Sacramento River Temperature Task Group Thursday, March 26, 2020 1:00 pm – 3:00 pm Conference Call Only: Join from PC, Mac, Linux, iOS or Android: https://meetings.ringcentral.com/j/5306224350 Or iPhone one-tap : US: +1(623)4049000,,5306224350# (US West) Or Telephone: Dial(for higher quality, dial a number based on your current location): US: +1(623)4049000 (US West) Meeting ID: 530 622 4350 International numbers available: https://meetings.ringcentral.com/teleconference Agenda 1. Introductions 2. Purpose and Objective 3. 2020 Meeting Logistics 4. Long Term Operations Implementation - Update 5. Hydrology Update 6. Operations Update and Forecasts a. Storage/Release Management Conditions b. Temperature Management 7. River Fish Monitoring: carcass surveys, redd counts, stranding and dewatering surveys and sampling at rotary screw traps 8. Fish Distribution/Forecasts: Estimated percentage of the population upstream of Red Bluff Diversion Dam for steelhead, winter-run and spring-run Chinook salmon, steelhead update and Livingston Stone Hatchery. 9. Seasonal Topics 10. Discussion 11. Review Action Items 12. Next Meeting Scheduling UNITED STATES DEPARTMENT OF THE INTERIOR U.S. BUREAU OF RECLAMATION-CENTRAL VALLEY PROJECT-CALIFORNIA DAILY CVP WATER SUPPLY REPORT MARCH 24, 2020 RUN DATE: March 25, 2020 RESERVOIR RELEASES IN CUBIC FEET/SECOND 15 YR RESERVOIR DAM WY 2019 WY 2020 MEDIAN TRINITY LEWISTON 318 303 303 SACRAMENTO KESWICK 10,188 4,569 3,798 FEATHER OROVILLE (SWP) 9,500 1,750 1,750 AMERICAN NIMBUS 4,887 1,516 1,516 STANISLAUS GOODWIN 4,504 206 428 SAN JOAQUIN FRIANT 2,987 0 286 STORAGE IN MAJOR RESERVOIRS IN THOUSANDS OF ACRE-FEET % OF 15 RESERVOIR CAPACITY 15 YR AVG WY 2019 WY 2020 YR AVG TRINITY 2,448 1,715 1,881 2,000 117 SHASTA 4,552 3,491 3,827 3,567 102 FOLSOM 977 602 681 466 77 NEW MELONES 2,420 1,562 2,025 1,892 121 FED. SAN LUIS 966 724 965 513 71 TOTAL NORTH CVP 11,363 8,094 9,379 8,438 104 MILLERTON 520 306 389 0 0 OROVILLE (SWP) 3,538 2,378 2,724 2,274 96 ACCUMULATED INFLOW FOR WATER YEAR TO DATE IN THOUSANDS OF ACRE-FEET CURRENT 15 YR % OF 15 RESERVOIR WY 2020 WY 1977 WY 1983 AVG YR AVG TRINITY 218 73 1,155 540 40 SHASTA 1,801 1,341 6,512 2,968 61 FOLSOM 601 188 3,321 1,328 45 NEW MELONES 280 ---- 1,079 437 64 MILLERTON 331 107 1,514 446 74 ACCUMULATED PRECIPITATION FOR WATER YEAR TO DATE IN INCHES CURRENT AVG % OF LAST RESERVOIR WY 2020 WY 1977 WY 1983 (N YRS) AVG 24 HRS TRINITY AT 13.98 8.91 47.62 26.16 53 0.08 FISH HATCHERY ( 58) SACRAMENTO AT 26.14 10.28 96.11 50.93 51 0.00 SHASTA DAM ( 63) AMERICAN AT 32.76 14.89 90.03 54.48 60 1.08 BLUE CANYON ( 45) STANISLAUS AT 17.38 ---- 40.06 22.60 77 0.05 NEW MELONES ( 42) SAN JOAQUIN AT 18.80 10.30 72.00 33.51 56 0.00 HUNTINGTON LK ( 45) Upper Sacramento River Summary Conditions – March (On-going): Storage/Release Management Conditions: • Reservoir Inflow Uncertainty: Shorter term forecasts (8-14 day) suggest a below normal chance of precipitation • Longer term forecasts (three-month outlook) suggest below normal chance of precipitation • Dry pattern persisting and March inflows