CALSIM II - San Joaquin River BasinRefinements and Results

Presentation by Dan SteinerOn behalf of the San Joaquin River Group AuthorityMarch 14, 2005

Calaveras

Newman

Geographic Scope

New Melones

New Don Pedro

New Exchequer

Buchanan

Hidden

Millerton

New Hogan

River

StanislausRiver

TuolumneRiver

Merced

River

Stevinson

Lander

MazeVernalis

Ripon

Modesto

ChowchillaRiver

Fresno River

SanJoaquin

River

San

Joaquin

River

Mendota Pool

Delta-Mendota Canal

California Aqueduct

Delta-Mendota Canal

California Aqueduct

San Luis Reservoir

CALSIM II San Joaquin River Basin Enhancements

• Revised hydrology• Land use based demands for Eastside water districts and

adjacent areas• Improved system operating rules• Revised mapping of Westside and Eastside connectivity• Refinement / Addition of Friant and Calaveras systems• New formulation for calculation of water quality at Vernalis

Revised Hydrology

• Stream AccretionsMass balance approach using long-term gages

Accounts for water entering and leaving stream reaches

+ Downstream Gage

- Upstream Gage

+ Diversions

- Return Flows

+ Runoff Adjustment

• Resultant Value Represents

Precipitation runoff

Historical stream-groundwater interaction

Gage errors

Representation of Land-use Based DemandsWater Use Areas

Representation of Land Use Based DemandsLand Use

Conceptual Area Water BalanceBased on Land Use Demands

CUAW from CU modelNon-recoverable losses

Deep percolation

GW pumping

SW

Boundary

Returns to system

Water Budgets andRepresentation of System Operations

• Use historical land use to estimate consumptive use

• Use historical operations data to perform water budgets

• Results of water budgets are used to developStream diversion requirementsGroundwater use parametersDistrict Operations

• Approach varies depending on available data

• Validation of system operationsEnsure model simulation depicts recent operations

Representation of System Operations

New Don Pedro Reservoir

Modesto Irrigation District Diversion ParametersLa Grange Reservoir

Modesto Reservoir Diversion Target

Reservoir Release TargetIntercepted Flow

District Pumping Municipal Delivery

Net Evap/Local InflowSeepage to Groundwater

Other PDAW / CUAW Canal Turnout TargetDelivery above PDAW

Canal Losses

Deep PercolationDistrict Operational Spills

Non-District GW Pumping

Spills above Ripon Spills above Modesto

Spills blw Ripon Spills to Mainstem (Maze)

Illustrative Example

Validation of System Operations

0

100

200

300

400

500

600

700

800

900

Oct

1977 Oct

1978 Oct

1979 Oct

1980 Oct

1981 Oct

1982 Oct

1983 Oct

1984 Oct

1985 Oct

1986 Oct

1987 Oct

1988 Oct

1989 Oct

1990 Oct

1991 Oct

1992 Oct

1993 Oct

1994 Oct

1995 Oct

1996 Oct

1997 Oct

1998

Flo

w (

1000

AF

)

0

500

1000

1500

2000

Sto

rag

e (1

000

AF

)

flow belw La Grange C540 Simulation S81 Simulation Don Pedro Storage

New Don Pedro Operations

Comprehensive San Joaquin River Basin Model

I92 I10 I20

I81 I53 I52 I18

New Melones Lake

New Hogan Reservoir Reservoir New Don Pedro McClure Eastman Hensley Millerton Lake

