Water Supply Report

August 7, 2020

Total for Month This Year Last Year

BASIN SUPPLIESWater Purchases from MWD (excludes In Lieu) 0 18,098 40,345Water into MWD Storage Account (excludes In Lieu) 0 0 0SAR & Santiago Creek Flows 15,204 179,455 240,814

(accounts for storage to/from recharge facilities)GWRS Water to Forebay 5,258 70,133 65,970GWRS Water to Mid-Basin Injection Wells 924 3,722 1,826GWRS Water to Talbert Barrier 2,171 23,777 27,424OC-44 Water to Talbert Barrier 0 2 21Alamitos Barrier Water 199 2,075 2,015Incidental Recharge (estimated) 2,000 42,100 45,236Evaporation from Recharge Basins (366) (3,363) (3,362)River Flow Lost to Ocean 0 (22,093) (75,794)

Total Groundwater Recharge 25,390 313,906 344,496

WATER PRODUCTION Groundwater Production 23,744 276,660 303,497MWD Storage Program Withdrawals 0 0 0

Total Groundwater Production 23,744 276,660 303,497

BASIN BALANCEChange in Groundwater Storage 1,647 37,246 41,000Change in Groundwater Storage excluding MWD Stored Water 1,647 37,246 41,000Accumulated Overdraft ------ 198,754 236,000Accumulated Overdraft excluding MWD Storage ------ 198,754 236,000

IN LIEU WATEROCWD In Lieu Purchases (MWD Cyclic Storage) 0 7,515 0MWD In Lieu Storage 0 0 0

Total In Lieu 0 7,515 0

OTHER KEY INFORMATION1. MWD Water Deliveries to Producers 11,789 94,389 66,3942. Basin Production Percentage 66.8% 76.6% 82.1%3. Total Water Demand 37,124 388,188 384,4744. Total GWRS Production 8,358 97,719 95,3105. Green Acres Project Water 513 4,142 3,4076. SAR Water Quality

- Total Dissolved Solids (TDS) of SAR below Prado Dam (ppm) 530 ------ 634- Total Nitrogen of SAR below Prado Dam (ppm) 1.2 ------ 5.0

7. Month-End Water Storage Behind Prado Dam 1,482 ------ 18. Month-End Water Storage in Recharge Facilities 15,739 ------ 16,7839. Water Storage Change in Recharge Facilities (1,137) (1,044) 4,20410. Total Artificial Recharge 23,390 271,806 299,26011. Monthly Mean Temperature at Santa Ana Fire Station (°F) 71.9 ------ 69.912. Rainfall at FHQ (inches) 0.04 14.02 22.04*** Note: Data are preliminary, subject to change 7/9/2020

WATER RESOURCES SUMMARYJune 2020

INFLOWS & OUTFLOWS Year to Date - (acre-feet)

Budget Actual Budget Actual Difference Percent

35,700 37,124 410,000 388,188 -21,812 94.68%

24,900 23,744 322,300 284,174 -38,126 88.17%

$11,503,800 $10,969,523 $148,902,600 $131,288,571 -$17,614,029 88.17%

Monthly Accumulated Total for the Year

Page 2 of 10

Total Water Demand

Total Pumping + In Lieu

RA Revenue

0

50

100

150

200

250

300

2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021

Flow

(MG

D)

Orange County Sanitation District Influent Flows Report

Plant 1 Influent Plant 2 Influent Total Flow

0

100

200

300

400

500

Acre

-feet

(Tho

usan

ds)

2019-20 Water Demands/Groundwater Pumping + In Lieu/RARevenue Report

Total Water Demand Budgeted Total Water Demand ActualTotal Pumping Budgeted Total Pumping Actual + In Lieu

Page 3 of 10

(500)

(400)

(300)

(200)

(100)

0

1969 1974 1979 1984 1989 1994 1999 2004 2009 2014 2019 2024

Accu

mul

ated

Ove

rdra

ft (T

AF)

Accumulated Overdraft

Overdraft w/o MWD Storage Water Overdraft

Basin Full 1969

Calendar Year

-150

-100

-50

0

50

100

150

200

00-0

1

01-0

2

02-0

3

03-0

4

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7

17-1

8

18-1

9

19-2

0

Cha

nge

in S

tora

ge (T

AF)

