Or. Rev. Stat. § 466.780
(1) Upon petition by the owner and the permittee of an underground storage tank, the Environmental Quality Commission may grant a variance from the requirements of any rule or standard adopted under ORS 466.746 if the commission finds:
(2) The commission may grant a variance under subsection (1) of this section only if the commission finds that strict compliance with the rule or standard is inappropriate because:
[1987 c.539 §22]