also falling below the 90% inflow exceedance probability estimates • Current release from Keswick Dam: Current release at 4,500 cfs, Friday, March 27, 2020 increasing to 5,000 cfs for Delta salinity requirements. • Long-term conservative (hydrology) projections suggest lower Shasta storage volumes Temperature Management: • Temperature management: inactive • Selective withdrawal: Rebuilding cold-water-pool reserves. All Upper and Middle gates open due to storage elevation restrictions. Long term conservative (hydrology) projections suggest not reaching a TCD configuration with only the Top Gates. • Meteorological Uncertainty: Shorter term forecasts (8-14 day) suggest normal to above normal temperatures • Longer term forecasts (three-month outlook) suggest above normal chances of warmer temperatures Resources: • Reclamation Bay Delta website: https://www.usbr.gov/mp/bdo/lto/index.html • LTO Proposed Action: https://www.usbr.gov/mp/bdo/docs/ba-chapter-4-proposed-action.pdf • 2019 Biological Opinions: https://www.usbr.gov/mp/bdo/lto/biop.html • Excellent link for short term precipitation forecasts, overlay with burn areas, debris flow potential, etc: https://www.cnrfc.noaa.gov/ • Comprehensive Upper Sacramento fishery information: https://www.calfish.org/ProgramsData/ConservationandManagement/CentralValleyMonitoring /CDFWUpperSacRiverBasinSalmonidMonitoring.aspx • SacPAS: Central Valley Prediction & Assessment of Salmon: http://www.cbr.washington.edu/sacramento/ • Bulletin 120 Forecast Updates: http://cdec.water.ca.gov/b120up.html Northern Sierra Precipitation: 8-Station Index, March 25, 2020 100 Mount Shasta City Shasta Dam Percent of Average for this Date: 56% Mineral 95 Quincy 94.7 Brush Creek 2016-2017 Daily Precip (wettest) 90 Sierraville RS Blue Canyon 1982-1983 (2nd wettest) 88.5 85 Pacific House 1997-1998 82.4 80 75 70 2018-2019 Daily Precip 70.7 65 60 55 Average (1966-2015) 51.8 50 45 2017-2018 Daily Precip 40 41.0 2014-2015 Daily Precip 37.2 35 30 Total Water Year Precipitation Current: 23.6 25 Cumulative Daily/Monthly Precipitation (inches) 20 1976-1977(2nd driest & driest thru Aug) 19.0 15 10 5 0 Oct 1 Nov 1 Dec 1 Jan 1 Feb 1 Mar 1 Apr 1 May 1 Jun 1 Jul 1 Aug 1 Sep 1 Oct 1 Water Year (October 1 - September 30) California Snow Water Content, March 25, 2020, Percent of April 1 Average 250 North Percent of Average for this Date: 53% 1982-1983 (max) 200 2018-2019 2016-2017 150 100 2017-2018 53 Average 50 1976-1977 0 2014-2015 (min) 250 Central Percent of Average for this Date: 55% 1982-1983 (max) 200 2016-2017 150 2018-2019 100 2017-2018 55 Average 50 1976-1977 0 2014-2015 (min) 250 South Percent of Average for this Date: 42% 1982-1983 (max) 200 2016-2017 150 2018-2019 100 2017-2018 50 42 Average 1976-1977 0 2014-2015 (min) Dec Jan Feb Mar Apr May Jun Jul Statewide Percent of April 1: 51% Statewide Percent of Average for Date: 51% CVP Northern System Operation Outlooks: Draft March 2020 90% Runoff Exceedance Outlook End of Month Storage/Elevation Mar Apr May Jun Jul Aug Shasta Volume (TAF) 3579 3565 3384 2932 2453 2075 Shasta