04/26/11 U.S. Bureau of Reclamation - Central Valley Operations Office Delta Outflow Computation (values in c.f.s.) Preliminary Data - Subject to Change April 2011 Estimated numbers are in bold print DELTA INFLOW DELTA EXPORTS OUTFLOW INDEX EXPORT/INFLOW Sacto R Yolo + East Side S. Joaquin Riv Total Clifton Contra Byron Total 3-day @Freeport SRTP Misc Streams 7-day Monthly Delta Court Tracy Costa Bethany NBA Delta Avg NDOI 7-day Monthly Daily 3 Day 14 Day Date prev dy prev wk prev dy prev dy prev dy Avg Avg Inflow NDCU (CLT) (TRA) (CCC) (BBID) Exports TRA & CLT daily Avg Avg (%) (%) (%) 04/01/11 71,999 220 58,111 7,918 27,408 23,226 28,433 165,656 1,750 2,953 2,467 6 0 0 5,426 4,007 158,480 190,280158,480 3.3% 2.3% 2.2% 04/02/11 70,938 221 53,355 7,030 28,433 24,716 28,504 159,977 1,750 2,496 2,712 3 0 0 5,210 5,221 153,017 182,342155,748 3.3% 3.1% 2.9% 04/03/11 70,208 223 51,271 7,013 28,575 26,024 28,519 157,290 1,750 2,794 2,714 3 0 0 5,511 5,379 150,029 173,240153,842 3.5% 3.3% 2.9% 04/04/11 69,843 224 48,859 7,199 28,550 27,021 28,408 154,675 1,800 2,998 2,703 9 0 0 5,710 5,472 147,166 164,695152,173 3.7% 3.5% 3.0% 04/05/11 70,273 226 47,718 6,908 28,075 27,694 28,258 153,200 1,800 2,995 2,704 48 28 0 5,719 5,636 145,681 157,784150,874 3.7% 3.6% 3.1% 04/06/11 69,505 227 43,507 6,695 27,658 28,037 28,142 147,592 1,800 2,991 2,760 65 16 0 5,800 5,717 139,992 151,916149,061 3.9% 3.8% 3.2% 04/07/11 68,390 229 33,693 6,527 27,558 28,083 28,083 136,397 1,800 3,180 2,820 62 0 7 6,069 5,817 128,528 146,127146,127 4.4% 4.0% 3.3% 04/08/11 67,550 230 26,701 6,248 27,733 27,998 28,053 128,462 1,850 3,490 2,128 62 0 0 5,679 5,790 120,933 140,764142,978 4.4% 4.2% 3.4% 04/09/11 66,864 230 18,586 5,896 27,838 27,837 27,986 119,414 1,850 3,998 1,848 63 0 0 5,909 5,822 111,655 134,855139,498 4.9% 4.5% 3.6% 04/10/11 65,925 230 10,220 5,587 27,450 27,644 27,907 109,412 1,850 4,992 1,842 62 91 0 6,805 6,099 100,757 127,816135,624 6.2% 5.1% 3.9% 04/11/11 63,981 230 3,289 5,310 27,196 27,516 27,840 100,006 1,850 4,927 1,841 67 18 5 6,821 6,483 91,335 119,840131,597 6.7% 5.9% 4.3% 04/12/11 60,663 230 2,520 5,121 27,179 27,431 27,776 95,713 1,850 4,490 1,832 68 18 4 6,376 6,641 87,487 111,527127,922 6.6% 6.5% 4.7% 04/13/11 57,225 230 2,225 5,038 27,062 27,340 27,710 91,780 1,900 4,493 1,837 70 26 5 6,379 6,473 83,501 103,457124,505 6.9% 6.7% 4.8% 04/14/11 53,549 230 1,683 4,995 26,921 27,238 27,660 87,378 1,900 4,493 890 69 0 7 5,458 6,012 80,020 96,527 121,327 6.2% 6.5% 4.6% 04/15/11 49,933 230 1,015 4,922 27,017 27,127 27,621 83,117 1,900 3,490 1,833 70 0 11 5,403 5,679 75,814 90,081 118,293 6.4% 6.5% 4.6% 04/16/11 47,191 230 283 4,698 27,067 27,066 27,583 79,469 1,900 3,497 1,838 73 57 11 5,361 5,347 72,208 84,446 115,413 6.6% 6.4% 4.5% 04/17/11 44,567 230 118 4,503 27,021 27,030 27,546 76,439 1,900 3,494 2,486 79 0 15 6,073 5,546 68,466 79,833 112,651 7.8% 6.9% 4.9% 04/18/11 42,354 230 79 4,543 26,942 26,952 27,495 74,148 1,900 3,499 2,756 78 156 17 6,194 5,856 66,054 76,222 110,062 8.2% 7.5% 5.5% 04/19/11 40,386 230 68 4,734 26,633 26,816 27,422 72,051 1,900 3,489 2,757 74 39 6 6,287 6,160 63,864 72,847 107,631 8.6% 8.2% 6.1% 04/20/11 39,632 230 64 4,878 26,108 26,617 27,327 70,912 1,900 3,494 2,758 81 0 0 6,333 6,251 62,679 69,872 105,383 8.8% 8.5% 6.5% 04/21/11 40,512 230 59 5,095 25,529 26,312 27,211 71,425 1,900 3,491 2,758 120 116 12 6,265 6,249 63,260 67,478 103,377 8.6% 8.7% 6.9% 04/22/11 41,826 230 56 5,270 24,883 25,889 27,070 72,265 1,900 4,994 2,750 118 0 10 7,871 6,748 62,494 65,575 101,519 10.7% 9.4% 7.8% 04/23/11 44,680 230 120 5,485 24,104 25,386 26,915 74,619 1,900 6,388 2,744 115 0 15 9,261 7,708 63,458 64,325 99,864 12.2% 10.5% 9.3% 04/24/11 47,934 230 194 5,225 23,504 24,833 26,754 77,087 1,950 6,399 2,228 115 0 21 8,763 8,501 66,374 64,026 98,469 11.2% 11.4% 10.6% 04/25/11 48,095 230 229 4,997 23,067 24,264 26,590 76,618 1,950 2,491 2,013 117 0 12 4,633 7,421 70,035 64,595 97,331 5.9% 9.8% 9.4% 04/26/11 46,477 230 238 4,999 22,654 74,598 04/27/11 04/28/11 04/29/11 04/30/11 Total 1,460,500 5,940 404,261 146,834 692,165 666,096692,8122,709,70 46,500 96,015 58,017 1,696 566 154 155,316 152,033 2,433,282,800,43,159,75 162.6% 157.0% 126.1% Average 56,173 228 15,549 5,647 26,622 26,644 27,712 104,219 1,860 3,841 2,321 68 23 6 6,213 6,081 97,331 112,019126,390 6.5% 6.3% 5.0%