Section 175.APPENDIX A UST Activity that Cannot Proceed Without an OSFM Inspector on Site

In addition to obtaining a permit pursuant to 41 Ill. Adm. Code 175.300, the UST activities listed in this Appendix A will require that the inspection be scheduled with OSFM as an OSI, meaning under circumstances where the work cannot proceed in the absence of having an STSS on site. (See Section 175.320, regarding scheduling of UST activity.) Proceeding without completion of the required OSFM inspection is a violation of OSFM rules.

Removal of a UST or UST system, or removal of over 20 feet or 50% of the total piping run or an entire underground pipe run

Abandonment-in-place, tanks or piping

UST hot work/tank entry (if cutting or penetration of tank shell or work capable of providing a source of ignition or heat is involved) (See definition of "hot work" at 41 Ill. Adm. Code 174.100)

Lining and lining inspection

Installation of a UST or UST system, or installation of over 20 feet or 50% of the total piping run or an entire underground pipe run (See Section 175.320(c))

(Source: Amended at 48 Ill. Reg. 12838, effective August 7, 2024)