- a) Fill pipes shall be extended to a location outside of any building, as remote as possible from any doorway or other opening into any building, and in no case closer than 5 feet from any such opening. Remote fills are subject to approval by OSFM, on a case by case basis. Fill pipes for used oil tanks are permissible when located inside buildings.
- b) Location shall be in a place where there is a minimum danger of breakage from trucks or other vehicles and adequate collision protection to protect against physical damage shall be provided.
- c) For new and existing facilities, each fill pipe shall be closed by a gasketed screw cap or other tight fitting gasketed cap of a type that can be locked. It is the responsibility of the owner/operator to maintain the security of the UST.
- d) Each loading pipe or fill pipe riser shall be identified by color code or labeling to indicate the product contained in the tank.
- e) All remote fills installed after May 1, 2003 shall be double-wall and constructed of noncorrosive material or cathodically protected, except for gravity flow used oil.
- f) After May 1, 2003, any new installation with a remote fill over 20 feet in length shall have interstitial monitoring and an audible and visible overfill alarm. Remote fills shall be sloped back to the tank.
- g) Beginning February 1, 2008, on all new installations where non-metallic piping is used for a remote fill, a grounding station shall be installed and used during delivery.
- h) Except for USTs holding used oil, all tanks shall be equipped with a drop tube that extends to within 6 inches of the bottom of the tank.
(Source: Amended at 47 Ill. Reg. 6837, effective May 2, 2023)