Report Generated 06/23/2023 at 1418

Page Description

2 - Mean Daily Water Temperature, Release Flow Rates and Air Temperatures with Monthly Averages

3 - Sacramento River Mean Daily Water Temperature Plot

4 - Trinity River Mean Daily Water Temperature Plot

5 - Shasta Lake Isothermobaths & Cold Water Pool Statistics

14 - Trinity Lake Isothermobaths & Cold Water Pool Statistics

23 - Whiskeytown Lake Isothermobaths & Cold Water Pool Statistics

x - TCD Configuration (External Link)

All Data in this Report is Preliminary and Subject to Change

Northern CVP Water Temperature Report

May - 2023
Shasta 

Generation 

Spring 

Creek P.P.

Keswick 

Total BSF RDB

Apr 3078 676 4563 58.1 59.6

05/01 49.7 48.1 48.7 # 50.0 50.4 52.2 54.6 ? 55.5 50.2 46.3 # 48.1 7617 699 10175 57.0 54.5 54.1

05/02 50.2 48.5 48.9 ! 48.9 49.4 49.8 51.4 52.3 53.1 50.3 46.7 # 47.6 8769 75 10096 56.5 53.5 53.6

05/03 50.5 ? 48.8 48.8 ? 49.7 50.1 50.5 51.9 52.6 53.5 51.4 46.1 # 48.2 7740 505 10124 60.0 57.7 57.8

05/04 50.1 48.9 49.1 50.0 50.0 50.3 51.4 53.0 ? 53.6 49.8 45.8 # 47.4 9981 190 12020 55.0 54.1 54.4

05/05 50.1 48.8 49.1 49.3 49.4 49.8 50.7 51.5 52.0 49.7 46.0 # ? 47.3 10366 655 12975 56.5 53.5 54.0

05/06 50.6 49.2 48.8 ? 49.4 49.7 49.8 50.7 ? 51.1 51.8 49.4 ? 45.8 # 48.2 9940 434 13074 53.0 51.5 51.9

05/07 50.8 49.3 49.1 ? 49.7 49.8 50.0 51.2 52.0 ? 52.5 49.0 46.0 # 47.3 9420 58 12971 55.0 54.5 56.0

05/08 51.0 50.0 48.8 ? 50.0 50.1 50.4 51.3 52.0 ? 52.6 49.5 46.4 # 48.2 10979 85 13038 56.0 55.4 55.2

05/09 51.3 50.1 49.1 ? 50.8 51.1 51.4 52.4 52.8 ? 53.5 50.6 46.4 # 49.3 10207 64 13088 60.5 57.3 59.3

05/10 51.1 49.1 49.0 ? 51.2 51.4 51.8 53.4 54.3 ? 55.2 51.5 46.6 # 50.0 8290 61 12913 60.5 58.3 59.6

05/11 50.8 49.7 49.2 # 51.0 50.6 51.1 53.3 55.0 ? 56.2 52.8 47.2 # 50.9 9659 273 13091 66.0 63.9 64.5

05/12 51.3 50.5 50.1 50.7 51.3 51.8 53.7 55.1 56.2 53.5 47.6 # 52.0 11382 37 12974 73.5 69.5 71.6

05/13 51.4 50.2 49.7 51.5 52.0 52.5 54.6 56.4 57.7 54.2 48.1 # 52.2 9647 37 13137 80.0 74.5 78.7

05/14 51.4 49.9 49.8 51.4 51.9 52.5 54.9 57.0 58.5 54.3 48.6 # 52.1 9659 37 13078 81.0 74.8 78.3

05/15 51.1 50.1 49.8 51.1 51.6 52.2 54.6 56.7 ? 58.3 54.3 49.1 # 52.3 11282 37 13005 74.5 70.8 72.5

05/16 51.4 50.3 49.8 51.1 51.6 52.2 54.6 ? 56.9 ? 58.0 ? 54.8 49.3 # 52.5 11254 37 13050 76.0 73.1 74.3

05/17 51.1 49.9 49.4 ? 51.5 51.9 52.4 54.6 56.5 ? 57.9 55.0 49.4 # 52.7 10286 319 13091 76.0 72.3 74.3

05/18 50.9 49.6 49.5 51.1 51.7 52.3 54.7 57.0 58.5 54.5 49.8 # 52.8 9417 124 13053 79.0 74.9 74.8