Stanislaus Reservoir Merced Lake Lake

Calaveras River River C10 Tuolumne River Chowchilla Fresno C18 Friant-Kern Canal

C92 D509 River C81 River C53 River C52 L590 D18B

D506C L509 I76 C20 D18A

I506 Tulloch C590

Madera Canal

D506B D520A1 C76

D540A D540B I561

D506A Bellota GP509 I520 San Joaquin

GP505 L506 C509 D520A D572 C580 D590 River

C506 Woodward Goodwin C540 D79_SEEP Crocker C561 D561 L582 L588 L603

D520B D78_SEEP Huffman C570

C505 D507 I507 C75 D520C D78_MI GP570 D582 GP583 D588 GP591

D75_SEEP D78 D78A D562 Gravelly Ford

GP530 D79 D562A C591

L507 C530 D530_VAMP R550A R564A D570 C583 D584

D521 GP532 C562

D511 D510 C520 R532 D571 C588 C603

C507 GP522 C532 I564 R564B C582 D592 D603

R508 GP548 R573

C522 D531 R545B R550B D586 L605

R528A R534B D533 R595

I545 C548 Cressey C564 R587A R585

R644E R526 D523 GP534 R534A R545C D595 C605B Chowchilla

R528B R528C R545A I566 D566 C585 Chowchilla Bypass Bifurcation

R636C D620C C573

I528 Modesto D545 D549 R566 GP573 GP585 C595 C605A

Ripon D528 D528A R637A C534 D545A

C508 GP550 R587B

C528 C545 R630J C550 C566 D574

R637C D535 R630L D607D

D639 R636B D630A D620A R620

I637 R637B R636A D551 C587 I614 I611 (Adjusted)

Vernalis R630K Newman Mud/Salt Slough Lander Ave. Mendota Pool

C644 C639 C637 C636 C630 C620 C614 C611 C607 James Bypass

I607

San Joaquin River Maze D630B D607A

D637 I636 D620B C607BVAMP

D620Accr R614SLDR

R639 R637D R630M

C619 C607BC C708

R644West Drainage (Grasslands Bypass Project) D607B

R630West R614TA R614West

R636D R614TB D607C R607West

Upstream DMC R619West R614TC

Westlands WD (incl. Barcellos) R607A

R644A Plainview WD Davis WD ------------------------R619A

R644B Tracy, City of R630A ---- Del Puerto WD Pool AG & WR

R644C Banta Carbona ID R630B ---- Hospital WD R619G ---- ---- Exchange Contractors ---------- R614I

R644D West Side ID R630C ---- Kern Canon WD Fresno Slough WD R607B

R630D ---- Salado WD Lower DMC Exch James ID R607C

R630E ---- Sunflower WD Traction Ranch/F&G R607D

R630F ---- West Stanislaus WD Panoche WD * R614A Tranquillity ID R607E

Mustang WD -----------------R619B San Luis WD * R614B Hughes, Melvin R607F

CALSIM SAN JOAQUIN RIVER SCHEMATIC LEGEND R630G ---- Orestimba WD Broadview WD * R614C R.D. 1606 R607G

San Luis Canal R630H ---- Patterson WD WR Laguna WD R614D Sch. II W.R.. - R607H

Reservoir Node C# Channel Reach San Luis Interim R630I ---- Patterson WD Eagle Field WD R614E Sch. II W.R.. - James IDWestlands WD Foothill WD ---------------------R619C Mercy Springs WD R614F Sch. II W.R.. - Traction RanchSan Luis WD * Quinto WD ---------------------R619D Oro Loma WD R614G Sch. II W.R.. - Tranquility I

Groundwater basin Deep percolation and Panoche WD * Romero WD ---------------------------R619E Widren WD * R614H Sch. II W.R.. - Hughes, MelvinStream-Aquifer seepage Pacheco WD * Centinella WD ----------------------R619F Sch. II W.R.. - R.D. 1606

Grasslands WD Lower DMC Ag Sch. II W.R.. - DudleyFlow Node D# Diversion CA, State Parks and Rec Upstream DMC

Affonso/Los Banos Gravel Co. Grasslands via CCID R614K Pool AG & WR

District Node R# Return Flow Avenal, City of Los Banos WMACoalinga, City of Kesterson NWR R619H R614J Exchange Contractors

Non-District Node I# Inflow Huron, City of Freitas - SJBAPSalt Slough - SJBAP Pool Exchange

GP# Groundwater Pumping China Island - SJBAPVolta WMA R614L Grasslands WDGrassland via Volta Los Banos WMA

Assumes no tailwater to San Luis NWRSan Joaquin River. Lower DMC Ref Mendota WMA R607I

