The City may, after informal notice to the user in writing or in person or by telephone, revoke the indirect discharge permit and order the suspension of the wastewater treatment service to a user when a user fails to comply with an administrative order issued pursuant to section 10-5-24-6 of this section 10-5-24, or it appears to the City that an actual or threatened discharge: a) presents or threatens an imminent or substantial danger to the health or welfare of persons or substantial danger to the environment; or b) threatens to interfere with the operation of the POTW. Any user notified of the City suspension order shall immediately cease all discharges. In the event of failure of the user to comply with the suspension order, the City may immediately take all necessary steps to halt or prevent any further discharge by such user into the POTW. The City shall have authority to physically cap, block or seal the user's sewer line (whether on public or private property) in order to terminate service under this section. The City shall have the right to enter upon the user's property to accomplish the capping, blocking or sealing of the user's sewer line. The City shall reinstate the wastewater treatment service upon clear and convincing proof by the user of the elimination of the noncomplying discharge or condition creating the threat as set forth in this chapter. (1952 Code § 8-14-24.07)