NR 667.1106(3)(3) Upon completing all repairs and cleanup, notify the department in writing and provide verification, signed by a qualified, registered professional engineer, that the repairs and cleanup have been completed according to the written plan submitted in accordance with sub. (1) (d). NR 667.1106 HistoryHistory: CR 16-007: cr. Register July 2017 No. 739, eff. 8-1-17. NR 667.1107NR 667.1107 Can a containment building itself be considered secondary containment? Containment buildings may serve as secondary containment systems for tanks placed within the building under certain conditions. NR 667.1107(1)(1) A containment building may serve as an external liner system for a tank, provided it meets the requirements of s. NR 667.0196 (1). NR 667.1107 HistoryHistory: CR 16-007: cr. Register July 2017 No. 739, eff. 8-1-17. NR 667.1108NR 667.1108 What shall I do when I stop operating the containment building? When you close a containment building, remove or decontaminate all waste residues, contaminated containment system components (such as liners), contaminated subsoils and structures, and equipment contaminated with waste and leachate, and manage them as hazardous waste unless s. NR 661.0003 (4) applies. The closure plan, closure activities, cost estimates for closure, and financial responsibility for containment buildings shall meet all of the requirements specified in subchs. G and H.