Workgroups & Teams

WY2025 Current Conditions for the Salmon Monitoring Team

DCC Operations

graphic Catch Index Knights Landing, Sacramento Trawls, Sacramento Beach Seines (10/1/2024 - 12/31/2024)
Catch Index Knights Landing, Sacramento Trawls, Sacramento Beach Seines (10/1/2024 - 12/31/2024)
Alerts for Environmental Surrogates (Flow and Temperature)
Date Knights Landing RST: Winter Chinook: Catch Index Knights Landing RST: Older Chinook: Catch Index Sacramento Trawls: Older Chinook: Catch Index Sacramento Beach Seines: Older Chinook: Catch Index Alert: Catch Index > 5 Alert: Catch Index 3 < X ≤ 5
2024-12-30     1.6 2.3    
2024-12-29            
2024-12-28            
2024-12-27     3.2 5.3 SacBeach 5.3 SacTrawl 3.2
2024-12-26     0      
2024-12-25            
2024-12-24            
2024-12-23 0 0 0.8 0    
2024-12-22 0 0        
2024-12-21 0 0        
2024-12-20 0 0 0 1.3    
2024-12-19 7.8 8.2     KNLOlder 8.2
KNLWinter 7.8
 
2024-12-18 5.5 6.9 0.8 0 KNLOlder 6.9
KNLWinter 5.5
 
2024-12-17            
2024-12-16     2.4 4.8   SacBeach 4.8
2024-12-15            
2024-12-14            
2024-12-13 0 0        
2024-12-12 0 0 0 0    
2024-12-11 1.0 1.0 0 0    
2024-12-10 0 0        
2024-12-09 0 0 0 0    
2024-12-08 0.5 0.5        
2024-12-07 0 0        
2024-12-06 0.7 1.4 0 1.6    
2024-12-05 1.2 1.2        
2024-12-04 1.3 1.3 0 0    
2024-12-03 0 0        
2024-12-02     0 2.0    
2024-12-01            
2024-11-30            
2024-11-29       1.6    
2024-11-28            
2024-11-27     15.2 3.0 SacTrawl 15.2  
2024-11-26     27.2   SacTrawl 27.2  
2024-11-25     21.6 4.0 SacTrawl 21.6 SacBeach 4.0
2024-11-24            
2024-11-23            
2024-11-22       0    
2024-11-21 0 0 0      
2024-11-20 0 0 0 0    
2024-11-19 0 0        
2024-11-18 0 0 0 0    
2024-11-17 0 0        
2024-11-16 0 0        
2024-11-15 0 0 0 0    
2024-11-14 0 0 0      
2024-11-13 0 0   0    
2024-11-12 0 0 0 0    
2024-11-11 0 0        
2024-11-10 0 0        
2024-11-09 0 0        
2024-11-08 0 0 0 0    
2024-11-07 0 0        
2024-11-06 0 0 0 0    
2024-11-05 0 0        
2024-11-04 0 0 0 0    
2024-11-03 0 0        
2024-11-02 0 0        
2024-11-01 0 0   0    
2024-10-31 0 0 0      
2024-10-30 0 0 0 0    
2024-10-29 0 0        
2024-10-28 0 0 0 0    
2024-10-27 0 0        
2024-10-26 0 0        
2024-10-25 0 0 0 0    
2024-10-24 0 0        
2024-10-23 0 0 0 0    
2024-10-22 0 0        
2024-10-21 0 0 0 0    
2024-10-20 0 0        
2024-10-19 0.5 0.5        
2024-10-18 0 0 0 0    
2024-10-17 0 0 0 0    
2024-10-16 0 0 0      
2024-10-15 0 0   0    
2024-10-14 0 0        
2024-10-13 0 0        
2024-10-12 0 0        
2024-10-11 0 0 0 0    
2024-10-10 0 0        
2024-10-09 0 0 0 0    
2024-10-08 0 0        
2024-10-07     0 0    
2024-10-06            
2024-10-05            
2024-10-04 0 0 0 0    
2024-10-03 0 0        
2024-10-02 0 0 0 0    
2024-10-01 0 0        
0 value indicates sampling occurred. Calculations generated by SacPAS. Data Courtesy of USFWS Lodi and CDFW via StreamNet.

