Mni Wiconi Project Act Amendments of 2013

[AI summary unavailable — showing source text] Mni Wiconi Project Act Amendments of 2013 - Amends the Mni Wiconi Project Act of 1988 to direct the Secretary of the Interior (Secretary) to develop plans for completing, and to enter into agreements with specified agency heads to complete, the Oglala Sioux Rural Water Supply System, the Rosebud Sioux Rural Water System, and the Lower Brule Sioux Rural Water System. Requires such plans to require: (1) the completion of remaining components of the applicable system in accordance with the Final Engineering Report dated May 1993; (2) the improvement, repair, and replacement of existing water systems; and (3) the transfer of those existing water systems to the United States, to be held in trust for the applicable tribe and made part of the applicable rural water system. Requires the Secretary to enter into agreements with the Administrator of the Environmental Protection Agency (EPA), the Secretary of Agriculture, the Secretary of Health and Human Services (HHS), and the Secretary of Housing and Urban Development (HUD) to fulfill the trust responsibility of the United States and to complete such water systems. Requires: (1) the Administrator to assist the Secretary in meeting the envir…