No storage of any kind shall be permitted within any mechanical
equipment, electrical, furnace, or boiler room.
Provisions for secondary containment of spills or leaks shall
be provided for all storage tanks, vessels, or containers containing
flammable, combustible, or other hazardous liquids exceeding five
gallons in quantity within any building or on any premises. Containment
structure or device shall hold 115% of the capacity of the tank, vessel,
or container. Containment shall be constructed of materials that are
compatible to and impermeable by the liquid contained within the tank
or container.