West Gallo - SJBAPEast Gallo - SJBAP

Pool Refuge

53 52 18

605

607

603

590

587

580

582 583 588

620

591

630637639

561

20

573

8110

76

540

7978

548

530

522

564

570

#

#

#

#

528

534

614

g49D

592

595

607A

g49D

584

585586

g49D

638 631 621

607_1607C

g49D

571

562

566g49D

574

g49Ag49Ag49A g49A

549

550

551

g49C

g60C

g60B

533

535

532

g49B

531

545

g49B

52075

523

g49B

g49D

g49B

g49D

g49C

#

562A

572

545A

528A

619

607B

636

78A521

700

644

701

707

706

708

607

607

607

607

607A

607A

607B

607C

833 835 837 839

841 843

844

871 872

715

714

713

g49B

611412

92

506

505g49B

511507

509

510

508

g49B

CalaverasRiver

StanislausRiver

TuolumneRiver

MercedRiver

ChowchillaRiver

FresnoRiver

San JoaquinRiver

Vernalis

Maze Newman

Lander

Mendota PoolSan Joaquin River

Comprehensive San Joaquin River Basin ModelSimple Version Including Water Quality

Vernalis Stanislaus Maze Tuolumne Newman/Merced

Mud/SaltSloughs

Stanislaus River Tuolumne River Merced River

San Joaquin River

WQ Equation WQ Equation

Blended

West-side Returns SW-source Component GW-source Component

West-side Returns SW-source Component GW-source Component

West-side Returns SW-source Component GW-source Component

West-side Returns SW-source Component GW-source Component

Creek InflowCreek Inflow

Orestimba/Del Puerto Crk

Accretions Tile Drain Groundwater

Accretions Tile Drain Groundwater

River UserReturns

River UserReturns

River UserReturns

Diversions Diversions Diversions DiversionsAdjusted Accretion

Returns Returns Returns Returns

Grasslands Bypass Project

Creek Inflow

Lander WQ Equation

Load ClosureTermLoad Closure

Term

Load ClosureTerm

Load ClosureTerm

CALSIM II Current Conditions Test Simulation

• CALSIM II fully integrated model logic, last modifications through January 2005.

• Logic and results are currently under review with Reclamation

• Represents current basin operationsDecision 1641Decision 1422New Melones Interim Operations PlanSan Joaquin River Agreement

CALSIM II Current Conditions Test Simulation

• First, results are presented for “Maze”, the San Joaquin River upstream of the Stanislaus confluence

Captures the effects of upstream operations of the Merced River and Tuolumne River, and the occasional flow from the upper San Joaquin River and Kings River

Water quality estimated with new CALSIM II mass balance approach

• Results are then presented for “Vernalis”, as the conditions are affected by the Stanislaus River and the operation of New Melones

Captures the effects of New Melones operating to the Interim Plan of Operation, sometimes specifically for Vernalis flow and quality objectives

Simulation of San Joaquin River at Maze

Range and Average Simulated Water Quality at SJR MazeRevised CALSIM II Model - January 2005

0

500

1,000

1,500

2,000

2,500

Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep

Average Monthly EC - uS/cm

High

Low

Average

Vernalis Quality Objective

Average Water Quality of San Joaquin River at Maze by Year Type - Simulated

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800

1,000

1,200

1,400

1,600

Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep

uS/cm

W

AN

BN

D

C

Vernalis Quality Objective

Simulation of San Joaquin River at MazeComparison to Previous Modeling

Range and Average Simulated Water Quality at SJR MazeRevised CALSIM II Model - January 2005

0

500

1,000

1,500

2,000

2,500

Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep

Average Monthly EC - uS/cm

Range and Average Simulated Water Quality at SJR MazeCALSIM II Model - Prior to January 2005

