Temperature and Release Summary for Shasta and Trinity - May 2010

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 4/15 to Generation Powerplant 

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

Apr Avg 49.4 48.4 49.3 49.6 52.5 53.3 53.3 54.3 49.1 50.7 3,301 665 

May

1 50.5 (1.4) 49.1 50.4 50.7 53.8 54.9 55.0 55.7 48.7 51.9 52.1 7,121 50 

2 49.5 (1.2) 48.3 50.4 51.1 54.4 55.9 56.1 57.0 47.9 52.4 52.3 7,038 50 3 49.7 (1.6) 48.1 50.4 50.3 54.8 56.4 56.6 57.9 47.4 51.9 52.6 6,854 50 4 50.0 (1.7) 48.3 50.2 49.7 53.6 55.3 55.7 57.1 46.8 51.1 52.1 6,359 566 5 49.8 (1.5) 48.3 50.5 49.9 53.1 54.2 54.7 55.9 46.7 51.0 51.4 5,775 780 6 49.8 (1.4) 48.4 51.5 49.5 52.7 53.6 54.0 54.9 46.7 51.0 51.2 6,829 50 7 50.6 (1.3) 49.3 51.0 49.6 52.8 54.0 54.4 55.5 46.8 50.9 51.8 7,386 50 8 51.1 (1.4) 49.7 51.1 49.9 53.6 55.1 55.5 56.6 47.0 51.3 52.5 6,909 50 9 51.2 (1.5) 49.7 51.1 50.8 53.7 54.9 55.4 56.8 47.1 52.0 52.2 6,625 50 

10 51.0 (1.5) 49.5 51.1 50.8 53.4 54.0 54.5 55.2 46.7 51.6 50.8 6,948 51 11 50.8 (0.8) 50.0 48.6 50.5 53.4 53.7 53.8 54.5 46.4 51.9 51.2 6,633 271 12 51.1 (1.0) 50.1 50.8 51.2 54.2 55.5 55.9 56.9 47.0 52.5 52.7 6,241 459 13 51.3 (1.4) 49.9 50.9 51.5 55.3 56.9 57.3 58.4 47.3 53.2 53.4 6,396 460 14 51.2 (1.3) 49.9 50.9 51.7 55.7 57.5 58.0 59.4 47.6 53.3 53.5 7,115 459 15 51.0 (1.0) 50.0 51.1 51.6 55.7 57.5 58.1 59.6 47.6 53.2 54.1 7,737 275 16 51.2 (1.3) 49.9 51.0 51.7 55.5 57.4 58.0 59.4 47.6 53.1 54.4 7,975 266 17 51.1 (1.2) 49.9 51.1 51.4 54.7 56.4 57.0 58.2 47.7 52.6 53.0 7,500 472 18 51.4 (1.3) 50.1 51.1 51.0 54.1 55.3 55.7 56.8 47.6 52.4 53.2 7,195 466 19 51.1 (1.0) 50.1 51.1 50.9 53.4 54.8 55.4 56.4 47.4 51.7 52.4 7,256 432 20 50.8 (0.7) 50.1 51.3 50.7 53.4 54.4 54.5 55.8 47.1 52.0 52.3 6,802 474 

21 51 2 50 2 51 2 50 9 53 5 54 7 54 8 56 2 47 2 51 8 51 4 7 250 471 

Mean Daily Releas

21 51.2 (1.0) 50.2 51.2 50.9 53.5 54.7 54.8 56.2 47.2 51.8 51.4 7,250 471 

22 51.5 (1.2) 50.3 51.4 50.7 52.5 53.3 53.3 54.6 47.1 51.5 49.7 7,923 264 23 51.8 (1.0) 50.8 51.9 50.5 52.8 53.5 53.3 54.7 46.8 51.7 51.5 8,224 47 24 52.1 (1.3) 50.8 51.8 51.5 53.3 54.3 54.4 55.7 46.8 52.1 51.3 8,011 47 25 52.7 (0.9) 51.8 51.9 51.4 53.1 53.9 53.9 55.2 47.2 52.0 51.4 8,187 72 26 52.7 (0.7) 52.0 52.1 52.2 53.6 54.3 54.0 55.0 46.8 52.9 51.6 9,827 83 27 53.1 (0.7) 52.4 51.7 52.3 53.1 53.6 53.6 54.9 46.8 52.7 51.1 9,554 348 28 53.4 (0.7) 52.7 51.9 52.6 54.0 54.5 54.2 54.7 47.2 53.4 52.1 10,888 232 29 54.3 (0.8) 53.5 52.1 53.3 54.9 55.9 55.8 56.8 47.5 54.1 52.9 13,644 288 30 54.6 (1.0) 53.6 53.0 54.0 55.8 56.9 56.8 57.8 48.1 54.9 54.2 14,591 47 31 52.5 (0.9) 51.6 52.6 54.1 56.0 57.2 57.2 58.6 48.6 54.9 54.9 14,367 82 

Avg 51.4 50.3 51.2 51.2 54.0 55.2 55.4 56.5 47.3 52.4 52.3 #### 8,102 250 Tot cfs 251,160 7,762 Tot af 498,176 15,396 

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

Control Point: Jellys Ferry 4/15/2010 to 5/10/2010 then Balls Ferry 5/11/2010 to 5/24/2010 then Jellys Ferry 5/25/2010 onward