A. No tank for the storage of any flammable, liquid shall be located closer than three feet to any other such tank.
B. For tanks above fifty thousand gallons individual capacity for the storage of any flammable liquid, except crude petroleum, the distance between such tanks shall not be less than one-half the diameter of the smaller tank.
C. Tanks for the storage of crude petroleum having capacities not exceeding one hundred twenty-six thousand gallons (three thousand barrels) shall not be less than three feet apart. Tanks having a capacity in excess of one hundred twenty-six thousand gallons (three thousand barrels) shall not be less than the diameter of the smaller tank apart.
D. The minimum separation between a liquefied petroleum gas container and any other tanks for the storage of any flammable liquids shall be twenty feet. Means shall be taken to prevent the accumulation of flammable liquids under adjacent liquefied petroleum gas containers such as by diking, diversion curbs, or grading, subject to the approval of the inspector. When flammable liquid storage tanks are diked, the liquefied petroleum gas containers shall be outside the diked area and at least ten feet away from the centerline of the dikes. The foregoing provision shall not apply when liquefied petroleum gas containers of one hundred twenty-five gallons or less capacity are installed adjacent to Class III flammable liquid storage tanks of two hundred seventy-five gallons or less capacity.
E. When tanks are in a diked area containing Class I or II liquids, or in the drainage path of Class I or II liquids, and are compacted in three or more rows or in an irregular pattern, greater spacing or other means may be required to make inside tanks accessible for fire fighting purposes.
(Ord. 90-08-1074 § 4 (part))