Section 170.546  UST Restrictions at Service Stations

a)         Service station storage shall be underground and the capacity of any single compartment of an underground storage tank for petroleum shall not exceed 20,000 gallons unless approved by the OSFM. 

b)         The total aggregate storage at service stations of petroleum shall be limited by the ability to achieve and maintain clearances to basements, sewers, property lines and special classes of property, in accordance with Sections 170.420 and 170.422, and clearance between tanks is a minimum of 24 inches for all tanks installed after May 1, 2003.

(Source:  Amended at 27 Ill. Reg. 8164, effective May 1, 2003)