1/9/2013 Temperature and Release Summary for Shasta and Trinity - December 2012

(Updated twice a week November through April)

Sacramento River Water Temperatures in Degrees F

Day Collected from CDEC (California Data Exchange Center) in CFS

Cntrl Pnt Control

TCD SHD minus 4/16 to 5/31 Point Shasta Spring Crk 

Wt. TCD 10/1 to 12/31 6/1 to 9/30 Generation Powerplant 

Avg. (Diff) Shd Spp Kwk Bsf Jlf Bnd Rdb Lws Ccr Igo Nfh El 815 Release 

Nov 53.9 53.3 55.7 53.1 53.2 53.3 53.3 53.3 47.3 53.3 53.5 48.5 4,856 205 

Dec

1 55.7 (0.5) 55.2 54.2 54.3 55.0 54.5 54.5 55.0 47.2 54.5 53.6 47.5 1,867 1,659 

2 55.4 (0.3) 55.1 54.2 54.7 55.4 54.9 55.1 55.6 46.6 55.2 53.3 47.6 1,003 1,146 3 55.4 (0.7) 54.7 53.9 54.6 53.3 52.0 52.1 52.8 46.5 54.4 51.5 46.2 2,124 1,783 4 54.8 (0.7) 54.1 54.0 54.7 53.8 52.9 52.8 52.6 46.5 54.4 52.2 46.3 3,234 538 5 54.5 (0.7) 53.8 53.6 54.5 53.4 52.7 52.6 52.7 47.0 54.6 52.8 47.3 1,246 1,883 6 54.2 (0.8) 53.4 53.4 54.1 54.3 53.8 53.6 53.5 46.8 54.4 51.4 47.9 3,050 1,448 7 53.7 (0.8) 52.9 nd 53.5 52.9 51.9 51.9 52.3 46.2 53.5 50.1 46.3 2,102 1,443 

8 53.6 (0.8) 52.8 nd 53.1 51.8 50.7 50.5 50.4 46.0 53.0 49.9 44.9 2,219 931 9 53.6 (0.6) 53.0 nd 52.6 51.7 51.0 50.7 50.2 45.8 52.9 50.3 44.7 3,961 654 

10 53.6 (0.9) 52.7 nd 52.3 52.0 51.6 51.3 51.0 46.1 52.8 50.5 44.8 4,699 82 11 53.4 (0.6) 52.8 nd 52.4 51.3 50.8 50.7 50.7 45.9 52.0 49.7 45.0 3,196 82 12 52.8 (0.5) 52.3 nd 52.3 51.4 50.9 50.5 50.4 45.1 52.3 49.1 44.5 4,034 82 13 53.5 (0.8) 52.7 nd 52.0 50.4 49.7 49.5 49.5 44.8 51.6 48.0 43.6 3,912 81 14 52.8 (0.8) 52.0 nd 51.4 49.8 49.0 48.6 48.3 44.7 51.0 48.2 42.6 3,988 157 15 52.4 0.0 52.4 nd 51.5 48.9 48.0 47.7 47.4 44.1 50.1 47.5 41.5 4,106 82 16 52.4 (0.5) 51.9 nd 51.2 47.6 47.4 47.1 46.6 43.7 50.4 47.7 40.6 4,095 81 17 52.9 (0.8) 52.1 nd 51.4 48.0 47.7 47.3 47.2 43.7 51.1 48.3 41.6 4,147 72 18 53.0 (0.9) 52.1 nd 51.0 48.4 47.6 47.4 47.1 43.0 50.5 46.9 41.0 2,944 1,431 19 53.3 (1.1) 52.2 nd 50.5 47.6 46.5 46.2 45.8 42.9 49.6 46.6 40.0 2,366 1,662 20 52.8 (0.7) 52.1 nd 50.3 48.1 47.2 46.8 45.7 41.5 49.6 46.9 39.8 2,265 1,381 

21 52 7 51 9 49 9 44 3 44 0 43 9 44 5 41 2 48 5 45 1 38 5 2 745 1 607 

Mean Daily Relea

21 52.7 (0.8) 51.9 nd 49.9 44.3 44.0 43.9 44.5 41.2 48.5 45.1 38.5 2,745 1,607 

22 52.3 (0.5) 51.8 nd 49.8 44.4 43.9 43.5 43.1 41.6 49.1 46.8 39.3 1,534 2,272 23 51.9 (0.4) 51.5 nd 49.5 46.6 46.3 46.0 45.8 41.9 49.3 46.9 40.7 1,502 2,041 24 52.5 (0.9) 51.6 nd 49.5 46.5 46.1 45.9 45.7 42.1 49.4 46.1 41.5 2,007 1,382 25 52.1 (0.5) 51.6 nd 49.4 47.0 46.5 46.3 45.9 42.2 49.0 45.6 41.5 2,224 1,389 26 52.0 (0.5) 51.5 nd 49.1 46.1 45.3 45.1 45.0 43.1 49.0 45.4 40.5 2,265 1,544 27 51.5 (0.3) 51.2 nd 49.2 46.8 46.0 45.8 45.5 43.3 48.9 44.9 41.7 2,313 1,709 28 51.6 (0.9) 50.7 nd 48.7 46.7 45.7 45.5 45.0 43.3 48.2 44.5 41.9 2,266 1,975 29 51.2 (0.6) 50.6 nd 48.6 46.9 46.1 45.8 45.1 43.6 48.7 45.0 42.1 2,131 1,911 30 51.1 (0.6) 50.5 nd 48.4 47.1 46.3 46.1 45.5 43.5 48.2 44.5 42.5 2,499 1,523 31 51.2 (0.9) 50.3 nd 48.3 46.6 45.7 45.4 44.9 43.4 47.9 44.0 41.7 2,434 1,739 

Avg 53.0 52.4 53.9 51.4 49.5 48.8 48.6 48.4 44.3 51.1 48.2 43.1 2,725 1,154 Tot cfs 84,478 35,770 Tot af 167,562 70,950 

# = Station out of service ^ - estimated (7 hours or less available) ? = Avg. includes estimated data! = 17 hours or less of readings & = 18 to 23 hours of reading ND = No hourly readings or incorrect 

Control Point: Balls Ferry 4/16/2012 to 5/31/2012; Jellys Ferry 6/1/2012 to 9/30/2012; Balls Ferry 10/01/2012 to 12/31/2012Note: On 12/7/2012 at the temperature point for the Spring Creek Power Plant (SPP), the bottom section of metal pipe was torn off the wall. Sonde missing a

C:\Stacey Files\Sac River\[12_2012 Monthly Summary.xls]Sac Riv Temps