This bill amends the Aquifer Recharge Flexibility Act to clarify and streamline the use of existing infrastructure for aquifer recharge purposes. It allows holders of existing rights-of-way, easements, or permits to use them for aquifer recharge and water transport without requiring additional authorization from the Secretary of the Interior. This use is explicitly defined as *not* an expansion, modification, major Federal action, or substantial deviation. A 30-day notice must be submitted to the Bureau of Land Management (BLM) before such use, detailing the involved entities, the specific authorization, and the intended scope. These aquifer recharge uses are generally exempt from additional rent payments to the BLM, except for any for-profit uses or for-profit entities. The bill also explicitly states that it does not waive compliance with critical environmental laws, such as the Federal Water Pollution Control Act or the Endangered Species Act. Furthermore, it clarifies that the bill does not grant authority to construct, modify, or expand any existing infrastructure.