Leadville Mine Drainage Tunnel Act of 2011

[AI summary unavailable — showing source text] Leadville Mine Drainage Tunnel Act of 2011 - Amends the Reclamation Projects Authorization and Adjustment Act of 1992 to expand requirements for the operation and maintenance of the Leadville Mine Drainage Tunnel, Colorado, to require the Secretary of the Interior to take any action necessary to maintain the structural integrity of the Tunnel to maintain public safety and to prevent an uncontrolled release of water from the tunnel portal. Makes the Secretary responsible for the operation and maintenance of the water treatment plant, including authorized sludge disposal. Authorizes the Secretary to offer to enter into one or more contracts with any appropriate individual or entity for the conduct of any required service. Includes within the Tunnel any surface water diverted into it and water collected by the dewatering relief well installed in June 2008. Authorizes the Secretary: (1) to enter into an agreement with any other entity or government agency to provide funding for an increase in any operation, maintenance, replacement, capital improvement, or expansion cost that is necessary to improve or expand the Treatment Plant; and (2) upon entering into an agreement, to make any nec…