4/9/2013 Temperature and Release Summary for Shasta and Trinity - March 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

Control

TCD SHD minus Point Shasta Spring Crk 

Wt. TCD 3/1 to 3/31 Generation Powerplant 

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

Feb 48.4 47.3 nd 47.7 48.2 48.1 48.3 48.7 44.0 48.2 44.5 3,644 106 

Mar

1 47.8 (0.8) 47.0 nd 48.0 50.0 50.2 50.9 51.7 47.0 49.2 46.5 3,723 80 

2 47.7 (0.7) 47.0 nd 47.9 50.0 50.4 51.1 51.8 46.5 48.7 46.2 3,316 80 3 47.6 (0.7) 46.9 nd 47.9 50.5 50.8 51.4 52.0 47.4 49.2 47.0 3,276 80 4 47.6 (0.7) 46.9 nd 47.8 50.7 51.2 52.0 52.8 47.0 49.0 46.6 3,437 80 5 47.4 (0.7) 46.7 nd 47.8 50.3 50.8 & 51.6 52.5 46.3 48.6 46.2 3,744 80 

6 47.2 (0.7) 46.5 nd 47.7 49.0 49.0 49.8 50.7 46.5 48.4 46.5 3,427 80 

7 47.7 (0.9) 46.8 nd 47.5 49.0 48.8 49.2 49.7 46.5 48.4 45.9 3,498 214 8 48.1 (1.0) 47.1 nd 47.2 49.0 49.1 49.7 50.3 46.9 47.9 46.0 4,508 85 9 47.9 (0.9) 47.0 nd 47.2 49.2 49.3 49.8 50.5 47.5 48.1 46.5 3,153 80 

10 48.2 (1.3) 46.9 nd 47.6 49.4 49.5 50.1 50.8 47.5 48.4 46.6 4,649 80 11 47.8 (1.2) 46.6 nd 47.8 50.3 50.5 51.1 51.6 48.0 48.9 47.1 4,895 80 12 47.7 (0.9) 46.8 nd 47.8 50.7 51.2 51.9 52.8 48.5 48.9 47.4 4,214 80 13 48.2 (1.2) 47.0 nd 47.9 50.8 51.4 52.1 53.2 48.9 49.0 47.6 4,466 80 14 48.0 (0.9) 47.1 nd 47.7 50.7 51.4 52.0 53.1 48.8 48.7 47.5 4,440 80 15 48.2 (1.1) 47.1 nd 47.9 50.6 51.4 51.8 52.9 49.0 49.0 47.9 4,460 80 16 48.0 (1.5) 46.5 nd 47.9 51.2 52.2 52.4 53.3 49.1 49.3 47.9 4,802 80 17 48.0 (1.1) 46.9 nd 47.8 50.9 51.9 52.3 53.3 49.0 49.1 47.4 3,804 80 18 47.8 (1.4) 46.4 nd 47.9 50.4 51.3 51.6 52.7 49.2 48.8 47.2 4,248 80 19 48.8 (1.3) 47.5 nd 47.7 50.5 51.4 51.7 52.5 49.5 48.5 47.4 4,934 80 20 48.6 (1.3) 47.3 nd 47.5 50.1 51.0 51.4 52.1 50.2 48.3 47.5 3,750 392 21 49.8 (1.2) 48.6 nd 48.1 49.8 50.4 50.5 51.7 49.4 48.5 47.2 3,554 80 22 50.5 (1.5) 49.0 nd 48.2 50.0 50.5 50.6 51.2 49.0 49.0 46.9 3,219 80 23 50.5 (1.1) 49.4 nd 48.8 50.1 50.7 50.9 51.5 49.1 49.3 47.2 3,476 80 24 50.3 (1.5) 48.8 nd 49.6 51.4 52.1 52.2 52.7 49.9 50.4 47.8 2,942 80 25 50.5 (1.3) 49.2 nd 50.0 52.0 52.8 53.0 53.7 49.9 51.0 48.1 3,602 80 26 50.7 (1.5) 49.2 nd 50.3 53.2 54.2 54.3 54.9 50.5 51.6 48.2 3,568 80 27 50.4 (0.7) 49.7 nd 50.4 54.0 55.0 55.5 56.5 51.3 51.7 48.3 3,776 80 28 50.6 (1.1) 49.5 nd 50.1 53.6 54.9 55.4 56.5 51.1 51.2 48.2 4,474 80 29 50.9 (1.1) 49.8 nd 50.2 53.2 54.2 54.6 56.2 51.6 51.6 49.0 5,782 84 30 51.2 (1.0) 50.2 nd 50.5 53.2 54.4 54.8 56.1 51.0 51.4 48.7 5,147 80 31 51.4 (1.1) 50.3 nd 50.9 53.7 54.5 54.8 56.1 51.4 51.7 49.2 5,008 80 

Avg 48.9 47.8 ##### 48.4 50.9 51.5 52.0 52.8 48.8 49.4 47.3 4,042 95 Tot cfs 125,292 2,935 Tot af 248,517 5,822 

# = 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 Daylight Savings Time begins 3-10-2013

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 3/31/2013.Note: 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

V:\~WATER\_res_ops\Tempmodel\~sactemp\2013TempFiles\[03_2013 Monthly Summary.xls]Sac Riv Temps

Mean Daily Relea