A. Tanks shall rest directly on the ground or on foundations or supports of gravel, concrete, masonry, piling, or steel, designed and installed in accordance with Title 15 of this code. Supports for tanks storing Class I, II, or III-A liquids shall be of concrete, masonry, or protected steel.
B. Tank foundations shall be elevated, level, and larger in diameter than the tank itself.
C. Exposed piling or steel tank supports shall be protected by fire-resistive materials to provide a fire-resistance rating of not less than two hours.
D. Tank supports and connections shall be designed and installed to resist damage as a result of seismic activity.
E. Stairs, platforms, and walkways shall be non-combustible and constructed in accordance with Title 15 of this code, and D.O.G., A.P.I., O.S.H.A, and California Division of Industrial Safety standards.
F. Stairs, platforms and walkways in existence prior to the effective date of the ordinance codified in this title shall have a period of five years to come into compliance with the provisions of this section.
(Ord. 90-08-1074 § 4 (part))