The declared statewide interest in the preservation of Lake Tahoe, and the state and federal actions mandating the transportation of treated sewage effluent out of the Lake Tahoe watershed, requires that the law relating to the authority for prescribing waste discharge requirements for the effluent, and requirements pertaining to the storage of the effluent, the receiving waters, and the disposal areas, be clarified, and that law is hereby clarified and confirmed, to provide that, notwithstanding Section 13002 or any other provision of law, the regional board for the Lahontan region has exclusive authority to prescribe, under existing law, waste discharge requirements for treated sewage effluent transported out of the Lake Tahoe watershed to Alpine County within the Lahontan region, including requirements pertaining to the storage of the effluent, the receiving waters, and the disposal areas in Alpine County within the Lahontan region. However, any such action by that regional board is subject to review as provided in Sections 13320 and 13330.