; and (ii) if applicable, the appropriate Federal power marketing administration. 213. Flexibility to allow greater aquifer recharge (a) Contracts for aquifer recharge (1) In general The Secretary may enter into a contract for the purpose of aquifer recharge using water— (A) released from any Reclamation facility or body of water as a result of flood control operations; and (B) that is surplus to the needs of a Reclamation project. (2) Requirements A contract under paragraph (1) shall— (A) give priority to recharge of a groundwater basin that is fully or partially underlying land authorized to be served by a Reclamation project; (B) be under such terms and conditions as the Secretary determines are appropriate; (C) provide that the intended use of water is aquifer recharge; (D) comply with State law; and (E) not be implemented in a manner that is detrimental to— (i) an existing water contract or power service contract under the Reclamation project; or (ii) rights of prior appropriators under State law. (b) Aquifer recharge on eligible land (1) In general Subject to paragraphs (3) and (4), a holder of a water service or repayment contract for a Reclamation project may— (A) directly use water available under the contract for aquifer recharge on eligible land; or (B) enter into an agreement with an individual or entity to transfer water available under the contract for aquifer recharge on eligible land. (2) Authorized project purpose The use of water for aquifer recharge under paragraph (1) shall be considered an authorized purpose for the Reclamation project under the reclamation laws. (3) Modifications to contracts The Secretary may modify an existing water contract described in paragraph (1) if the Secretary determines that the modification is— (A) necessary to allow for the use of water available under the contract for aquifer recharge under this subsection; (B) in the best interest of the Reclamation project and the United States