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November 15, 2004November 15, 2004

SWRCB Workshop on DCC & SalmonJoint SWP & CVP Presentation

Delta X-Channel Operations – Dec 99 Water Quality vs. Fish Conflict

Delta X-Channel Operations – Dec 99 Water Quality vs. Fish Conflict

09-Nov 15-Nov 21-Nov 27-Nov 3-Dec 9-Dec 15-Dec 21-Dec 27-Dec 2-Jan

2,000

4,000

6,000

8,000

10,000

12,000

14,000

16,000

18,000

20,000

Pum

ping

(cfs

)

0.0

0.4

0.8

1.2

1.6

2.0Gates CLOSEDGates CLOSED Gates OPENGates OPENGates OPENGates OPEN

Banks PPBanks PP

Tracy PPTracy PP

Holland TractHolland TractHolland Tract

Bethel TractBethel TractBethel Tract

Jersey PointJersey PointJersey Point

Elec

tric

al C

ondu

ctiv

ity (m

S/cm

)

WQ Crisis with Little Benefit to FishDecember 1999

WQ Crisis with Little Benefit to FishWQ Crisis with Little Benefit to FishDecember 1999December 1999

11--DecDec 55--DecDec 99--DecDec 1313--DecDec 1717--DecDec 2121--DecDec 2525--DecDec 2929--DecDec00

22

44

66

88

1010

1212

1414

1616

Targ

et F

ish

Col

lect

ed, F

ish/

Day

Targ

et F

ish

Col

lect

ed, F

ish/

Day

00

0.20.2

0.40.4

0.60.6

0.80.8

11

1.21.2

Water Quality Water Quality Trigger (0.8 EC)Trigger (0.8 EC)

Gates CLOSEDGates CLOSED Gates OPENGates OPEN

Fish/Day Collected

1

32

Water QualityWater Quality

WQ trigger exceeded for 23-daysSWP lost 180,000 AFCVP lost 100,000 AF

WQ trigger exceeded WQ trigger exceeded for 23for 23--daysdaysSWP lost 180,000 AFSWP lost 180,000 AFCVP lost 100,000 AFCVP lost 100,000 AF

Wat

er Q

ualit

y, E

CW

ater

Qua

lity,

EC

Impacts of Delta Cross Channel Operating Decisions in December 1999

Impacts of Delta Cross Channel Operating Decisions in December 1999

184

382

45

805

TDS, ppm Bromides, ppb

South DeltaNational Avg

Peak Water Quality Impacts

WQ was the worst since 1977, a record drought year.

In River Total EscapementIn River Total Escapement

IN RIVER TOTAL ALL RACES OF CHINOOK SALMON

0

100,000

200,000

300,000

400,000

500,000

600,000

700,000

800,000

900,000

1952

1953

1954

1955

1956

1957

1958

1959

1960

1961

1962

1963

1964

1965

1966

1967

1968

1969

1970

1971

1972

1973

1974

1975

1976

1977

1978

1979

1980

1981

1982

1983

1984

1985

1986

1987

1988

1989

1990

1991

1992

1993

1994

1995

1996

1997

1998

1999

2000

2001

2002

2003

Years

Salm

on E

scap

emen

t

1967-1991 Average

Doubling Goal

Source: CDFG 2004 unpublished dat a.

Actions and Investigations to Benefit Central Valley Salmonids

Actions and Investigations to Benefit Central Valley Salmonids

Passage barrier removal/fish laddersPositive barrier fish screensHabitat enhancement

• Spawning gravel• Riparian vegetation• Instream cover• Instream flows• Water temperature• Sediment loading• Watershed management

Modifications to hatchery operationsHarvest regulations/enforcementScientific investigations

• Delta cross-channel• VAMP• CHTR• Real-time monitoring (DAT)• Georgiana Slough acoustic barrier• Many others

Ecosystem Restoration ProgramA Groundbreaking Approach To Ecosystem EnhancementEcosystem Restoration ProgramEcosystem Restoration Program

A Groundbreaking Approach To Ecosystem EnhancementA Groundbreaking Approach To Ecosystem Enhancement

Past Actions– $282M pre-ROD– $650M post-ROD– 400+ eco projects

Future Actions– $1.5B over 10-yrs– 609 eco projects

Benefit-Cost Modeling Benefitof CALFED Fish ActionsBenefit--Cost Modeling Cost Modeling

of CALFED Fish Actionsof CALFED Fish ActionsEstimate Fish BenefitsEstimate Fish BenefitsEstimate Fish Benefits

0

10,000

20,000

30,000

40,000

1 6 11 16 21Simulation Year

Fish

(#)

Develop Cash FlowDevelop Cash FlowDevelop Cash Flow

$$

BenefitBenefit--Cost ModelCost Model

Fish Benefit Index

reens – Modules Alt

Bypass Alt

Upstream Fish Screens

Fish Tagging

Upstream Restoration

Preliminary

Preliminary

Cold Water Control Device

SWP Screens –

SWP Sc

SummarySummary

Interdisciplinary integrated programs – fisheries, water quality, hydrology, engineering, operationsMany enhancement projects over a wide geographic area – upstream and within deltaMonitoring to inform management decisionsLong-term perspective (e.g., VAMP 12 years)Watershed approach to address life cycle and limiting factorsEvidence of promising trends but preliminary