Each school shall maintain the following records for a minimum of 10 years and make them available if requested by the Department or MSDE: Sampling plan that includes the location and types of all drinking water outlets; Names and responsibilities of all individuals and/or laboratories involved in sampling and testing; Records related to sampling and testing, including date, type of sample, and results; Immediate actions taken, by whom, and dates; Remedial action plan and documented actions; Records related to lead-free plumbing; Records related to bottled water; and Waiver requests, supporting documentation, and the Department’s decision regarding the waiver.