- (a) DEQ approval required. The DEQ must approve the final closure of a facility before the post-closure period can begin.
(b) Extension of closure period. The DEQ may extend the closure period and require the posting of additional financial assurance if:
- (1) any testing shows the confirmed presence of elevated levels of any constituent;
- (2) any evidence of contamination related to site operations has been found; or
- (3) final closure of the site is found to be inadequate.
Added at 20 Ok Reg 1151, eff 6-1-03