Report Generated 05/01/2024 at 0759

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

April - 2024
Shasta 

Generation 

Spring 

Creek P.P.

Keswick 

Total BSF RDB

Mar 9436 1066 10134 51.8 53.3

04/01 51.1 49.6 47.0 50.4 51.1 51.7 # 54.1 ? 54.6 51.0 50.2 49.4 49.8 3771 44 4183 65.5 61.4 61.6

04/02 51.1 49.3 47.1 50.7 51.7 52.5 # 55.5 56.1 52.1 50.3 51.2 51.5 4109 44 4183 62.0 58.6 60.5

04/03 50.4 49.3 47.6 51.0 51.4 52.0 # 56.5 57.3 51.3 50.3 50.8 50.9 4110 61 4181 60.5 56.3 58.5

04/04 51.4 49.3 46.9 50.8 50.9 51.0 # 53.6 54.5 49.5 50.2 46.5 47.0 4155 44 4182 46.5 46.6 46.2

04/05 50.8 49.3 47.2 50.2 50.8 51.2 51.4 51.2 52.0 49.5 50.6 47.6 47.0 4063 44 4183 50.0 47.0 47.6

04/06 50.6 49.0 49.4 50.1 50.3 50.8 51.7 52.2 52.7 49.3 50.8 47.4 47.5 4094 185 4149 52.0 47.3 47.9

04/07 50.7 49.6 47.9 50.3 50.9 51.6 52.7 53.1 53.7 50.8 51.1 49.6 49.4 4129 44 4113 55.5 53.7 55.3

04/08 51.6 50.3 47.4 50.3 50.8 51.4 53.1 54.0 54.9 51.0 51.2 49.6 50.1 6251 44 6084 60.0 56.9 58.5

04/09 51.3 49.8 47.5 50.8 51.3 51.9 53.5 54.4 55.4 52.2 51.5 51.5 51.6 6089 44 6128 63.5 59.3 61.0

04/10 51.7 ? 50.1 47.5 51.4 51.9 52.6 54.5 55.7 ? 56.8 52.6 51.7 52.5 52.6 5820 44 6190 67.5 62.7 64.2

04/11 51.8 ? 50.4 48.4 51.4 52.2 53.0 55.2 56.6 57.8 53.3 52.0 53.1 53.0 6088 72 6110 66.0 63.2 65.7

04/12 52.2 50.2 47.5 51.4 51.6 52.0 54.0 56.2 57.8 51.8 52.0 51.3 51.2 8591 44 8017 63.0 61.4 61.8

04/13 51.6 50.0 47.5 50.7 50.8 51.2 52.3 53.2 54.3 50.7 52.1 49.5 49.1 8415 44 8086 53.0 51.4 50.9

04/14 51.2 49.8 47.4 50.6 50.7 50.8 51.1 51.3 52.1 49.6 52.0 48.5 48.2 8332 44 8049 ↑ 47.5 45.8 47.5

04/15 51.5 ? 50.4 47.6 50.3 50.9 51.4 52.2 52.1 52.5 51.7 52.3 51.0 50.3 7784 44 8040 61.5 56.4 57.3

04/16 51.6 ? 50.8 47.7 51.3 51.7 52.2 53.5 54.4 55.1 52.3 51.9 52.5 52.2 8219 44 8046 64.5 60.9 61.5

04/17 51.9 50.9 47.6 51.8 52.2 52.7 54.4 55.6 56.6 52.6 52.2 52.3 52.5 8512 43 8017 68.5 62.5 63.3

04/18 52.0 ? 51.1 47.7 52.0 52.4 53.0 54.7 55.9 57.0 52.6 52.2 52.6 52.8 8337 44 7948 70.0 62.1 64.2

04/19 51.7 50.5 48.4 52.2 52.7 53.4 55.2 56.5 57.7 53.2 51.3 52.3 53.4 8610 61 8056 67.0 63.8 66.1

04/20 51.5 # 49.5 52.1 52.7 53.4 55.5 57.2 58.5 53.3 50.9 51.9 52.7 7611 166 8076 68.0 65.6 67.4

04/21 52.1 50.9 49.8 51.8 52.5 53.2 55.5 57.3 58.7 53.5 50.3 51.6 52.0 7612 270 8052 72.0 65.8 68.6

04/22 52.3 ? 51.1 50.0 51.9 52.4 53.0 55.1 56.9 58.4 53.4 49.1 50.8 51.3 8082 432 8047 75.5 65.8 68.4

04/23 51.4 51.0 48.1 52.3 52.5 ? 52.9 54.6 56.3 57.6 53.0 ! 49.0 50.1 11598 47 10910 64.0 60.8 62.0

04/24 52.0 ? 50.9 48.0 51.8 52.2 52.7 54.5 55.8 56.9 53.4 # 48.1 # 10842 45 10909 67.0 63.2 63.4

04/25 52.1 51.1 48.0 51.8 51.9 52.2 53.5 55.1 56.5 52.2 # 47.2 # 12053 44 10903 62.0 59.6 59.8