0

500

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1500

2000

2500

Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep

Average Monthly EC - uS/cm

High

Low

Average

Vernalis Quality Objective

Vernalis Quality Objective

Simulation of San Joaquin River at MazeComparison to Previous Modeling

Maze Actual and Simulated Flow

Simulated and Recorded Water Quality at Maze

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500

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2500

Jan

-86

Ma

r-8

6

Ma

y-8

6

Jul-

86

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p-8

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v-8

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Jan

-87

Ma

r-8

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Ma

y-8

7

Jul-

87

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p-8

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No

v-8

7

Jan

-88

Ma

r-8

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Ma

y-8

8

Jul-

88

Se

p-8

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No

v-8

8

Jan

-89

Ma

r-8

9

Ma

y-8

9

Jul-

89

Se

p-8

9

No

v-8

9

Jan

-90

Ma

r-9

0

Ma

y-9

0

Jul-

90

Se

p-9

0

No

v-9

0

Jan

-91

Ma

r-9

1

Ma

y-9

1

Jul-

91

Se

p-9

1

No

v-9

1

Jan

-92

Ma

r-9

2

Ma

y-9

2

Jul-

92

Se

p-9

2

No

v-9

2

CALSIM II (Jan 2005) CALSIM II (prior to January 2005) SANJASM Original Kratzer Recorded

Average Monthly EC - uS/cm

Simulated and Recorded Flow at Maze

0

500

1000

1500

2000

2500

Jan

-86

Ma

r-8

6

Ma

y-8

6

Jul-

86

Se

p-8

6

No

v-8

6

Jan

-87

Ma

r-8

7

Ma

y-8

7

Jul-

87

Se

p-8

7

No

v-8

7

Jan

-88

Ma

r-8

8

Ma

y-8

8

Jul-

88

Se

p-8

8

No

v-8

8

Jan

-89

Ma

r-8

9

Ma

y-8

9

Jul-

89

Se

p-8

9

No

v-8

9

Jan

-90

Ma

r-9

0

Ma

y-9

0

Jul-

90

Se

p-9

0

No

v-9

0

Jan

-91

Ma

r-9

1

Ma

y-9

1

Jul-

91

Se

p-9

1

No

v-9

1

Jan

-92

Ma

r-9

2

Ma

y-9

2

Jul-

92

Se

p-9

2

No

v-9

2

CALSIM II (January 2005) CALSIM II (prior to January 2005) SANJASM Recorded

Average Monthly Flow - CFS

Simulation of San Joaquin River at VernalisStanislaus River Interim Plan of Operations

New Melones Storage

Plus Inflow Fishery

Vernalis Water

Quality Bay-Delta CVP

Contractors*

From To From To From To From To From To

0 1,400 0 98 0 70 0 0 0 0

1,400 2,000 98 125 70 80 0 0 0 0

2,000 2,500 125 345 80 175 0 0 0 59

2,500 3,000 345 467 175 250 75 75 90 90

3,000 6,000 467 467 250 250 75 75 90 90

* CVP Contractors: Stockton East Water District and Central San Joaquin Water Conservation District

1. Releases for the fishery according to an assumed pattern associated with the allocated volume.

2. Releases up to the amount needed above the fishery release to meet the Vernalis water quality requirement, these accumulated releases cannot exceed the annual Vernalis water quality allocation.

3. Releases for DO at Ripon (surrogated as a flow requirement at Goodwin), with no volume limitation except the flow requirement itself.

4. Releases for the Vernalis D-1641 Bay-Delta flow requirement. The IPO assumed that the Vernalis flow requirement release occurred as the second step; however, for modeling simplicity the release is modeled last. Results are rarely affected by the shift in order.

Simulation of San Joaquin River at VernalisVernalis Objectives

The current water quality objective at Vernalis is a running 30-dayaverage of 700 uS/cm for April 1 through August 31, and 1000 uS/cmfor September 1 through March 31.

For the February through June non-pulse period (cfs):

October objectives

San Joaquin Basin Index X2 Required At or West of

Chipps X2 Required East of Chipps Wet 3420 2130 Above Normal 3420 2130 Below Normal 2280 1420 Dry 2280 1420 Critical 1140 710

