“Unusual operating condition” means any condition, equipment deficiency, or occurrence that results in a release of a regulated substance, indicates the possibility of a system leak, or creates a reasonable expectation that a system leak is imminent. Examples of unusual operating conditions are listed in Env-Or 406.04(b).

Source. (See Revision Note #1 at chapter heading for Env-Or 400) #10393, eff 9-1-13; ss by #12643, eff 10-10-18 (formerly Env-Or 402.59) (See Revision Note #2 at chapter heading for Env-Or 400)