05/19 51.3 49.9 49.5 50.9 51.4 51.9 54.4 56.8 ? 58.4 54.4 49.8 # 52.9 10316 669 13017 77.5 73.8 74.3

05/20 51.3 50.0 50.2 51.1 51.6 52.2 54.7 57.0 ? 58.4 54.6 50.1 # 53.3 10576 47 13003 76.5 73.1 72.5

05/21 51.5 49.9 49.5 51.2 51.6 52.2 54.7 56.9 ? 58.5 54.5 50.4 # 53.7 9802 115 13000 77.5 74.7 73.1

05/22 51.6 50.3 49.8 51.1 51.6 52.1 54.6 56.9 58.4 54.3 50.5 # 53.4 10170 540 13094 80.0 75.4 77.0

05/23 51.7 ? 50.5 49.8 51.5 52.0 52.6 55.0 57.0 ? 58.3 54.1 50.7 # 54.0 9238 144 11269 77.0 73.6 75.3

05/24 51.0 49.9 49.6 51.7 52.2 52.9 55.3 57.5 # 34.2 54.0 51.0 # 53.9 8667 154 11006 71.5 68.6 68.2

05/25 ? 51.3 ? 49.9 49.8 ? 51.1 ? 51.7 ? 52.4 ? 55.0 ? 57.3 ? 58.9 ? 54.1 ? 51.4 # ? 54.8 8866 446 11011 71.5 67.1 66.5

05/26 51.8 ? 50.2 49.9 51.2 51.8 52.4 54.9 57.2 ? 58.7 54.4 51.8 # 55.3 8821 111 11008 72.0 68.8 67.5

05/27 52.3 49.9 50.4 51.7 52.2 52.7 55.3 57.6 # 54.1 51.9 # 55.3 7964 37 10990 71.0 69.3 67.8

05/28 52.1 50.6 50.1 51.6 52.1 52.7 55.2 57.7 # 54.1 52.1 # 55.4 9210 53 10947 74.5 71.7 71.0

05/29 51.8 50.2 50.1 52.1 52.8 53.5 56.0 57.9 # 54.3 51.8 # 55.7 8615 37 10184 74.5 70.7 69.7

05/30 51.1 49.9 50.2 51.8 52.4 53.2 56.0 58.4 # 54.1 52.0 # 55.7 7832 355 10081 73.5 70.1 68.9

05/31 50.2 48.7 50.0 51.4 52.2 53.0 56.0 58.4 ? 60.1 54.3 52.1 # 55.2 7948 105 10080 75.0 71.3 69.5

May 9532 215 12119 69.1 66.0 66.6

293920 6540 373643

Legend Notes 582978 12972 741106

? = 1-9 hours of data missing (Average includes estimations) 1 Temperatures are weighted averages based on individual penstock flow and temperature

! = 10 or more hours of data missing (Average not calculated) Highlighted cells in the TCD column indicate a TCD change was made on that day

# = Station out of service 2 Current Clear Creek River control point (see page 4 for more details)

↑ = Record high air temperature 3 DGC not reporting correct water temperatures due to probe being buried fine sediment

↓ = Record low air temperature

 = Monthly Averages

Total AF

54.8 50.2

RDB

55.3 52.9

LWS

48.8 -

DGC3

Mean Daily Air 

Temperatures (°F)

RDD

59.7

Total CFS

51.7

Mean Daily 

Release (CFS)

NFH

46.6

Mean Daily Water Temperatures (°F)

45.2

BND IGO

50.9

BSF

51.7 55.5

47.7 48.9 49.6 50.5 52.9 55.3

D

A

T

E

48.3 47.6

CCR2 TCD SAC 1 SHD SPP1 KWK

51.1 49.7 49.5 51.2 53.8

2
Code Body of Water Location1 CDEC Link River Point Temp. (°F) Begin Date End Date

TCD N/A Shasta Power Plant N/A Sacramento SAC 54.5 06/07/2022 5/14/2023

SHD Sacramento River 0.3 miles downstream of Shasta Power Plant Click Here Sacramento CCR 53.5 05/14/2023 TBD