Simulation of San Joaquin River at VernalisNew Melones Operations and Vernalis

Goodwin Stream Release: 1986 -1992

0

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40

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120

Jan

-86

Ma

r-8

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Ma

y-8

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Jul-

86

Se

p-8

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No

v-8

6

Jan

-87

Ma

r-8

7

Ma

y-8

7

Jul-

87

Se

p-8

7

No

v-8

7

Jan

-88

Ma

r-8

8

Ma

y-8

8

Jul-

88

Se

p-8

8

No

v-8

8

Jan

-89

Ma

r-8

9

Ma

y-8

9

Jul-

89

Se

p-8

9

No

v-8

9

Jan

-90

Ma

r-9

0

Ma

y-9

0

Jul-

90

Se

p-9

0

No

v-9

0

Jan

-91

Ma

r-9

1

Ma

y-9

1

Jul-

91

Se

p-9

1

No

v-9

1

Jan

-92

Ma

r-9

2

Ma

y-9

2

Jul-

92

Se

p-9

2

No

v-9

2

1,000 AF

Fish WQ DO Instream VAMP Bay-Delta Spill

Vernalis and Maze Quality / New Melones Water Quality Release

0

200

400

600

800

1000

1200

1400

1600

1800

2000

Jan

-86

Ma

r-8

6

Ma

y-8

6

Jul-

86

Se

p-8

6

No

v-8

6

Jan

-87

Ma

r-8

7

Ma

y-8

7

Jul-

87

Se

p-8

7

No

v-8

7

Jan

-88

Ma

r-8

8

Ma

y-8

8

Jul-

88

Se

p-8

8

No

v-8

8

Jan

-89

Ma

r-8

9

Ma

y-8

9

Jul-

89

Se

p-8

9

No

v-8

9

Jan

-90

Ma

r-9

0

Ma

y-9

0

Jul-

90

Se

p-9

0

No

v-9

0

Jan

-91

Ma

r-9

1

Ma

y-9

1

Jul-

91

Se

p-9

1

No

v-9

1

Jan

-92

Ma

r-9

2

Ma

y-9

2

Jul-

92

Se

p-9

2

No

v-9

2

0

4

8

12

16

20

24

28

32

36

40

NM WQ Release Vernalis Quality Maze Quality Vernalis Objective

Water Quality - uS/cm New Melones WQ Release - 1,000 AF

Simulation of San Joaquin River at VernalisVernalis Water Quality Compliance

Average Monthly Water Quality at Vernalis - Simulated (uS/cm)WY Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep

1935 C C C C 1080 C C C C C C C1961 C C C C 1058 C C C C C 717 C1977 C C C C C C C C C C 710 C1988 C C C C C C C C C C 708 C1989 C C C C 1207 C C C C C C C1990 C C C C 1139 C C C C C C C1991 C C C C 1253 C C C C C C C1992 C C C C C C 749 1011 723 C 737 C1994 C C C C C C C C 735 718 725 C

Notes: "C" means water quality was within compliance for month. Exceedence during April or May is during non-pulse flow period.

Water Quality Objective - uS/cmOct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep

1000 1000 1000 1000 1000 1000 700 700 700 700 700 1000

Estimated Additional New Melones Release Needed to Provided Water Quality Compliance - 1,000 acre-feetWY Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep

1935 101961 7 21977 11988 11989 201990 151991 221992 6 21 1 31994 4 1 2

End of Month New Melones Storage - 1,000 acre-feetWY Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep

1935 584 580 583 616 640 690 820 1012 1127 1074 1001 9581961 1201 1216 1231 1239 1243 1224 1186 1132 1079 1023 966 9341977 1448 1444 1436 1428 1400 1339 1273 1209 1181 1124 1069 10471988 1443 1424 1410 1414 1404 1361 1298 1222 1182 1145 1109 10811989 1045 1029 1022 1020 1029 1079 1047 1002 984 932 882 8861990 906 908 923 936 952 920 856 786 733 676 633 6091991 598 580 589 587 584 626 594 558 521 461 404 3851992 382 371 386 400 450 467 441 361 308 252 194 1661994 716 738 772 802 825 775 723 675 619 552 490 455

