(b) Activities to be recorded and maintained include, at a minimum:
- (1) Any demonstration, certification, finding, monitoring, testing, or analytical data required;
- (2) Closure and post-closure care plans, cost estimates, and any monitoring, testing, financial assurance records, or analytical data;
- (3) Any other records required by this part; and
- (4) All records and schedules shall also be available for review.