; and (B) to exclude costs from hydropower rates that are inconsistent with an equitable allocation or assignment of nonpower-related costs to project use and firm electric service rates. 4. Hydropower drought mitigation (a) Notification of predicted available power (1) In general Not later than 30 days after the date of enactment of this Act, and each January 1 thereafter, the Administrator shall notify project use and firm electric service customers of each of the Bureau of Reclamation projects described in paragraph (2) of the quantity of energy predicted to be available for delivery from the applicable Bureau of Reclamation project during the 1-year period beginning on the date of the notification, based on the most recent August 24-month study of the Bureau of Reclamation. (2) Description of projects The Bureau of Reclamation projects referred to in paragraph (1) are the following: (A) The Colorado River Storage Project, the Collbran Project, and the Rio Grande Project (collectively referred to in this Act as the Salt Lake City Area Integrated Projects ). (B) The Boulder Canyon Project. (C) The Parker-Davis Project. (b) Conditions warranting rate reduction (1) Salt lake city area integrated projects If a notification under subsection (a)(1) indicates that the annual quantity of energy produced by the Salt Lake City Area Integrated Projects is predicted to be less than 4,900,000 MWh, the Administrator shall reduce rates for each project use and firm electric service customer of the Salt Lake City Area Integrated Projects in each monthly invoice for firm electric service until such time as the expected annual energy production returns to levels equal to or greater than 4,900,000 MWh. (2) Boulder canyon project If a notification under subsection (a)(1) indicates that the annual quantity of energy produced by the Boulder Canyon Project is predicted to be less than 3,600,000 MWh, the Administrator shall reduce rates for each project use and firm electric service customer of the Boulder Canyon Project in each