Part 1: DCC operations by Knights Landing or Sacramento Catch Indices (PA 4-56)
Monitoring period: 1 October-30 November
Water quality criteria per D-1641 are met and either the Knights Landing Catch Index or Sacramento Catch Index is greater than 5.0 fish per day (close until both < 3/day)
Water quality criteria per D-1641 are met, either Knights Landing Catch Index or the Sacramento Catch Index are greater than 3.0 fish per day but less than or equal to five fish per day. (closed for 3 days)

Alerts: Deer Creek, Mill Creek, Wilkins Slough, Knights Landing

Daily Average Flow and Temperature Last 7 Days
Date Mill Creek (MLM): mean daily flow (cfs) Mill Creek (MLM): flow percent change Mill Creek (MLM): Alert Deer Creek (DCV): mean daily flow (cfs) Deer Creek (DCV): flow percent change Deer Creek (DCV): Alert Wilkins Slough (WLK): mean daily flow (cfs) Knights Landing RST: water temperature (f) WLK-KNL: Alert
6/10/2025 515.8 38.7% Flow>95cfs 160.5 3.2% Flow>95cfs 5298.9    
6/9/2025 371.9 6.8% Flow>95cfs 155.5 -0.1% Flow>95cfs 5456.6    
6/8/2025 348.2 -1.4% Flow>95cfs 155.7 -1.2% Flow>95cfs 5437.0    
6/7/2025 353.1 -0.1% Flow>95cfs 157.5 -1.4% Flow>95cfs 5359.9    
6/6/2025 353.5 -4.8% Flow>95cfs 159.8 -0.5% Flow>95cfs 5576.6    
6/5/2025 371.2 -4.6% Flow>95cfs 160.6 -1.1% Flow>95cfs 5826.0    
6/4/2025 388.9 -6.1% Flow>95cfs 162.3 -1.5% Flow>95cfs 6193.3    
Calculations generated by SacPAS. Data Courtesy of CDEC and CDFW via StreamNet.

Monitor Deer Creek and Mill Creek for average daily flow >95 cfs or >50% change from prior day

Monitor for both conditions: Wilkins Slough average daily flow >7500 cfs and Knights Landing temperature <56.3F

Juvenile Sampling

Juvenile Sampling Summary for 06/04/2025-06/10/2025 (last 7 days) and 05/28/2025-06/03/2025 (previous 7 days)