Elevation (Feet) 1032 1031 1024 1005 982 962 Monthly Average River Release Mar Apr May Jun Jul Aug Sacramento (CFS) 4800 7300 8500 11900 11500 9750 Clear Creek (CFS) 275 200 200 200 150 150 Trinity Diversions Mar Apr May Jun Jul Aug Carr Power Plant (TAF) 58 119 96 100 100 101 Spring Creek PP (TAF) 60 90 90 90 90 90 50% Runoff Exceedance Outlook End of Month Storage/Elevation Mar Apr May Jun Jul Aug Shasta Volume (TAF) 3579 3717 3602 3169 2611 2190 Shasta Elevation (Feet) 1032 1037 1033 1015 990 968 Monthly Average River Release Mar Apr May Jun Jul Aug Sacramento (CFS) 4800 6500 8000 12500 13500 11000 Clear Creek (CFS) 200 218 380 288 150 150 Trinity Diversions Mar Apr May Jun Jul Aug Carr Power Plant (TAF) 36 111 49 101 99 100 Spring Creek PP (TAF) 60 90 40 90 90 90 Notes: Inflow is based on the DWR B120 90% or 50% inflow exceedance Outlook; Historical inflows are used in the month of October and future months. CVP actual operations do not follow any forecasted operation or outlook; actual operations are based on real-time conditions. CVP operational forecasts or outlooks consider general system-wide dynamics and do not necessarily address specific watershed/tributary details. CVP releases represent monthly averages. CVP operations are updated monthly as new hydrology information is made available December through May. Estimated CVP Operations 90% Exceedance Assumes Shasta Non-Critical, 15% Ag, 65% M, 50% NoD Storages Federal End of the Month Storage/Elevation (TAF/Feet) Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Trinity 2024 1991 1900 1756 1615 1485 1328 1173 1132 1097 1079 1077 1105 Elev. 2340 2334 2323 2312 2302 2288 2274 2269 2266 2264 2264 2267 Whiskeytown 205 206 238 238 238 238 238 238 206 206 206 206 206 Elev. 1199 1209 1209 1209 1209 1209 1209 1199 1199 1199 1199 1199 Shasta 3546 3579 3565 3384 2932 2453 2075 1879 1781 1806 1861 1973 2139 Elev. 1032 1031 1024 1005 982 962 950 944 946 949 956 965 Folsom 447 449 495 492 433 341 271 250 251 255 271 295 345 Elev. 410 416 415 408 394 382 378 378 379 382 386 395 New Melones 1930 1891 1835 1742 1650 1561 1488 1443 1406 1407 1411 1415 1415 Elev. 1042 1037 1028 1019 1010 1002 997 993 993 993 994 994 San Luis 290 338 285 151 -26 -192 -230 -145 -81 -81 2 198 176 Elev. 473 463 442 415 382 367 376 391 408 438 466 453 Total 8454 8318 7762 6842 5887 5170 4838 4694 4690 4830 5165 5385 Monthly River Releases (TAF/cfs) Trinity TAF 18 36 92 47 28 53 52 23 18 18 18 17 cfs 300 600 1,498 783 450 857 870 373 300 300 300 300 Clear Creek TAF 17 12 12 12 9 9 9 12 12 12 12 11 cfs 275 200 200 200 150 150 150 200 200 200 200 200 Sacramento TAF 295 434 523 708 707 599 416 338 223 215 215 222 cfs 4800 7300 8500 11900 11500 9750 7000 5500 3750 3500 3500 4000 American TAF 92 84 86 107 136 111 60 40 39 40 40 56 cfs 1500 1413 1406 1800 2210 1808 1010 658 654 650 650 1000 Stanislaus TAF 37 29 25 9 9 9 9 35 12 12 13 12 cfs 600 480 410 150 150 150 150 577 200 200 213 214 Trinity Diversions (TAF) Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Carr PP 58 119 96 100 100 101 100 24 30 21 15 10 Spring Crk.