04/26 52.8 51.7 47.9 51.7 52.0 52.4 53.6 54.4 55.4 52.5 # 47.0 # 11348 44 10935 63.0 58.5 60.4

04/27 53.0 51.5 48.2 52.6 52.8 53.2 54.2 54.7 55.7 52.4 # 47.1 # 8212 48 9315 62.5 57.9 60.8

04/28 52.9 ? 51.7 48.0 52.5 53.0 53.6 55.1 56.1 57.1 52.9 # 47.6 # 8383 44 8012 65.0 61.5 63.7

04/29 52.6 ? 51.9 48.1 52.9 53.3 53.9 55.2 56.3 57.6 52.4 # 47.9 # 7398 44 7069 61.0 57.2 61.3

04/30 53.2 ? 52.2 48.1 52.9 53.4 54.0 55.6 56.7 57.9 52.3 # 47.9 # 6966 44 6149 61.5 58.6 60.9

-

Apr 7319 76 7211 62.2 58.4 59.9

219584 2266 216322

Legend Notes 435536 4495 429066

? = 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 3 for more details)

↑ = Record high air temperature

↓ = Record low air temperature

 = Monthly Averages

Total AF

51.5 49.3

RDB

56.0 52.0

LWS

51.2 49.9

DGC

46.5

Mean Daily Air 

Temperatures (°F)

RDD

55.1

Total CFS

50.7

Mean Daily 

Release (CFS)

NFH

47.0

Mean Daily Water Temperatures (°F)

48.5

BND IGO

51.4

BSF

52.4 55.0

48.6 49.4 49.8 50.0 50.7 51.1

D

A

T

E

50.6 48.8

CCR2 TCD SAC 1 SHD SPP1 KWK

51.7 50.5 48.0 51.8 53.9

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 CCR 53.5 05/14/2023 TBD

SHD Sacramento River 0.3 miles downstream of Shasta Power Plant Click Here

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

30

36

42

48

54

60

66

72

78

84

90

40

42

44

46

48

50

52

54

56

58

60

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

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

DGC Trinity River 19 miles downstream of Lewiston Dam Click Here

NFH Trinity River 38 miles downstream of Lewiston Dam Click Here

 Notes

1 Distances are approximate

Station Details Water Right Temperature Control Points

30

36

42

48

54

60

66

72

78

84

90

27

32

37

42

47

52

57

62

67

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

Air Temperature (°F)

Water Temperature (°F)

Trinity River Mean Daily Temperatures

Redding Air (Observed and Forecasted) LWS DGC NFH

4
Updated 04/17/2024 at 1445

Latest Profile Date: 04/17/2024

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

2024

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 - 2024

<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 (1998-2023) 2014 2015 2016 2019 2022 2023 2024
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 (1998-2023) 2014 2015 2016 2019 2022 2023 2024
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 (1998-2023) 2014 2015 2016 2019 2022 2023 2024
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 (1998-2023)

2024 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 (1998-2023)

2024 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 (1998-2023)

2024 95 90 75 50 25 10 5
Apr-17

2024 ≤52° ≤50° ≤48° Abs. Avg. ≤52° ≤50° ≤48° Abs. Avg.

1998 396 83 1125 535 13 3 98 38

1999 586 365 1032 661 20 13 90 41

2000 -294 -546 175 338 -10 -20 15 15

2001 -199 -223 885 435 -7 -8 77 31

2002 146 75 734 319 5 3 64 24

2003 -117 -394 191 234 -4 -14 17 12

2004 -190 -181 357 242 -6 -7 31 15

2005 -301 -407 22 243 -10 -15 2 9

2006 962 931 737 877 32 34 64 43

2007 -182 -181 775 379 -6 -7 68 27

2008 -640 -1029 277 649 -21 -37 24 28

2009 -1173 -1099 353 875 -39 -40 31 37

2010 463 -116 767 449 15 -4 67 29

2011 592 727 977 765 20 26 86 44

2012 856 -24 633 504 29 -1 55 28

2013 -234 -298 651 394 -8 -11 57 25

2014 -1417 -1495 -315 1076 -47 -54 -28 43

2015 -1349 -1411 -692 1151 -45 -51 -61 52

2016 90 -57 -93 80 3 -2 -8 4

2017 170 -188 1003 454 6 -7 88 33

2018 69 -170 70 103 2 -6 6 5

2019 681 173 1004 620 23 6 88 39

2020 -310 -688 -58 352 -10 -25 -5 13

2021 -1533 -1462 -249 1082 -51 -53 -22 42

2022 -1651 -1519 -153 1107 -55 -55 -13 41

2023 907 -66 1397 790 30 -2 122 52

2024 0 0 0 0 0 0 0 0

∆ TAF % ∆

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

Historical - Current (Historical - Current) / Current

13
Updated 04/12/2024 at 0903

Latest Profile Date: 04/11/2024

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

2024

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 - 2024

<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 (2000-2023) 2014 2015 2016 2019 2022 2023 2024
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 (2000-2023) 2014 2015 2016 2019 2022 2023 2024
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 (2000-2023) 2014 2015 2016 2019 2022 2023 2024
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 (2000-2023)

2024 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 (2000-2023)

2024 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 (2000-2023)

2024 95 90 75 50 25 10 5
Apr-11

2024 ≤52° ≤50° ≤48° Abs. Avg. ≤52° ≤50° ≤48° Abs. Avg.

2000 271 284 38 198 15 17 2 11

2001 -251 -181 -181 204 -14 -11 -12 12

2002 -122 -53 -10 62 -7 -3 -1 3

2003 238 188 -109 178 13 11 -7 10

2004 -19 -19 -16 18 -1 -1 -1 1

2005 -103 -373 -427 301 -6 -22 -28 18

2006 394 531 395 440 21 31 25 26

2007 -61 -117 -77 85 -3 -7 -5 5

2008 -223 -106 -271 200 -12 -6 -17 12

2009 -627 -624 -858 703 -34 -37 -55 42

2010 -458 -393 -483 445 -25 -23 -31 26

2011 268 371 338 325 15 22 22 19

2012 122 162 254 179 7 10 16 11

2013 299 74 -126 166 16 4 -8 10

2014 -689 -610 -738 679 -38 -36 -48 40

2015 -928 -892 -824 881 -50 -52 -53 52

2016 -611 -542 -496 550 -33 -32 -32 32

2017 210 196 181 195 11 12 12 12

2018 -54 -102 -113 90 -3 -6 -7 5

2019 256 392 189 279 14 23 12 16

2020 -2 -96 -329 142 0 -6 -21 9

2021 -749 -721 -744 738 -41 -42 -48 44

2022 -1170 -1125 -1092 1129 -64 -66 -70 67

2023 -919 -783 -633 779 -50 -46 -41 46

2024 0 0 0 0 0 0 0 0

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

∆ TAF % ∆

Historical - Current (Historical - Current) / Current

22
Updated 04/10/2024 at 1227

Latest Profile Date: 04/10/2024

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

2024

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 - 2024

<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 (2000-2023) 2014 2015 2016 2019 2022 2023 2024
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 (2000-2023) 2014 2015 2016 2019 2022 2023 2024
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 (2000-2023) 2014 2015 2016 2019 2022 2023 2024
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 (2000-2023)

2024 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 (2000-2023)

2024 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 (2000-2023)

2024 95 90 75 50 25 10 5
Apr-10

2024 ≤60° ≤58° ≤56° Abs. Avg. ≤60° ≤58° ≤56° Abs. Avg.

2000 -5.0 -5.0 -62.1 24.0 -2.2 -2.2 -27.4 10.6

2001 -12.1 -28.6 -65.1 35.2 -5.3 -12.6 -28.7 15.5

2002 -10.2 -43.8 -58.5 37.5 -4.5 -19.3 -25.8 16.5

2003 -12.2 -12.2 -12.2 12.2 -5.4 -5.4 -5.4 5.4

2004 -13.4 -28.9 -54.1 32.1 -5.9 -12.7 -23.9 14.2

2005 -3.9 -3.9 -3.9 3.9 -1.7 -1.7 -1.7 1.7

2006 -9.6 -9.6 -9.6 9.6 -4.2 -4.2 -4.2 4.2

2007 -22.0 -24.2 -36.2 27.5 -9.7 -10.7 -16.0 12.1

2008 -10.0 -10.0 -12.6 10.8 -4.4 -4.4 -5.5 4.8

2009 -25.6 -28.4 -31.0 28.3 -11.3 -12.5 -13.7 12.5

2010 -6.6 -6.6 -6.6 6.6 -2.9 -2.9 -2.9 2.9

2011 4.3 4.3 0.4 3.0 1.9 1.9 0.2 1.3

2012 -60.3 -64.1 -71.8 65.4 -26.6 -28.3 -31.7 28.8

2013 -33.2 -33.6 -40.8 35.8 -14.6 -14.8 -18.0 15.8

2014 -19.4 -19.4 -35.0 24.6 -8.6 -8.6 -15.4 10.9

2015 -23.2 -23.4 -23.9 23.5 -10.2 -10.3 -10.5 10.3

2016 0.8 -5.0 -21.6 9.1 0.4 -2.2 -9.5 4.0

2017 -4.3 -14.6 -23.5 14.1 -1.9 -6.4 -10.3 6.2

2018 -27.5 -28.0 -28.9 28.1 -12.1 -12.4 -12.7 12.4

2019 -15.7 -15.7 -15.7 15.7 -6.9 -6.9 -6.9 6.9

2020 -6.8 -6.8 -44.9 19.5 -3.0 -3.0 -19.8 8.6

2021 -12.2 -12.2 -74.3 32.9 -5.4 -5.4 -32.8 14.5

2022 -6.1 -6.1 -6.1 6.1 -2.7 -2.7 -2.7 2.7

2023 5.5 5.5 5.5 5.5 2.4 2.4 2.4 2.4

2024 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)

Historical - Current (Historical - Current) / Current

31