Report Generated 09/04/2023 at 2321

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

August - 2023
Shasta 

Generation 

Spring 

Creek P.P.

Keswick 

Total BSF RDB

Jul 9721 501 10648 81.0 80.6

08/01 49.8 48.6 52.8 50.5 51.0 51.8 53.5 55.2 57.1 55.9 53.6 # 67.1 9696 519 10851 82.5 76.1 76.6

08/02 49.6 48.3 52.9 50.5 51.2 52.0 53.8 55.5 ? 57.4 55.9 53.6 # 66.8 9542 498 10781 80.0 74.7 73.5

08/03 49.7 48.4 52.9 50.3 50.9 51.7 53.8 55.7 57.8 56.2 53.7 # 66.5 9663 504 10567 78.5 73.4 72.0

08/04 49.7 48.4 53.0 50.4 51.1 51.9 53.8 55.7 ? 57.8 56.3 54.0 # 66.7 9749 500 10603 83.5 77.3 75.8

08/05 49.7 48.3 53.2 50.5 51.2 52.0 54.0 56.0 ? 58.1 56.8 54.1 # 67.4 9717 492 10588 87.0 82.3 84.8

08/06 49.3 ? 48.2 53.3 50.4 51.0 52.0 54.2 56.3 58.5 57.0 54.1 # 67.6 8780 515 10530 92.5 85.2 87.5

08/07 49.6 48.5 53.3 50.2 50.8 51.8 54.0 56.1 ? 58.5 56.9 54.1 # 67.6 9626 491 10509 95.0 86.3 86.9

08/08 50.1 48.8 53.6 50.3 50.9 51.7 53.6 55.5 57.8 56.8 53.7 # 67.7 9556 489 10450 84.5 78.2 78.1

08/09 50.2 48.9 53.6 50.6 51.1 51.8 53.6 55.4 57.5 56.5 ? 53.3 ! 61.5 67.3 9736 501 10492 79.5 73.8 74.5

08/10 49.7 48.6 53.6 50.8 51.4 52.1 ? 54.0 55.7 57.6 56.5 52.8 61.3 67.0 9267 627 10284 81.5 75.8 76.4

08/11 50.0 48.6 53.8 50.6 ? 51.3 52.1 54.2 56.0 ? 57.9 56.7 52.5 61.3 67.5 9465 495 10242 80.5 75.4 75.0

08/12 # ? 48.7 53.9 50.9 51.5 52.2 54.0 55.9 58.1 57.2 52.5 61.6 67.7 2342 697 10243 85.5 79.0 78.0

08/13 # 48.7 54.2 50.9 51.6 52.5 54.5 56.5 58.5 57.5 52.4 61.9 68.4 9477 494 10241 ↑ 91.5 83.4 83.9

08/14 50.3 48.9 54.6 50.9 51.5 52.4 54.6 56.6 58.7 57.9 52.5 61.9 68.4 9243 501 10240 90.0 81.6 82.8

08/15 50.4 ? 49.1 54.8 51.2 51.8 52.6 54.5 56.4 ? 58.5 58.0 53.1 62.6 69.1 9055 525 10236 93.0 87.6 88.1

08/16 50.5 ? 49.2 54.7 51.3 52.0 52.8 54.9 56.9 59.0 57.9 53.0 62.1 68.6 9168 513 10054 ↑ 94.5 90.0 89.0

08/17 50.4 ? 49.1 54.7 51.3 51.9 52.7 54.7 56.9 59.2 57.5 53.1 60.4 67.0 8829 708 10012 94.5 89.9 89.3

08/18 49.5 48.4 55.3 51.1 51.7 52.6 54.8 56.7 ? 58.9 58.2 52.4 60.6 65.9 8423 564 9944 86.5 80.0 79.8

08/19 49.5 ? 48.4 55.4 50.8 51.5 52.5 54.7 56.7 ? 58.9 58.1 52.5 58.4 64.8 8248 627 9563 87.0 80.7 79.7

08/20 49.5 48.4 55.5 50.4 50.8 51.5 53.4 55.5 57.6 56.6 52.3 56.3 61.7 8937 479 9644 83.5 78.9 79.1

08/21 49.7 48.7 55.8 49.8 50.0 50.6 52.4 54.1 55.8 56.4 ? 51.2 53.2 56.5 8914 544 9613 75.5 71.1 72.3

