From time to time and at least once every two years, the department of environmental conservation, with the participation of the department of health and whenever possible, regional planning and development boards, shall review the strategy and shall either (a) prepare any amendments necessary to update the strategy, or (b) issue a determination that no amendments are necessary and the reasons supporting the determination. Any interested person may seek such a review upon written application to the department of environmental conservation for an amendment to the statewide water resources management strategy. Any statement issued by the departments that no amendments are necessary shall be submitted to the council for approval, modification or disapproval. Amendments shall be adopted in the same manner as the strategy itself.