SPP N/A Spring Creek Power Plant N/A

KWK Sacramento River 0.8 miles downstream of Keswick Dam Click Here

SAC Sacramento River 4.8 miles downstream of Keswick Dam Click Here

CCR Sacramento River 9.7 miles downstream of Keswick Dam Click Here

BSF Sacramento River 25 miles downstream of Keswick Dam Click Here

JLF Sacramento River 34 miles downstream of Keswick Dam Click Here

BND Sacramento River 41 miles downstream of Keswick Dam Click Here Notes

RDB Sacramento River 58 miles downstream of Keswick Dam Click Here

IGO Clear Creek 7.3 miles downstream of Whiskeytown Dam Click Here 1 Distances are approximate

Station Details Water Right Temperature Control Points

42

48

54

60

66

72

78

84

90

96

102

48

50

52

54

56

58

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

Air Temperature (°F)

Water Temperature (°F)

Sacramento River Mean Daily Temperatures

Redding Air (Observed and Forecasted) TCD KWK SAC CCR BSF

3
Code Body of Water Location1 CDEC Link River Point Temp. (°F) Begin Date End Date

LWS Trinity River 1.1 miles downstream of Lewiston Dam Click Here Trinity DGC2 56 Sep-15 Oct-01

DGC Trinity River 19 miles downstream of Lewiston Dam Click Here Trinity NFH 56 Oct-01 Dec-31

NFH Trinity River 38 miles downstream of Lewiston Dam Click Here

 Notes

1 Distances are approximate

2 DGC not reporing correct water temperatures due to probe

being buried in fine sediment (no data)

Station Details Water Right Temperature Control Points

37

42

47

52

57

62

67

72

77

82

87

92

97

44

46

48

50

52

54

56

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

Air Temperature (°F)

Water Temperature (°F)

Trinity River Mean Daily Temperatures

Redding Air (Observed and Forecasted) LWS DGC NFH

4
Updated 06/01/2023 at 1003

Latest Profile Date: 05/31/2023

Page Description

6 - Shasta Lake Isothermobaths Plot

7 - Shasta Lake Cold Water Pool Volume ≤52°F

8 - Shasta Lake Cold Water Pool Volume ≤50°F

9 - Shasta Lake Cold Water Pool Volume ≤48°F

10 - Shasta Lake Cold Water Pool Volume ≤52°F - Percent Exceedances

11 - Shasta Lake Cold Water Pool Volume ≤50°F - Percent Exceedances

12 - Shasta Lake Cold Water Pool Volume ≤48°F - Percent Exceedances

13 - Shasta Lake Cold Water Pool Comparison by Year

Shasta Lake Isothermobaths & Cold Water Pool Statistics

2023

5
6

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Isothermobaths Plot - 2023

<46 46-48 48-50 50-52 52-54 54-56 56-58 58-60

60-62 62-64 64-66 66-68 68-70 >70 Storage
7

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤52°F

Avg (1998-2022) 2014 2015 2016 2019 2022 2023
8

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤50°F

Avg (1998-2022) 2014 2015 2016 2019 2022 2023
9

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤48°F

Avg (1998-2022) 2014 2015 2016 2019 2022 2023
10

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤52°F - Percent Exceedances (1998-2022)

2023 95 90 75 50 25 10 5
11

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤50°F - Percent Exceedances (1998-2022)

2023 95 90 75 50 25 10 5
12

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤48°F - Percent Exceedances (1998-2022)

2023 95 90 75 50 25 10 5
May-31

2023 ≤52° ≤50° ≤48° Abs. Avg. ≤52° ≤50° ≤48° Abs. Avg.

1998 -131 -238 -716 362 -4 -9 -32 15

1999 -639 -562 -526 576 -20 -21 -23 21

2000 -674 -1080 -1353 1035 -22 -39 -60 40

2001 -1039 -886 -846 924 -33 -32 -37 34

2002 -722 -663 -771 719 -23 -24 -34 27

2003 -798 -1139 -1541 1159 -26 -42 -68 45

2004 -1106 -1056 -1048 1070 -35 -39 -46 40

2005 -958 -1112 -1380 1150 -31 -41 -61 44

2006 -603 -574 -871 682 -19 -21 -38 26

2007 -998 -837 -873 903 -32 -31 -39 34

2008 -1635 -1431 -1187 1417 -52 -52 -52 52

2009 -1534 -1370 -1187 1364 -49 -50 -52 51

2010 -187 -293 -711 397 -6 -11 -31 16

2011 -78 -193 -437 236 -2 -7 -19 10

2012 -369 -320 -742 477 -12 -12 -33 19

2013 -1119 -956 -945 1007 -36 -35 -42 38

2014 -1919 -1752 -1604 1758 -61 -64 -71 65

2015 -1920 -1804 -2061 1928 -62 -66 -91 73

2016 -594 -514 -1397 835 -19 -19 -62 33

2017 -547 -839 -940 775 -18 -31 -41 30

2018 -626 -778 -1436 947 -20 -28 -63 37

2019 -346 -575 -870 597 -11 -21 -38 24

2020 -977 -1136 -1563 1225 -31 -42 -69 47

2021 -1926 -1696 -1565 1729 -62 -62 -69 64

2022 -2166 -1895 -1578 1880 -69 -69 -70 69

2023 0 0 0 0 0 0 0 0

∆ TAF % ∆

Shasta Lake Cold Water Pool Comparison by Year (for Specified Date)

Historic - Current (Historic - Current) / Current

13
Updated 05/18/2023 at 1416

Latest Profile Date: 05/18/2023

Page Description

15 - Trinity Lake Isothermobaths Plot

16 - Trinity Lake Cold Water Pool Volume ≤52°F

17 - Trinity Lake Cold Water Pool Volume ≤50°F

18 - Trinity Lake Cold Water Pool Volume ≤48°F

19 - Trinity Lake Cold Water Pool Volume ≤52°F - Percent Exceedances

20 - Trinity Lake Cold Water Pool Volume ≤50°F - Percent Exceedances

21 - Trinity Lake Cold Water Pool Volume ≤48°F - Percent Exceedances

22 - Trinity Lake Cold Water Pool Comparison by Year

Trinity Lake Isothermobaths & Cold Water Pool Statistics

2023

14
15

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Isothermobaths Plot - 2023

<46 46-48 48-50 50-52 52-54 54-56 56-58 58-60

60-62 62-64 64-66 66-68 68-70 >70 Storage
16

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤52°F

Avg (2000-2022) 2014 2015 2016 2019 2022 2023
17

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤50°F

Avg (2000-2022) 2014 2015 2016 2019 2022 2023
18

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤48°F

Avg (2000-2022) 2014 2015 2016 2019 2022 2023
19

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤52°F - Percent Exceedances (2000-2022)

2023 95 90 75 50 25 10 5
20

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤50°F - Percent Exceedances (2000-2022)

2023 95 90 75 50 25 10 5
21

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤48°F - Percent Exceedances (2000-2022)

2023 95 90 75 50 25 10 5
May-18

2023 ≤52° ≤50° ≤48° Abs. Avg. ≤52° ≤50° ≤48° Abs. Avg.

2000 872 731 528 710 111 93 68 91

2001 636 519 330 495 81 66 42 63

2002 620 510 392 507 79 65 50 65

2003 1200 787 580 856 153 101 74 109

2004 916 712 462 697 117 91 59 89

2005 764 489 100 451 98 63 13 58

2006 1239 1145 1014 1133 158 146 130 145

2007 592 413 298 434 76 53 38 55

2008 338 175 1 171 43 22 0 22

2009 137 -9 -253 133 18 -1 -32 17

2010 484 340 53 293 62 43 7 37

2011 1005 852 694 850 128 109 89 109

2012 1038 1001 800 947 133 128 102 121

2013 520 428 234 394 67 55 30 50

2014 -13 -67 -159 80 -2 -9 -20 10

2015 -134 -211 -298 214 -17 -27 -38 27

2016 178 86 -22 95 23 11 -3 12

2017 972 814 612 800 124 104 78 102

2018 639 542 378 520 82 69 48 66

2019 1094 986 736 939 140 126 94 120

2020 593 478 318 463 76 61 41 59

2021 17 -37 -164 73 2 -5 -21 9

2022 -275 -379 -511 388 -35 -48 -65 50

2023 0 0 0 0 0 0 0 0

Trinity Cold Water Pool Comparison by Year (for Specified Date)

∆ TAF % ∆

Historic - Current (Historic - Current) / Current

22
Updated 05/18/2023 at 1320

Latest Profile Date: 05/09/2023

Page Description

24 - Whiskeytown Lake Isothermobaths Plot

25 - Whiskeytown Lake Cold Water Pool Volume ≤60°F

26 - Whiskeytown Lake Cold Water Pool Volume ≤58°F

27 - Whiskeytown Lake Cold Water Pool Volume ≤56°F

28 - Whiskeytown Lake Cold Water Pool Volume ≤60°F - Percent Exceedances

29 - Whiskeytown Lake Cold Water Pool Volume ≤58°F - Percent Exceedances

30 - Whiskeytown Lake Cold Water Pool Volume ≤56°F - Percent Exceedances

31 - Whiskeytown Lake Cold Water Pool Comparison by Year

Whiskeytown Lake Isothermobaths & Cold Water Pool Statistics

2023

23
24

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Isothermobaths Plot - 2023

<46 46-48 48-50 50-52 52-54 54-56 56-58 58-60

60-62 62-64 64-66 66-68 68-70 >70 Storage
25

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤60°F

Avg (2000-2022) 2014 2015 2016 2019 2022 2023
26

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤58°F

Avg (2000-2022) 2014 2015 2016 2019 2022 2023
27

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤56°F

Avg (2000-2022) 2014 2015 2016 2019 2022 2023
28

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤60°F - Percent Exceedances (2000-2022)

2023 95 90 75 50 25 10 5
29

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤58°F - Percent Exceedances (2000-2022)

2023 95 90 75 50 25 10 5
30

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤56°F - Percent Exceedances (2000-2022)

2023 95 90 75 50 25 10 5
May-09

2023 ≤60° ≤58° ≤56° Abs. Avg. ≤60° ≤58° ≤56° Abs. Avg.

2000 -18.2 -76.5 -113.7 69.5 -7.8 -32.8 -48.8 29.8

2001 -33.0 -60.5 -112.6 68.7 -14.2 -25.9 -48.3 29.5

2002 -35.5 -80.3 -100.5 72.1 -15.2 -34.5 -43.1 30.9

2003 4.9 4.4 3.8 4.4 2.1 1.9 1.6 1.9

2004 -63.0 -72.7 -87.4 74.4 -27.0 -31.2 -37.5 31.9

2005 -69.1 -73.0 -76.8 73.0 -29.7 -31.3 -33.0 31.3

2006 -25.8 -48.0 -72.8 48.9 -11.1 -20.6 -31.2 21.0

2007 -50.5 -69.2 -90.6 70.1 -21.7 -29.7 -38.9 30.1

2008 -15.7 -16.6 -29.7 20.7 -6.7 -7.1 -12.8 8.9

2009 -75.2 -88.4 -100.0 87.9 -32.3 -37.9 -42.9 37.7

2010 -4.0 -4.0 -52.3 20.1 -1.7 -1.7 -22.5 8.6

2011 -4.0 -12.9 -51.8 22.9 -1.7 -5.5 -22.2 9.8

2012 -81.4 -86.7 -97.2 88.5 -35.0 -37.2 -41.7 38.0

2013 -97.4 -99.4 -102.6 99.8 -41.8 -42.7 -44.0 42.8

2014 -8.2 -115.9 -122.0 82.0 -3.5 -49.8 -52.4 35.2

2015 -112.7 -118.6 -132.9 121.4 -48.4 -50.9 -57.0 52.1

2016 -51.7 -84.9 -108.5 81.7 -22.2 -36.5 -46.6 35.1

2017 -11.7 -61.1 -104.1 59.0 -5.0 -26.2 -44.7 25.3

2018 -64.5 -67.4 -72.4 68.1 -27.7 -28.9 -31.1 29.2

2019 -75.3 -86.8 -97.4 86.5 -32.3 -37.3 -41.8 37.1

2020 -69.0 -77.8 -100.0 82.3 -29.6 -33.4 -42.9 35.3

2021 -87.3 -92.4 -119.1 99.6 -37.5 -39.6 -51.1 42.7

2022 -11.4 -11.4 -134.8 52.6 -4.9 -4.9 -57.9 22.6

2023 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

∆ TAF % ∆

Whiskeytown Cold Water Pool Comparison by Year (for Specified Date)

Historic - Current (Historic - Current) / Current

31