08/22 49.8 ? 48.7 55.8 50.1 50.5 51.2 52.8 54.1 55.4 57.5 49.5 52.9 55.4 8408 570 9253 77.0 73.2 73.2

08/23 49.6 48.6 56.3 50.7 51.3 52.1 53.9 55.6 57.2 58.2 48.8 53.6 57.1 8093 496 9111 82.0 76.7 77.4

08/24 49.6 ? 48.9 56.3 50.7 51.3 52.2 54.3 56.3 ? 58.1 58.2 49.1 54.4 59.8 7726 524 9104 83.5 77.3 79.0

08/25 49.8 48.9 56.5 50.6 51.2 52.0 54.2 56.3 58.3 58.1 49.8 55.1 60.3 8013 499 9109 82.0 75.5 75.5

08/26 49.9 49.0 56.6 50.7 51.3 52.0 53.9 55.8 57.7 57.7 50.4 56.3 61.2 8243 508 9110 79.5 72.7 75.0

08/27 50.0 49.0 56.9 50.8 51.3 52.0 53.9 55.6 57.4 57.6 50.7 57.3 62.4 7754 438 9102 79.5 73.0 75.2

08/28 50.1 ? 49.1 57.0 50.7 51.2 51.9 53.8 55.6 57.3 57.6 50.9 57.6 62.8 8353 493 9107 80.0 74.1 76.4

08/29 50.2 49.2 57.4 50.8 51.2 51.9 53.6 55.3 57.1 57.9 50.8 57.4 62.1 8191 492 9109 78.5 73.9 78.3

08/30 50.2 ? 49.4 57.4 50.9 51.5 52.4 54.1 55.7 57.2 59.2 50.9 56.7 61.8 8291 553 8898 87.5 81.7 83.4

08/31 49.5 48.8 57.7 51.1 51.5 52.1 54.1 55.8 57.5 58.8 51.0 56.1 60.8 7683 498 8637 78.0 73.1 74.1

Aug 8684 529 9920 84.5 78.6 79.2

268188 16354 306227

Legend Notes 531940 32437 607389

? = 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 reporting inorrect water temperatures from 7/23 - 8/9 due to probe being

↓ = Record low air temperature buried in fine sediment

 = Monthly Averages

49.9 48.7 54.8 51.2 54.0

D

A

T

E

49.9 48.5

CCR2 TCD SAC 1 SHD SPP1 KWK

51.8 50.3 51.0 51.9 54.1 56.3

Mean Daily Air 

Temperatures (°F)

RDD

86.0

Total CFS

64.7

Mean Daily 

Release (CFS)

NFH

66.7

Mean Daily Water Temperatures (°F)

53.6

BND IGO

50.7

BSF

52.0 55.9

Total AF

58.6 56.2

RDB

57.8 57.3

LWS

52.2 58.4

DGC3

-

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

40

48

56

64

72

80

88

96

104

112

120

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 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 reporting incorrect water temperatures from and 7/23 - 8/9 

