4/6/2011 Temperature and Release Summary for Shasta and Trinity - March 2011

(Updated twice a week November through March)

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 Avg 50.7 50.0 47.4 49.8 49.2 48.9 49.0 49.0 43.9 50.0 45.7 7,072 374 

Mar

1 48.5 (0.7) 47.8 ? 46.6 47.3 47.7 47.2 47.3 47.3 44.8 48.4 45.7 3,615 390 

2 48.3 (0.5) 47.8 ? 46.5 47.4 48.2 48.2 49.0 48.9 44.8 48.1 46.2 2,556 392 3 48.4 (0.5) 47.9 ? 46.4 47.7 49.0 48.7 49.0 49.0 44.9 48.6 47.0 2,341 529 4 48.4 0.6 49.0 46.5 48.0 49.1 49.1 49.7 50.1 45.2 48.7 46.9 2,832 591 

5 48.6 0.6 49.2 47.8 48.1 49.8 49.9 50.4 50.4 45.2 48.6 47.5 2,725 412 6 48.7 0.4 49.1 48.4 48.2 50.0 49.9 50.5 50.8 45.6 48.9 47.8 2,755 564 7 48.7 (1.0) 47.7 47.5 48.4 49.8 49.8 50.3 50.5 45.5 49.0 47.0 3,476 252 8 48.8 (1.0) 47.8 48.7 48.5 49.8 49.7 50.4 50.9 45.7 49.0 47.1 3,036 534 9 48.9 1.3 50.2 48.1 48.4 50.3 50.4 51.0 51.5 46.3 49.2 47.5 3,528 451 

10 48.7 (0.6) 48.1 47.3 ? 48.5 50.7 50.8 51.4 52.1 46.2 49.3 47.9 3,995 284 

11 48.9 (0.8) 48.1 47.1 ? 48.6 50.3 50.4 50.9 52.0 46.6 49.5 47.5 3,414 595 12 48.9 (0.4) 48.5 47.2 48.5 50.0 50.1 50.4 51.4 46.6 48.9 47.3 2,100 830 

13 49.0 (0.9) 48.1 45.3 ? 48.3 49.5 49.6 49.8 50.7 47.0 48.5 47.3 3,029 370 

14 48.8 (0.9) 47.9 46.9 48.4 50.0 49.6 49.8 50.8 47.4 49.0 47.8 2,622 996 

15 48.6 (0.9) 47.7 47.5 48.3 49.8 49.7 49.9 50.7 47.4 48.5 48.7 11,231 1,096 16 48.6 (0.8) 47.8 47.3 48.0 49.7 49.5 49.5 50.2 47.5 48.2 49.1 10,810 1,463 17 48.7 (1.0) 47.7 47.5 47.9 48.3 48.0 48.2 49.2 47.3 48.0 47.0 12,286 958 18 48.2 (0.7) 47.5 47.4 47.7 48.0 47.7 47.8 48.4 47.4 47.7 47.5 14,910 1,224 19 48.1 0.3 48.4 47.3 47.5 47.2 46.9 46.9 47.2 47.2 47.4 46.8 15,043 1,534 20 48.1 0.8 48.9 47.2 47.5 47.3 46.8 46.8 47.2 46.4 47.4 46.8 15,002 1,880 21 48.2 (0.2) 48.0 47.1 47.6 48.1 47.9 47.9 48.5 47.3 47.6 48.0 15,118 1,890 22 48.2 (0.8) 47.4 47.2 47.6 47.9 47.8 47.8 48.5 46.8 47.6 47.8 15,004 1,927 23 48.3 (0.3) 48.0 47.1 47.7 47.9 47.8 47.8 48.5 46.5 47.6 47.5 15,236 1,833 24 48.0 (0.8) 47.2 46.5 47.6 47.7 47.5 47.5 48.0 46.2 47.6 47.2 14,972 1,868 25 48.1 (0.9) 47.2 46.0 ? 47.4 47.3 47.2 47.2 47.6 46.7 47.3 47.7 14,916 1,938 

26 48.2 0.2 ? 48.4 46.9 47.6 47.9 47.7 47.7 48.1 46.8 47.6 47.8 15,128 1,969 

27 48.3 (0.2) ? 48.1 47.0 47.6 48.0 47.9 47.9 48.5 46.9 47.6 47.6 15,339 2,006 28 48.3 (0.7) ? 47.6 47.0 47.6 48.3 48.1 48.1 48.8 47.1 47.7 48.1 14,945 2,026 29 48.6 (1.2) ? 47.4 47.2 47.7 48.5 48.6 48.6 49.5 47.1 47.8 48.8 15,476 2,018 30 48.8 (1.1) ? 47.7 47.7 48.0 48.9 49.0 49.1 50.0 47.6 48.1 50.2 15,668 2,018 31 49.2 (1.2) ? 48.0 48.1 48.3 49.3 49.6 49.6 50.7 47.8 48.4 50.8 15,625 2,013 

Avg 48.5 48.1 47.2 47.9 48.8 48.7 49.0 49.5 46.5 48.3 47.7 9,314 1,189 Tot cfs 288,733 36,851 Tot af 572,702 73,094 1

# = 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 3/01/2011 to 3/31/2011.NOTE: Many of the hourly readings for SPP are questionable based on low generation.  Many hourly readings for SHD are questionable. It looks like some readings may actually be air temperatures.

Mean Daily Releas