1. (a) The following distances, at a minimum, must be kept around aboveground storage tanks.

   1. (1) 50 ft (15 meters) from the nearest important building as defined by this Chapter;
   2. (2) 50 ft (15 meters) from any fuel dispenser;
   3. (3) 50 ft (15 meters) from the nearest side of a public way; and
   4. (4) 100 ft (30 meters) from any property line that is or might be built upon, including the opposite side of a public way.
2. (b) The distances as set forth in (a) of this may be reduced by 50 percent if the tanks are fire-resistant. The distances as set forth in (a) may be further reduced if the tanks are a fire-protected tank or tanks in vaults as per NFPA 30A-4.3.2.4.
3. (c) A variance may be granted for pre-existing facilities where compliance would be difficult and expensive and the current distances between tanks, property lines or dispensers pose no serious threat to people or property.

Added at 21 Ok Reg 2079, eff 7-1-04

Amended at 22 Ok Reg 1752, eff 7-1-05

Amended at 25 Ok Reg 2187, eff 7-11-08

Amended at 36 Ok Reg 576, eff 8-1-19

Amended at 37 Ok Reg 1143, eff 10-1-20