; (2) by striking paragraph (3) and inserting the following: (3) The term Water Year means March 1 through the last day of February of the following Calendar Year, both dates inclusive. ; and (3) by adding at the end the following new paragraph: (4) The term Critical Water Year means when the total unimpaired runoff at Friant Dam is less than 400,000 acre-feet, as forecasted as of March 1 of that water year by the California Department of Water Resources. . 2104. Implementation of restoration Section 10004 of the San Joaquin River Restoration Settlement Act ( Public Law 111–11 ) is amended— (1) in subsection (a)— (A) in the matter preceding paragraph (1), by striking authorized and directed and all that follows through in the Settlement: and inserting authorized to carry out the following: ; (B) by striking paragraphs (1), (2), (4), and (5); (C) in paragraph (3)— (i) by striking (3) and inserting (1) ; and (ii) by striking paragraph 13 of the Settlement and inserting this part ; and (D) by adding at the end the following new paragraphs: (2) In each Water Year, commencing in the Water Year starting on March 1, 2021— (A) shall modify Friant Dam operations so as to release the Restoration Flows for that Water Year, except in any Critical Water Year; (B) shall ensure that the release of Restoration Flows are maintained at the level prescribed by this part, but that Restoration Flows do not reach downstream of Mendota Pool; (C) shall release the Restoration Flows in a manner that improves the fishery in the San Joaquin River below Friant Dam, but upstream of Gravelly Ford in existence as of the date of the enactment of this part, and the associated riparian habitat