due to probe being buried in fine sediment

Station Details Water Right Temperature Control Points

55

61

67

73

79

85

91

97

103

109

115

40

43

46

49

52

55

58

61

64

67

70

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 08/30/2023 at 1608

Latest Profile Date: 08/30/2023

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
Aug-30

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

1998 -1019 -1116 -1117 1084 -61 -75 -89 75

1999 -656 -620 -591 623 -39 -42 -47 43

2000 -1094 -1091 -1104 1097 -65 -74 -88 76

2001 -1145 -1042 -900 1029 -69 -70 -72 70

2002 -846 -816 -757 806 -51 -55 -61 55

2003 -937 -1110 -1160 1069 -56 -75 -93 75

2004 -1282 -1172 -1047 1167 -77 -79 -84 80

2005 -1209 -1157 -1068 1145 -72 -78 -86 79

2006 -813 -835 -811 820 -49 -56 -65 57

2007 -1139 -1017 -881 1013 -68 -69 -71 69

2008 -1341 -1188 -992 1174 -80 -80 -79 80

2009 -1208 -1089 -935 1077 -72 -73 -75 73

2010 -458 -561 -670 563 -27 -38 -54 40

2011 -357 -415 -464 412 -21 -28 -37 29

2012 -701 -655 -693 683 -42 -44 -56 47

2013 -1055 -952 -839 949 -63 -64 -67 65

2014 -1425 -1266 -1113 1268 -85 -85 -89 87

2015 -1187 -1107 -1118 1137 -71 -75 -90 78

2016 -484 -500 -787 591 -29 -34 -63 42

2017 -466 -532 -632 543 -28 -36 -51 38

2018 -796 -819 -900 838 -48 -55 -72 58

2019 -345 -398 -552 432 -21 -27 -44 31

2020 -1047 -1013 -1006 1022 -63 -68 -81 70

2021 -1406 -1264 -1122 1264 -84 -85 -90 86

2022 -1315 -1187 -1015 1172 -79 -80 -81 80

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 08/10/2023 at 1428

Latest Profile Date: 08/10/2023

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
Aug-10

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

2000 224 151 85 153 27 21 16 21

2001 73 78 90 80 9 11 17 12

2002 86 112 145 115 10 16 27 18

2003 456 319 217 331 55 45 40 47

2004 118 71 5 65 14 10 1 8

2005 300 229 39 189 36 32 7 25

2006 447 395 285 376 54 56 52 54

2007 131 163 201 165 16 23 37 25

2008 -153 -158 -159 157 -19 -22 -29 23

2009 -242 -219 -209 223 -29 -31 -38 33

2010 103 50 -70 74 12 7 -13 11

2011 564 504 387 485 68 71 71 70

2012 396 439 446 427 48 62 82 64

2013 -60 -28 -15 34 -7 -4 -3 5

2014 -478 -400 -310 396 -58 -56 -57 57

2015 -505 -441 -353 433 -61 -62 -65 63

2016 -312 -316 -254 294 -38 -45 -46 43

2017 239 172 124 179 29 24 23 25

2018 179 211 240 210 22 30 44 32

2019 509 519 483 504 61 73 88 74

2020 41 97 91 76 5 14 17 12

2021 -413 -340 -256 336 -50 -48 -47 48

2022 -555 -470 -363 463 -67 -66 -67 67

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 08/08/2023 at 1453

Latest Profile Date: 08/08/2023

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
Aug-08

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

2000 58.7 70.7 71.5 67.0 72.4 111.6 144.6 109.5

2001 77.8 82.9 67.9 76.2 96.0 130.8 137.3 121.4

2002 74.3 75.4 43.8 64.5 91.7 118.9 88.7 99.8

2003 67.3 63.0 22.6 51.0 83.0 99.5 45.8 76.1

2004 73.9 68.2 31.6 57.9 91.2 107.7 64.0 87.6

2005 12.7 -16.3 -30.2 19.7 15.6 -25.7 -61.0 34.1

2006 88.1 89.5 63.4 80.3 108.6 141.2 128.2 126.0

2007 78.4 73.3 45.6 65.8 96.7 115.7 92.2 101.5

2008 79.4 80.0 53.4 70.9 97.9 126.2 108.1 110.8

2009 40.0 8.4 -32.6 27.0 49.3 13.3 -65.9 42.8

2010 12.4 -21.8 -28.5 20.9 15.3 -34.4 -57.7 35.8

2011 58.4 52.7 15.6 42.2 72.1 83.2 31.5 62.3

2012 55.7 32.0 -23.8 37.2 68.7 50.6 -48.1 55.8

2013 92.7 98.0 84.5 91.7 114.3 154.7 170.9 146.7

2014 71.4 59.5 -30.0 53.7 88.1 93.9 -60.8 80.9

2015 12.1 -45.1 -36.9 31.3 14.9 -71.2 -74.6 53.5

2016 35.7 14.1 -23.7 24.5 44.1 22.3 -48.0 38.1

2017 74.1 74.9 52.0 67.0 91.4 118.3 105.2 105.0

2018 55.3 44.2 -6.5 35.3 68.2 69.8 -13.1 50.4

2019 50.7 39.7 3.0 31.1 62.5 62.6 6.0 43.7

2020 35.9 17.1 -10.5 21.1 44.2 26.9 -21.2 30.8

2021 60.2 33.8 -17.1 37.0 74.2 53.4 -34.5 54.1

2022 -17.0 -17.2 -19.1 17.8 -20.9 -27.2 -38.6 28.9

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