Any permit to operate issued pursuant to this chapter may be revoked during its term upon one or more of the following grounds:
(a) That an unauthorized release has occurred pursuant to subsection (b) of Section 11-1-16;
(b) That modifications have been made to the underground storage tank or facility in violation of the permit to operate;
(c) That the holder of the permit has violated one or more conditions upon which the permit has been issued. (Ord. No. 1043, § 1 (part).)