1. (a) If the approved remedial action does not include any pilot or feasibility studies, treatment, engineered control, containment, or source removal project, the responsible party shall initiate implementation of the approved remedial action within 90 days following the department’s approval of the remedial action.

2. (b) If the approved remedial action includes any pilot or feasibility studies, treatment system, engineered control, containment, or source removal project, the responsible party shall:

   1. (1) Submit design plans and construction specifications to the department prepared pursuant to Env-Or 606.16 within 90 days following department approval of the remedial action; and
   2. (2) Initiate implementation of the approved remedial action within 90 days following department approval of the design plans and construction specifications.
3. (c) The responsible party shall submit a remedial action implementation report prepared pursuant to Env-Or 606.17 to the department within 90 days following completion of remedial action implementation activities.
4. (d) The responsible party shall submit periodic status reports prepared pursuant to Env-Or 606.18 to the department to monitor the effectiveness of remedial action implementation activities at the frequency specified in the department-approved remedial action.

5. (e) If implementation of the approved remedial action fails to meet performance standards specified in the approved remedial action, if there are changes in site uses and human and environmental receptors, or if implementation of the approved remedial action identifies the need for modification to the design plans and construction specifications approved by Env-Or 606.16, the responsible party shall:

   1. (1) Notify the department in writing; and
   2. (2) Submit recommendations for revising the remedial action, including a schedule of milestones, in a revised remedial action plan to the department for approval.
6. (f) The department shall approve the revised remedial action plan if the revised plan meets the requirements of Env-Or 606.13 and addresses the reason(s) why the original remedial action did not meet the performance standards specified.

Source. (See Revision Note at chapter heading for Env-Or 600) #8812, eff 2-1-07; amd by #9213, eff 7-23-08; ss by #10831, eff 6-1-15; ss by #14419, eff 11-4-25, EXPIRES: 11-4-35