Simulation of San Joaquin River at VernalisVernalis Flow Compliance

Water Vernalis Flow Objective - cfs Above/Below Flow Objective - cfs NMYear Feb Mar Apr May Jun Feb Mar Apr May Jun Index - TAF1922 3420 3420 3334 3420 3420 2448 6409 3649 1508 7258 22691923 3420 3254 2689 3378 2818 2474 -1033 3316 364 569 24941924 784 1043 710 710 710 1415 657 676 840 507 18361925 2034 2280 2165 2280 1907 189 27 510 1264 594 22331926 1666 2280 1993 2280 1420 550 -295 122 -306 1007 19651927 3420 3420 3420 3420 3205 -1053 412 1280 -202 -1126 24031928 2250 2280 2280 2280 1535 855 4681 1850 354 637 23881929 802 1001 810 710 724 1583 918 930 663 787 18881930 1140 1140 1126 932 710 945 723 270 615 445 17471931 848 738 782 710 710 1286 947 511 758 488 13731932 3376 3420 3377 2921 3162 -915 -978 -1534 -376 -1299 18071933 1635 1448 2079 1448 1449 530 511 -588 193 -142 15561934 1140 1140 1040 710 710 966 661 158 717 505 12441935 3420 3420 3248 3420 3334 -1457 -943 -188 -493 -1196 15801936 3376 3420 3377 3420 2861 3135 5368 2844 780 -181 21541937 2360 3420 3420 3420 3377 8889 6811 6761 4408 -698 23741938 3420 3420 3420 3420 3420 21045 28440 13777 18446 17899 34761939 1696 1503 2079 1420 1420 1485 1976 -346 726 82 23311940 3376 3420 3420 3420 2947 -694 4531 4841 197 710 26981941 3420 3420 3420 3420 3420 12406 11281 8212 5374 3610 28791942 3420 3420 3291 3420 3334 8196 3662 4639 3622 4254 31001943 3420 3420 3420 3420 2732 8380 17982 6598 1534 2984 30901944 1687 2280 2108 1448 1707 1389 1202 913 1063 777 23681945 3420 3420 3248 3045 2947 4408 3554 1620 2632 0 26491946 3420 3420 3291 3378 2861 3133 1725 590 992 162 27281947 1604 2280 2251 1503 1420 1289 -331 -657 97 29 22061948 2250 1475 1850 2280 2194 -267 269 -35 -280 -135 21211949 1574 1642 2280 2225 1735 570 560 -578 -403 -3 19371950 2280 2280 2251 2280 1936 -187 -211 -342 -730 324 21121951 3420 3420 3377 3045 2388 6722 2490 374 -142 0 26951952 3376 3420 3420 3420 3420 3101 8427 7785 11215 13961 33991953 2280 2280 2165 2225 1735 2747 132 1072 1171 679 26951954 2280 2280 2280 2280 1649 254 -267 293 582 137 24271955 2280 1697 1621 1448 1649 -159 223 199 276 -287 20511956 3376 3420 3420 3378 3377 8889 3809 2190 1526 5677 30341957 1696 2280 2280 1614 1993 745 1446 588 1415 283 26491958 3420 3420 3420 3420 3420 535 7141 14757 9134 11115 31601959 2280 2280 2137 1531 1420 1371 368 -134 548 -19 23741960 918 1140 1140 863 724 1461 607 284 606 396 19521961 864 1140 1054 724 710 1000 565 173 661 343 15621962 1696 2280 2223 2280 1592 1833 728 -401 -449 73 16701963 3420 3420 3248 3420 3377 -350 -1143 -210 -1016 -673 20951964 2250 1781 1535 1448 1449 -36 0 -8 198 -96 19161965 3420 3420 3162 3420 2947 2374 1321 3470 0 0 27351966 2280 2280 2251 2225 1449 2106 838 -682 -584 -81 22931967 3420 3420 3420 3420 3420 -802 2228 8823 7183 10555 31681968 2250 2280 2251 1475 1420 1088 1056 119 753 64 24131969 3420 3420 3420 3420 3420 24180 19398 16830 19245 23018 34741970 3420 3420 3420 2130 2216 6389 4362 655 816 0 27201971 2280 2280 2280 2252 2108 749 1436 1178 819 0 26061972 2250 2280 2280 1725 1477 0 -650 -571 -42 -94 22321973 3420 3420 3420 3295 3334 1067 3987 1380 -432 -52 25561974 3420 3420 3420 3420 3334 1741 2614 3078 381 0 29471975 3420 3420 3420 3129 3420 4442 5117 1704 -501 1579 29271976 799 793 839 710 710 1749 1040 845 798 515 21951977 771 724 710 710 710 1103 536 273 770 9 15801978 3420 3420 3420 3420 3334 4678 4207 7001 7500 6124 22471979 3420 3420 3420 2837 3291 6348 6276 2475 2200 -172 25251980 3376 3420 3420 3295 2861 19696 12921 3923 2222 5780 30051981 2280 2280 2251 1559 1420 461 2104 255 865 89 23811982 3420 3420 3420 3420 3420 12321 11649 21674 13138 7998 34191983 3420 3420 3420 3420 3420 34344 46138 20464 20532 24128 39651984 3376 3420 3420 2588 2775 7556 3564 1509 1584 361 27651985 1727 2197 1879 2003 1420 798 348 472 320 120 23521986 3420 3420 3420 3337 2732 13315 24332 8747 6740 6772 31491987 848 1140 1126 710 710 1359 1846 495 908 642 21791988 1125 890 796 710 710 833 817 864 634 371 17071989 864 863 1140 1126 710 706 888 343 45 211 15951990 1140 807 1025 710 710 640 755 -144 850 154 12621991 741 724 1126 710 710 704 1590 271 550 208 9851992 784 1140 1068 738 710 1679 745 166 -59 -82 7411993 3420 3420 3420 3420 3377 -449 -810 -241 -1726 -125 13521994 833 1112 896 710 710 1609 829 409 801 377 1096