Juvenile Sampling Summary for 06/04/2025-06/10/2025 (last 7 days) and 05/28/2025-06/03/2025 (previous 7 days)
Date RangeData ItemButte Creek Diversion and RSTTisdale Weir RSTKnights Landing RSTLower Feather River RSTLower Sacramento River RSTSacramento Trawls (@ Sherwood Harbor)Sacramento Beach SeinesChipps Island TrawlsMossdale Trawls
Date RangeData ItemButte Creek Diversion and RSTTisdale Weir RSTKnights Landing RSTLower Feather River RSTLower Sacramento River RSTSacramento Trawls (@ Sherwood Harbor)Sacramento Beach SeinesChipps Island TrawlsMossdale Trawls
06/04/2025-06/10/2025Min Sample Date2025-06-042025-06-102025-06-04
06/04/2025-06/10/2025Max Sample Date2025-06-092025-06-102025-06-09
06/04/2025-06/10/2025Days with Sampling010
06/04/2025-06/10/2025Fall Chinook903
06/04/2025-06/10/2025Spring Chinook000
06/04/2025-06/10/2025Winter Chinook000
06/04/2025-06/10/2025LateFall Chinook000
06/04/2025-06/10/2025Chinook (ad-clip)000
06/04/2025-06/10/2025Steelhead (natural)000
06/04/2025-06/10/2025Steelhead (ad-clip)000
06/04/2025-06/10/2025Avg Flow (cfs)216.57361.45592.64432.813147.313147.37880.61974.6
06/04/2025-06/10/2025Avg Water Temp (F)71.971.967.866.5
06/04/2025-06/10/2025Avg Turbidity (NTU)
05/28/2025-06/03/2025Min Sample Date2025-05-282025-05-282025-05-282025-05-282025-05-282025-05-29
05/28/2025-06/03/2025Max Sample Date2025-05-302025-06-022025-06-022025-06-032025-06-022025-06-03
05/28/2025-06/03/2025Days with Sampling360400
05/28/2025-06/03/2025Fall Chinook31127236
05/28/2025-06/03/2025Spring Chinook000000
05/28/2025-06/03/2025Winter Chinook000000
05/28/2025-06/03/2025LateFall Chinook000000
05/28/2025-06/03/2025Chinook (ad-clip)000000
05/28/2025-06/03/2025Steelhead (natural)000000
05/28/2025-06/03/2025Steelhead (ad-clip)000000
05/28/2025-06/03/2025Avg Flow (cfs)238.48912.67710.84961.517160.117160.113223.42331.8
05/28/2025-06/03/2025Avg Water Temp (F)49.550.369.669.666.965.7
05/28/2025-06/03/2025Avg Turbidity (NTU)13.12.216.1
source of Avg Flow (cfs)Butte Creek nr Chico (BCK)Colousa (COL)Wilkins Slough (WLK)Boyd's Landing (FSB)Verona (VON)Freeport (FPT)Freeport (FPT)Delta OutFlow (DTO)Vernalis (VNS)
source of Avg Water Temp (F)Butte CreekTisdale WeirKnights LandingLower Feather RiverLower Sacramento RiverHood (SRH)Hood (SRH)Chipps Island TrawlsVernalis (VNS)
source of Avg Turbidity (NTU)Butte CreekTisdale WeirKnights LandingLower Feather RiverLower Sacramento RiverSacramento TrawlsSacramento TrawlsChipps Island TrawlsMossdale Trawls
  • Butte Creek Diversion and RST: Preliminary data from CDFW via CalFish; subject to revision.
  • Tisdale Weir RST: Preliminary data from CDFW via CalFish and CDEC; subject to revision.
  • Knights Landing RST: Preliminary data from CDFW via CalFish and CDEC; subject to revision. Turbidity is a discrete measure. KNL measured in FTU which should be roughly equivalent to NTU.
  • Lower Feather River RST: Preliminary data from CDFW via CalFish; subject to revision.
  • Lower Sacramento River RST: Preliminary data from CDFW via CalFish; subject to revision.
  • Sacramento Trawls (@ Sherwood Harbor): Preliminary data from USFWS Lodi and CDEC; subject to revision.
  • Sacramento Beach Seines: Preliminary data from USFWS Lodi and CDEC; subject to revision.
  • Chipps Island Trawls: Preliminary data from USFWS Lodi and CDEC; subject to revision.
  • Mossdale Trawls: Preliminary data from USFWS Lodi and CDEC; subject to revision.
  • Averages: calculated for all non-null data points within the 7 day reporting period.

Historical Migration Pattern for "Today"

Average Percent by 06/10, with 95%CI, of annual emigrating population for juveniles of each species of interest captured at the following locations and salvaged at SWP and CVP Delta facilities
Species Red Bluff Diversion Dam Tisdale RST Knights Landing RST Sac Trawl (Sherwood) Catch Index Chipps Island Trawl Catch Index Salvage
Chinook, LAD Winter-run, Unclipped 100.0%
(100.0%,100.0%)
BY: 2015 - 2023
100.0%
(100.0%,100.0%)
BY: 2015 - 2023
100.0%
(100.0%,100.0%)
BY: 2015 - 2023
100.0%
(100.0%,100.0%)
BY: 2015 - 2023
100.0%
(100.0%,100.0%)
BY: 2015 - 2023
100.0%
(100.0%,100.0%)
WY: 2015 - 2024
Chinook, LAD Spring-run, Unclipped 100.0%
(99.9%,100.0%)
BY: 2015 - 2023
100.0%
(100.0%,100.0%)
BY: 2015 - 2023
100.0%
(100.0%,100.0%)
BY: 2015 - 2023
100.0%
(100.0%,100.0%)
BY: 2015 - 2023
100.0%
(100.0%,100.0%)
BY: 2015 - 2023
99.5%
(98.6%,100.3%)
WY: 2015 - 2024
Steelhead, Unclipped (January-December) 37.8%
(19.1%,56.4%)
BY: 2015 - 2024
86.7%
(65.8%,107.5%)
BY: 2015 - 2024
81.8%
(64.6%,99.0%)
BY: 2015 - 2024
97.9%
(93.0%,102.8%)
BY: 2015 - 2024
95.4%
(90.7%,100.0%)
BY: 2015 - 2024
 
Chinook, DNA Winter-run, Unclipped (Water Year)           100.0%
(100.0%,100.0%)
WY: 2020 - 2024
Steelhead, Unclipped (Water Year)           98.9%
(97.6%,100.3%)
WY: 2015 - 2024
Calculations generated by SacPAS Migration Timing and Conditions by Cohort and Salvage Timing. Data Courtesy of USFWS, Red Bluff; CDFW via StreamNet and CDEC; USFWS, Lodi.

Delta STARS Estimates

Current estimates generated by the Delta STARS tool. STARS Predicted Survival, Travel-Time and Routing for Late-Fall Run and Winter Run Chinook. Delta STARS developed by USGS Quantitative Fisheries Ecology Section and deployed by SacPAS.

Delta STARS Survival and Routing Estimates
StockDateRouteParameterEstimateLower 80% Credible LimitUpper 80% Credible Limit
Winter Chinook2025-06-10OverallMedian Travel Time6.67096.27217.3354
Winter Chinook2025-06-10OverallSurvival2.0538e-47.284e-81.6755e-4
Winter Chinook2025-06-10Sacramento RiverMedian Travel Time6.21367
Winter Chinook2025-06-10Sacramento RiverRouting Probability0.589390.54830.62564
Winter Chinook2025-06-10Sacramento RiverSurvival1.8347e-42.0524e-89.7826e-5
Winter Chinook2025-06-10Yolo BypassMedian Travel Time10.102911
Winter Chinook2025-06-10Yolo BypassRouting Probability000
Winter Chinook2025-06-10Yolo BypassSurvival0.280520.00498770.70304
Winter Chinook2025-06-10Sutter SloughMedian Travel Time6.27367
Winter Chinook2025-06-10Sutter SloughRouting Probability0.137340.111920.16412
Winter Chinook2025-06-10Sutter SloughSurvival4.8468e-41.4575e-74.0994e-4
Winter Chinook2025-06-10Steamboat SloughMedian Travel Time6.04657
Winter Chinook2025-06-10Steamboat SloughRouting Probability0.14180.118170.16583
Winter Chinook2025-06-10Steamboat SloughSurvival1.2573e-41.626e-89.0051e-5
Winter Chinook2025-06-10Interior DeltaMedian Travel Time9.81911
Winter Chinook2025-06-10Interior DeltaRouting Probability0.131470.103030.16295
Winter Chinook2025-06-10Interior DeltaSurvival1.1635e-44.7643e-93.8027e-5
Late-fall Chinook2025-06-10OverallMedian Travel Time11.9959.194616.039
Late-fall Chinook2025-06-10OverallSurvival0.397590.298460.49639
Late-fall Chinook2025-06-10Delta Cross ChannelMedian Travel TimeNANANA
Late-fall Chinook2025-06-10Delta Cross ChannelRouting Probability000
Late-fall Chinook2025-06-10Delta Cross ChannelSurvivalNANANA
Late-fall Chinook2025-06-10Georgiana SloughMedian Travel Time17.43311.8125.765
Late-fall Chinook2025-06-10Georgiana SloughRouting Probability0.2730.2190.3762
Late-fall Chinook2025-06-10Georgiana SloughSurvival0.181840.0787970.34968
Late-fall Chinook2025-06-10Sacramento RiverMedian Travel Time10.1387.307614.527
Late-fall Chinook2025-06-10Sacramento RiverRouting Probability0.4580.35890.518
Late-fall Chinook2025-06-10Sacramento RiverSurvival0.524450.37850.6425
Late-fall Chinook2025-06-10Sutter and Steamboat SloughMedian Travel Time10.7097.719415.38
Late-fall Chinook2025-06-10Sutter and Steamboat SloughRouting Probability0.2660.2370.293
Late-fall Chinook2025-06-10Sutter and Steamboat SloughSurvival0.408760.240140.57846

Loss&Salvage Predictor Estimates

Current estimates generated by the Loss and Salvage Predictor tool. Predicts loss and/or salvage of endangered steelhead and winter run Chinook salmon at the CVP and SWP pumping facilities at the southern end of the Sacramento-San Joaquin Delta. Available Decemer to mid-June.

plot Estimates of Winter-run Chinook Loss generated by Loss and Salvage Predictor tool
Estimates of Winter-run Chinook Loss generated by Loss and Salvage Predictor tool
plot Estimates of Steelhead Loss generated by Loss and Salvage Predictor tool
Estimates of Steelhead Loss generated by Loss and Salvage Predictor tool
Environmental Conditions, Loss and Salvage Predictor Input and Output
Parameter TokenParameter DescriptionWater YearWeekWeek TypeValue
temp.malWater Temperature °C, Mallard Island (MAL) from CDEC202536Data20
precipPrecipitation Inches, 5 day running sum, Stockton Fire Station (SFS) from CDEC202536Data0
om.sumOMR Flows CFS, sum of tidally-filtered discharge at Middle River and Bacon Island from USGS202536Data-6406
sacSacramento Flows CFS, Freeport (FPT) from CDEC202536Data13727
dccDCC Gate Status from BOR202536Dataclosed
sjrSan Joaquin River Flow CFS, Vernalis (VNS) from CDEC 202536Data2010
exportExports CFS, sum of Pumping Discharge at HRO and TRP from CDEC202536Data5568
steelhead.pwSteelhead Previous Week202536Data0
winter.pwWinter Chinook Previous Week202536Data0
temp.malWater Temperature °C, Mallard Island (MAL) from CDEC202537Forecast20
precipPrecipitation Inches, 5 day running sum, Stockton Fire Station (SFS) from CDEC202537Forecast0
om.sumOMR Flows CFS, sum of tidally-filtered discharge at Middle River and Bacon Island from USGS202537Forecast-6406
sacSacramento Flows CFS, Freeport (FPT) from CDEC202537Forecast13727
dccDCC Gate Status from BOR202537Forecastclosed
sjrSan Joaquin River Flow CFS, Vernalis (VNS) from CDEC 202537Forecast2010
exportExports CFS, sum of Pumping Discharge at HRO and TRP from CDEC202537Forecast5568
steelhead.pwSteelhead Previous Week202537Forecast0
winter.pwWinter Chinook Previous Week202537Forecast0
Fish, Loss and Salvage Predictor Input and Output
Parameter TokenParameter DescriptionWater YearWeekValue
Steelhead.LowPredicted Steelhead, Low %2025360
Steelhead.MedianPredicted Steelhead, Median %2025360
Steelhead.HighPredicted Steelhead, High %20253617
Winter.Run.LowPredicted Chinook Winter Run, Low %2025360
Winter.Run.MedianPredicted Chinook Winter Run, Median %2025360
Winter.Run.HighPredicted Chinook Winter Run, High %2025360
Steelhead.Observed.lossObserved Steelhead loss2025360
Winter.Run.Observed.lossObserved Chinook Winter Run loss2025360
Steelhead.Cumulative.lossObserved Steelhead Cumulative loss202536600
Winter.Run.Cumulative.lossObserved Chinook Winter Run Cumulative loss202536158
Steelhead.LowPredicted Steelhead, Low %2025370
Steelhead.MedianPredicted Steelhead, Median %2025370
Steelhead.HighPredicted Steelhead, High %20253717
Winter.Run.LowPredicted Chinook Winter Run, Low %2025370
Winter.Run.MedianPredicted Chinook Winter Run, Median %2025370
Winter.Run.HighPredicted Chinook Winter Run, High %2025370
Steelhead.Observed.lossObserved Steelhead loss202537NA
Winter.Run.Observed.lossObserved Chinook Winter Run loss202537NA
Steelhead.Cumulative.lossObserved Steelhead Cumulative loss202537600
Winter.Run.Cumulative.lossObserved Chinook Winter Run Cumulative loss202537158

Spring Surrogates

Spring-Run Chinook Salmon Hatchery Surrogate Summary Table, Water Year 2025
Type Hatchery Release Start Release End Race Total # of Fish Released # of CWT Fish Released Tag Codes Loss Threshold (0.25% of CWT Released) Confirmed Loss % Loss of CWT Number Released First Loss Last Loss Confirmed Loss CWT Tag Codes
Yearling Coleman NFH 2024-11-20 2024-11-20 Late-Fall 698,892 698,892050038, 050039, 050040, 050041, 050042, 050043, 050044, 052900, 053300, 053400, 053500 1747.23 1051.21 0.15% 2024-11-29 2025-04-05050038, 050039, 050040, 050041, 050042, 050043, 050044, 052900, 053300, 053400, 053500
Yearling Coleman NFH 2024-12-13 2024-12-13 Late-Fall 77,355 77,355053100 193.39 72.52 0.09% 2024-12-25 2025-01-12053100
Yearling Coleman NFH 2025-01-17 2025-01-17 Late-Fall 74,425 74,425053000 186.06 43.34 0.06% 2025-01-30 2025-04-04053000
Young-of-year Feather River Hatchery 2025-03-14 2025-03-14 Spring 961,411 476,741063233 1191.85 16.56 0.00% 2025-04-06 2025-04-06063233
Young-of-year Feather River Hatchery 2025-03-21 2025-03-21 Spring 962,741 475,831063230 1189.58 110.13 0.02% 2025-03-31 2025-05-02063230
Young-of-year Feather River Hatchery 2025-04-09 2025-04-09 Spring 1,012,800 504,304061537, 062012, 062884 1260.76 0.00 0.00%
Young-of-year Feather River Hatchery 2025-04-23 2025-04-24 Fall 1,505,055 376,122063265, 063195 940.31 0.00 0.00%
Young-of-year Coleman NFH 2025-04-15 2025-04-15 Fall 2,122,103 695,170056600, 056700, 056747, 056748, 056768, 056800 1737.93 0.00 0.00%
Young-of-year Coleman NFH 2025-04-28 2025-04-30 Fall 1,472,338 368,085056750, 056751, 056749, 056752 920.21 0.00 0.00%
Surrogate releases identified by SaMT and based on PA 3.7.4.5.7.

Single-Year Loss Thresholds

Single-Year Loss Thresholds

  • Natural Winter-Run Chinook Salmon (loss= 0.5% of JPE)
  • Natural Central Valley Steelhead (loss = 3000)

Loss Summary Table

Unclipped Chinook and Steelhead Loss Summary, Monitoring Period 2024-07-01 to 2025-06-30, max data date possible 2025-06-09
Data ItemDNA Winter-run ChinookLAD Winter-run ChinookNatural Steelhead
Loss Total Last 1-7 days (06/04/2025-06/10/2025)000
Loss Total Last 8-14 days (05/28/2025-06/03/2025)000
Cumulative Loss Total (07/01/2024-06/30/2025)28.83158.36599.54
Cumulative Loss Percent of Threshold (07/01/2024-06/30/2025)5.83%NA19.98%
Single-Year Loss Threshold494.47NA3000

Natural DNA Winter-Run Chinook Salmon Loss Figures

graph loss Natural DNA Winter-Run Chinook Salmon
Natural DNA Winter-Run Chinook Salmon Loss Cumulative to Date with Single Year Loss Thresholds

Natural LAD Winter-Run Chinook Salmon Loss Figures

graph loss Natural Winter-Run Chinook Salmon
Natural LAD Winter-Run Chinook Salmon Loss Cumulative to Date with Single Year Loss Thresholds
graph loss Natural Winter-Run Chinook Salmon with WY2009-2018 history
Natural LAD Winter-Run Chinook Salmon Loss Cumulative to Date with WY2009-2018 history and Single Year Loss Thresholds
graph loss Natural Winter-Run Chinook Salmon with WY2009-2018 history
Natural LAD Winter-Run Chinook Salmon Loss Cumulative to Date with historical years and Single Year Loss Thresholds

Natural Central Valley Steelhead Loss Figures

graph loss Natural Central Valley Steelhead
Natural Central Valley Steelhead Loss Cumulative to Date with Single Year Loss Thresholds
graph Natural Central Valley Steelhead with WY2009-2018 history
Natural Central Valley Steelhead Loss Cumulative to Date with Historical Loss and Single Year Loss Thresholds
graph loss Natural Central Valley Steelhead with WY2009-2018 history
Natural Central Valley Steelhead Loss Cumulative to Date with Historical Loss and Single Year Loss Thresholds

Daily Loss Table

Unclipped Chinook and Steelhead Loss Daily, Monitoring Period 2024-07-01 to 2025-06-30
DateDNA Winter-run Chinook : Daily LossDNA Winter-run Chinook : Cum LossLAD Winter-run Chinook : Daily LossLAD Winter-run Chinook : Cum LossNatural Steelhead : Daily LossNatural Steelhead : Cum Loss
DateDNA Winter-run Chinook : Daily LossDNA Winter-run Chinook : Cum LossLAD Winter-run Chinook : Daily LossLAD Winter-run Chinook : Cum LossNatural Steelhead : Daily LossNatural Steelhead : Cum Loss
2025-06-09028.830158.360599.54
2025-06-08028.830158.360599.54
2025-06-07028.830158.360599.54
2025-06-06028.830158.360599.54
2025-06-05028.830158.360599.54
2025-06-04028.830158.360599.54
2025-06-03028.830158.360599.54
2025-06-02028.830158.360599.54
2025-06-01028.830158.360599.54
2025-05-31028.830158.360599.54
2025-05-30028.830158.360599.54
2025-05-29028.830158.360599.54
2025-05-28028.830158.360599.54
2025-05-27028.830158.360599.54
2025-05-26028.830158.362.72599.54
2025-05-25028.830158.362.72596.82
2025-05-24028.830158.362.72594.1
2025-05-23028.830158.360591.38
2025-05-22028.830158.362.04591.38
2025-05-21028.830158.360589.34
2025-05-20028.830158.360589.34
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Data Notes

Content on this page is updated daily during the monitoring season and includes the most up-to-date datasets contained in the SacPAS database. Juvenile monitoring and salvage data are updated as made available publicly.

  1. Long-Term Operation of the Central Valley Project and State Water Project, Bay-Delta Office, USBR
  2. Long-Term Operation – Biological Assessment: Chapter 3 – Proposed Action, USBR
    • 3.7.4.5.3 Winter-Run Chinook Salmon Annual Loss Threshold, pg 3-62
    • 3.7.4.5.5 Steelhead Annual Threshold, pg 3-65
  3. Water condtions data courtesy of CDEC.
  4. Knights Landing RST and Tisdale RST data courtesy of CDFW via StreamNet.
    • The Knights Landing RST: uses Frank Fisher length-at-date model to categorize Chinook into "older" and "fry/smolt".
  5. Sacramento Trawls, Sacramento Beach Seines, Chipps Island Trawls, and Mossdale Trawls sampling data courtesy of USFWS Lodi weekly.
    • Sacramento Beach Seines: Verona, Elkhorn, Sand Cove, Miller Park, Sherwood Harbor, Discovery Park, American River, Garcia Bend.
    • 30 November 2020: Sampling at Mossdale Trawls stopped; sampling at the sites deemed "non-essential" during COVID-19 response.
  6. Salvage data courtesy of Fish Salvage Monitoring, CDFW Bay Delta Region
    • Salvage Database, ftp://ftp.dfg.ca.gov/salvage/
    • We use loss estimation methods as detailed in "Chinook Salmon Loss Estimation for Skinner Delta Fish Protective Facility and Tracy Fish Collection Facility, 7/9/2018" ftp://ftp.wildlife.ca.gov/salvage/Salmon%20loss%20estimation.docx
SacPAS Related Queries and Tools: