2/7/2013 Temperature and Release Summary for Shasta and Trinity - January 2013

(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 1/31 6/1 to 9/30 Generation Powerplant 

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

Dec 53.0 52.4 53.9 51.4 49.5 48.8 48.6 48.4 44.3 51.1 48.2 2,725 1,154 

Jan

1 51.0 (0.9) 50.1 nd 48.1 46.3 45.3 45.0 44.5 43.0 47.8 43.8 1,942 1,987 

2 51.0 (0.9) 50.1 nd 47.8 46.3 45.3 45.0 44.5 43.1 47.6 43.6 2,470 1,852 3 50.1 (0.4) 49.7 nd 47.7 46.2 45.3 45.0 44.5 43.5 47.4 43.7 2,013 1,865 4 50.5 (1.0) 49.5 nd 47.7 46.1 45.5 45.3 44.9 43.4 47.5 43.9 2,568 1,792 5 49.9 (0.7) 49.2 nd 47.9 46.0 45.6 45.5 45.0 43.7 47.3 44.2 2,762 821 6 50.4 (1.4) 49.0 nd 48.2 47.4 46.9 46.6 46.0 44.0 48.3 44.8 2,606 789 7 50.5 (1.7) 48.8 nd 48.2 47.5 47.1 47.0 46.8 44.3 48.4 44.7 3,614 725 8 50.4 (1.5) 48.9 nd 48.5 47.8 47.4 47.4 47.2 44.5 48.7 45.0 3,090 653 9 50.0 (1.9) 48.1 nd 48.6 47.7 47.5 47.5 47.4 44.1 48.4 45.0 3,129 718 

10 49.6 (2.6) 47.0 nd 48.4 46.4 46.0 46.0 46.2 42.8 48.0 43.4 5,621 82 11 49.4 (1.0) 48.4 nd 48.4 46.0 45.3 45.2 45.1 42.8 47.9 43.0 4,070 81 12 49.3 (0.9) 48.4 nd 48.1 45.6 44.9 44.8 44.5 42.6 47.5 42.9 3,254 241 13 49.3 (0.9) 48.4 nd 47.7 44.9 44.1 44.0 43.7 41.9 47.0 42.5 3,422 81 14 49.3 (2.3) 47.0 nd 47.4 44.7 43.7 43.5 43.1 41.6 46.9 42.8 3,929 67 15 49.1 (1.1) 48.0 nd 47.7 45.4 44.6 44.4 43.9 41.5 47.5 43.1 3,424 136 16 49.1 (1.0) 48.1 nd 47.9 46.1 45.5 45.2 44.8 41.9 47.9 43.6 4,416 56 17 49.4 (0.9) 48.5 nd 48.1 46.5 46.0 45.9 45.5 41.5 48.1 43.5 4,367 56 18 49.1 (1.1) 48.0 nd 48.0 46.5 46.1 46.0 45.9 41.6 47.9 42.9 4,570 54 19 48.9 (1.1) 47.8 nd 48.1 46.4 45.9 45.8 45.7 41.4 48.0 42.5 4,122 44 20 48.6 (1.0) 47.6 nd 47.9 46.4 45.9 45.8 45.7 41.2 47.9 42.4 3,428 44 

21 48 5 48 3 47 6 46 4 45 9 45 9 45 8 41 1 47 7 42 4 2 901 700 

Mean Daily Relea

21 48.5 (0.2) 48.3 nd 47.6 46.4 45.9 45.9 45.8 41.1 47.7 42.4 2,901 700 

22 48.2 (1.9) 46.3 nd 47.1 46.3 45.9 45.9 45.9 41.5 47.3 42.7 4,867 44 23 48.2 (1.1) 47.1 nd 47.3 46.4 46.2 46.2 46.0 41.8 47.2 43.0 3,933 44 24 48.2 (1.2) 47.0 nd 47.4 47.4 47.3 47.4 47.3 42.3 48.1 44.1 4,321 44 25 48.2 (1.3) 46.9 nd 47.5 48.2 48.3 48.4 48.5 42.6 48.0 44.4 3,495 58 26 48.2 (1.2) 47.0 nd 47.6 48.2 48.3 48.5 48.9 41.9 48.0 43.9 3,544 80 27 47.6 (1.4) 46.2 nd 47.2 47.0 46.9 47.1 47.7 41.5 47.5 42.9 3,707 80 28 48.0 (1.4) 46.6 nd 47.0 46.9 46.6 46.7 46.9 41.8 47.4 43.2 4,461 80 29 47.7 (1.5) 46.2 nd 46.6 46.6 46.4 46.5 46.7 41.9 47.0 43.2 3,830 86 30 48.4 (1.7) 46.7 nd 46.8 47.0 47.0 47.0 47.2 42.2 47.4 43.5 3,461 757 31 48.8 (1.5) 47.3 nd 46.6 47.0 47.1 47.3 47.6 42.2 47.2 43.5 4,059 80 

Avg 49.2 47.9 ##### 47.7 46.6 46.1 46.1 45.9 42.4 47.7 43.5 3,593 458 Tot cfs 111,396 14,197 Tot af 220,954 28,160 

# = 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 1/31/2013Note: 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 aNote: There are times when the SHD probe apprears to be out of the water, so it measures air temperature. USBR Northern California Area Office is checkin

V:\~WATER\_res_ops\Tempmodel\~sactemp\2013TempFiles\[01_2013 Monthly Summary.xls]Sac Riv Temps