Notes: Boxed cells indicate Goodwin release of 1,500 cfs or more. New Melones Index: Sum of end-of-February storage plus projected M-S inflow.

WetNon-compliance in at least 1 month 4/20 years.Annual Range: 15-142 TAF

Feb Mar Apr May JunNon-compliance months 2/20 1/20 1/20 2/20 2/20Range of Non-compliance - TAF 25-45 50 7 15-53 7-42

Above NormalNon-compliance in at least 1 month 10/14 years.Annual Range: 4-245 TAF

Feb Mar Apr May JunNon-compliance months 5/14 4/14 3/14 6/14 7/14Range of Non-compliance - TAF 19-81 58-70 6-46 4-31 3-77

Below NormalNon-compliance in at least 1 month 6/12 years.Annual Range: 16-56 TAF

Feb Mar Apr May JunNon-compliance months 2/12 2/12 5/12 5/12 3/12Range of Non-compliance - TAF 10-15 13-16 1-20 9-22 1-8

DryNon-compliance in at least 1 month 8/11 years.Annual Range: 5-64 TAF

Feb Mar Apr May JunNon-compliance months 2/11 2/11 5/11 5/11 5/11Range of Non-compliance - TAF 2-9 18-40 4-20 1-9 1-17

CritcalNon-compliance in at least 1 month 2/16 years.Annual Range: 4-7 TAF

Feb Mar Apr May JunNon-compliance months 0/16 0/16 1/16 1/16 1/16Range of Non-compliance - TAF 0 0 4 2 5Values shown for April/May represent non-compliance during non-pulse flow period.

Water Vernalis Flow Objective - cfs Above/Below Flow Objective - cfs NMYear Feb Mar Apr May Jun Feb Mar Apr May Jun Index - TAF

1965 3420 3420 3162 3420 2947 2374 1321 3470 0 0 27351966 2280 2280 2251 2225 1449 2106 838 -682 -584 -81 22931967 3420 3420 3420 3420 3420 -802 2228 8823 7183 10555 31681968 2250 2280 2251 1475 1420 1088 1056 119 753 64 24131969 3420 3420 3420 3420 3420 24180 19398 16830 19245 23018 34741970 3420 3420 3420 2130 2216 6389 4362 655 816 0 27201971 2280 2280 2280 2252 2108 749 1436 1178 819 0 26061972 2250 2280 2280 1725 1477 0 -650 -571 -42 -94 22321973 3420 3420 3420 3295 3334 1067 3987 1380 -432 -52 2556