 rules require a 5-foot minimum separation distance between tanks, regardless of capacity. How strictly is this enforced and are there exceptions?
A. The OSFM does not require the 5-foot separation distance for smaller capacity tanks, such as waste or fresh motor oil tanks under 1,000 gallons capacity. It should be noted that NFPA Standard #30 requires only 3-foot separation distances, even for large volume storage tanks. It has been the policy of the office to allow the 3-foot separation distance allowed by NFPA #30, if the entire project complies with other NFPA #30 requirements, and if the local fire department indicates no objection to such tank-to-tank spacing. (Such alternatives are usually reserved for the re-installation of tanks at existing tank sites where the pads are already in-place).
The OSFM does not require the 5-foot separation distance for smaller capacity tanks, such as waste or fresh motor oil tanks under 1,000 gallons capacity. It should be noted that NFPA Standard #30 requires only 3-foot separation distances, even for large volume storage tanks. It has been the policy of the office to allow the 3-foot separation distance allowed by NFPA #30, if the entire project complies with other NFPA #30 requirements, and if the local fire department indicates no objection to such tank-to-tank spacing. (Such alternatives are usually reserved for the re-installation of tanks at existing tank sites where the pads are already in-place).
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