Ariz. Rev. Stat. § 49-181
A. Upon achieving the remediation levels and controls determined pursuant to section 49-175, subsection B, an applicant approved pursuant to section 49-174 may request the department to provide a determination that no further action is needed for a site or portion of a site by submitting a report to the department. The report shall include:
4. Whenever institutional or engineering controls are placed on the site:
C. The director shall grant a request for a no further action determination if, after considering any public comments, the director determines that all of the following conditions exist:
E. The department may rescind or amend the determination of no further action under this section and require remedial action pursuant to applicable law for any of the following reasons: