WY2021 Conditions for the Salmon Monitoring Team -- ARCHIVE

	4.10.5.10.4 End of OMR Management:
	OMR criteria may control operations until June 30 (for Delta Smelt and Chinook salmon), until June
	15 (for steelhead/rainbow trout), or when the following species-specific off ramps have occurred,
	whichever is earlier:
	o Delta Smelt: when the daily mean water temperature at CCF reaches 77°F for 3 consecutive days;
	o Salmonids:
		o when more than 95 percent of salmonids have migrated past Chipps Island, as determined by
			their monitoring working group, or
		o after daily average water temperatures at Mossdale exceed 71.6°F for 7 days during June (the
			7 days do not have to be consecutive).

	8.8 End of OMR Management. 
	Permittee shall operate the Project to meet the requirements included in Conditions of Approval
	8.3.1, 8.3.3, 8.4.1, 8.4.2, 8.5.1, 8.5.2, 8.6.1, 8.6.2, 8.6.3, and 8.6.4 to ensure that entrainment 
	and take of Covered Species is minimized during the OMR Management season through June 30, or until 
	the following species-specific off-ramps occur:
	o LFS and OS: 
		o Daily mean water temperature at CCF is greater than 25°C for three consecutive days.
	o CHNWR and CHNSR:
		o More than 95% of CHNWR and CHNSR have migrated past Chipps Island as determined by the Salmon Monitoring Team, AND
		o Daily average water temperature at Mossdale exceeds 22.2°C for 7 nonconsecutive days in June, AND
		o Daily average water temperature at Prisoner's Point exceeds 22.2°C for 7 nonconsecutive days in June. 

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

• CDEC 6:00am
• Knights Landing RST 8:10am, 4:10pm
• Sacramento Trawls and Beach Seines weekly, typically Monday
• Salvage 6:10am, 1:10pm

• Juvenile Monitoring & Sampling data queries
• Juvenile Salvage & Loss data queries
• Loss and Salvage Predictor real-time forecasts from approximately December to mid-June

Species Distribution Estimates

Estimates presented during weekly meetings. Submitted by BOR to SacPAS after weekly meetings for automated generation of plots.

Juvenile Sampling

Juvenile Sampling Summary for 06/11/2021-06/17/2021 (last 7 days) and 06/04/2021-06/10/2021 (previous 7 days)

• Tisdale Weir RST: Preliminary data from CDFW via StreamNet and CDEC; subject to revision.
• Knights Landing RST: Preliminary data from CDFW via StreamNet and CDEC; subject to revision. Turbidity is a discrete measure. KNL measured in FTU which should be roughly equivalent to NTU.
• 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.

Updated: Friday, 18-Jun-2021 13:15:15 PDT

Historical Migration Pattern for "Today"

Updated: Friday, 27-Sep-2024 08:28:58 PDT

Single-Year Loss Thresholds

Single-Year Loss Thresholds (PA 4-69)

In each year, typically January/February, Reclamation and DWR propose to avoid exceeding an annual loss threshold equal to 90% of the greatest annual loss that occurred in the historical record from 2010 through 2018 for each of:

• Natural Winter-Run Chinook Salmon (loss= 1.17% of JPE)
• Hatchery Winter-Run Chinook Salmon (loss= 0.12% of JPE)
• Natural Central Valley Steelhead from December through March (loss =1,414)
• Natural Central Valley Steelhead from April through June 15 (loss = 1,552)

Summary Loss Table

Natural Winter-Run Chinook Salmon Loss

Natural Central Valley Steelhead

Daily Loss Table

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

Updated: Friday, 18-Jun-2021 08:30:06 PDT

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

DCC Operations

Originally 1 October - 30 November. Reporting period extended due to dry conditions.

Updated: Monday, 10-Oct-2022 13:36:09 PDT

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)

Data Set Notes:

1. 2019 Biological Opinions, USBR includes link to "Chapter 4 Proposed Action" PDF
2. Water condtions data courtesy of CDEC.
3. 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".
4. 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.
5. 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