During construction or installation, the owner or operator shall ensure that liners and cover systems such as membranes, sheets, or coatings are inspected for uniformity, damage, and imperfections such as holes, cracks, thin spots, or foreign materials. Immediately after construction or installation, the owner or operator shall have the liners inspected and certified as meeting the requirements of Regulation .17-2 of this chapter by an independent qualified registered professional engineer. The owner or operator shall maintain the certification required by §B of this regulation at the facility as part of the facility operating record. After installation, the owner or operator shall: Inspect liners and covers to ensure tight seams and joints, and the absence of tears, punctures, or blisters; and Maintain a record of the results of the inspection. Inspection During Operation. While a drip pad is in operation, the owner or operator shall inspect drip pads weekly and after storms to detect evidence of any of the following: Deterioration, malfunction, or improper operation of run-on and run-off control systems; Presence of leakage within and proper functioning of leak detection systems; and Deterioration or cracking of the drip pad surface. If deterioration or leakage is detected, the owner or operator shall comply with the requirements of Regulation .17-2I of this chapter.