; (B) in the best interest of the Reclamation project and the United States; and (C) approved by the association of water users that is responsible for repaying the cost of construction, operations, and maintenance of the facility that delivers the water under the contract. (4) Requirements The use or transfer of water for aquifer recharge under this subsection shall be subject to the requirements that— (A) the use or transfer shall not be implemented in a manner that is detrimental to any water or power service for the Reclamation project; and (B) before the use or transfer, the Secretary shall determine that the use or transfer— (i) (I) results in a net water storage benefit for the Reclamation project; or (II) contributes to the recharge of a depleted aquifer on eligible land; and (ii) complies with State law. (5) Relation to Central Valley Project Improvement Act Section 3405 of the Central Valley Project Improvement Act ( Public Law 102–575 ; 106 Stat. 4709) shall not apply to the use or transfer of water for aquifer recharge under a contract described in subsection (a) or this subsection. (c) Use of Bureau facilities (1) In general The Commissioner may allow the use of excess capacity in Bureau conveyance facilities for carriage of non-Reclamation project water for aquifer recharge, on the condition that— (A) the use— (i) shall not be implemented in a manner that is detrimental to any water or power service for the Reclamation project; (ii) shall be consistent with existing water quality guidelines for the Reclamation project; and (iii) shall comply with State law; and (B) the non-Federal party to an existing contract for water or water capacity in a Reclamation facility shall consent to the use of the Reclamation facility under this subsection. (2) Effect on existing contracts Nothing in this subsection affects a contract— (A) in effect on the date of enactment of this Act