Section R. 299.4446 - Type II landfill engineering plans; closure plansRule 446.
(1) Effective October 9, 1993, the owner and operator of a type II landfill shall prepare detailed engineering plans and an engineering report that describes the steps necessary to close all units of the type II landfill at any point during its active life in accordance with the closure performance standards of these rules. The closure plan shall include all of the following information: (a) An overall description of the methods, procedures, and processes that will be used to close each unit of the landfill in accordance with this rule.(b) An estimate of the maximum extent of operation that will be open at any time during the active life of the landfill.(c) An estimate of the maximum inventory of wastes ever on-site over the active life of the landfill.(d) A description of the final cover, including engineering plans and specifications.(e) A schedule for completing all activities that are necessary to satisfy the final cover requirements of these rules.(2) Any modifications to an approved closure plan shall be approved by the director.(3) A copy of the most recent approved closure plan shall be kept at the facility or at an alternate location that is designated by the owner and operator until closure of the landfill has been certified in accordance with the provisions of R 299.4921 and the owner and operator have been released from the requirements for closure.Mich. Admin. Code R. 299.4446