Water Year

YTD Change in Groundwater Storage in OCWD

2019-20 2018-19 YTD JUN 2019-20 2018-19WATER Ground- YTD YTD % Diff 2020 YTD YTDAGENCY water (1) Demand Demand Demand BPP BPP BPP

Anaheim 1,469 0 0 3,912 5,381 57,121 56,265 102% 27.3% 59.6% 80.5%

Buena Park 1,124 0 0 197 1,321 13,246 12,943 102% 85.1% 79.9% 73.2%

East Orange County 0 0 0 75 76 787 801 98% 0.5% 0.7% 70.6%

Fountain Valley 831 0 79 0 910 9,808 9,211 106% 100.0% 100.0% 100.0%

Fullerton 1,807 0 0 474 2,281 23,796 23,890 100% 79.2% 78.8% 76.9%

Garden Grove 753 0 0 1,313 2,066 21,979 22,341 98% 36.4% 50.2% 84.5%

Golden State 1,698 0 0 553 2,250 22,980 23,078 100% 75.4% 79.8% 81.4%

West OC System 1,329 - - 2 1,331 13,774 13,590 101% na na na

East OC System 369 - - 550 919 9,206 9,488 97% na na na

Huntington Beach 2,114 0 0 461 2,575 25,963 26,251 99% 82.1% 80.6% 61.1%

Irvine Ranch 4,653 0 1,225 8 5,885 61,950 59,573 104% 99.8% 99.7% 99.4%

DRWF Clear 3,000 - - - 3,000 23,718 27,342 87% na na na

DRWF Color 640 - - - 640 8,435 8,429 100% na na na

Laguna Beach 0 0 0 250 250 3,385 3,396 na 0.0% 52.8% 56.9%

La Palma 186 0 0 0 186 1,959 1,853 106% 100.0% 100.0% 100.0%

Mesa Water (MW) 1,524 0 194 0 1,718 17,053 16,870 101% 100.0% 97.5% 84.5%

MW Clear 854 - - - 854 11,364 9,813 116% na na na

MW Amber 670 - - - 670 3,885 3,760 103% na na na

Newport Beach 1,471 0 65 0 1,536 14,850 14,555 102% 100.0% 70.3% 77.1%

Orange 1,249 0 0 1,180 2,429 26,926 26,386 102% 51.4% 76.6% 82.8%

OCWD (GAP) 177 0 0 0 177 1,586 1,821 87% 100.0% 100.0% 100.0%

Santa Ana 2,145 0 29 931 3,105 33,473 33,472 100% 69.7% 77.0% 76.7%

Seal Beach 94 0 0 252 346 3,282 3,353 98% 27.1% 65.2% 71.7%

Serrano 0 0 0 270 270 2,523 2,554 99% 0.0% 55.0% 75.5%

Tustin 986 0 0 35 1,021 10,447 10,217 102% 96.5% 96.4% 87.9%

Westminster 860 0 0 113 972 10,653 10,672 100% 88.4% 77.0% 77.0%

Yorba Linda 166 0 0 1,749 1,915 19,203 18,036 106% 8.7% 52.6% 82.8%

SUBTOTAL: 23,306 0 1,592 11,774 36,671 382,967 377,540 101% 66.8% 76.6% 82.1%

Other Producers 427 0 0 15 442 5,221 6,934 75%(Est ~3% of Subtotal)

TOTAL: 23,733 0 1,592 11,789 37,114 388,188 384,474 66.8% 76.6% 82.1%

OCWD (Talbert Barrier) 0 2,171 0 2,171 23,779 27,445

OCSD (GAP) na 146 na 146 1,333 926

Estimated

(1) Excludes MWD CUP Withdrawals

(2) Includes MWD CUP Withdrawals & In Lieu Water

Page 4 of 10

PRODUCERS WATER USAGE SUMMARYJune 2020(AF except BPP)

DemandIn Reclaimed Total Total

7/9/2020 13:33

Lieu Water Import (2)

Page 5 of 10

0

50

100

150

200

250

300

350

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

Prod

uctio

n (T

AF)

Annual Groundwater Production

2017-18 2018-19 2019-20

0

100

200

300

400

500

600

99-0

0

00-0

1

01-0

2

02-0

3

03-0

4

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5

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6

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7

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11-1

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4

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5

15-1

6

16-1

7

17-1

8

18-1

9

19-2

0

Tota

l Dem

and

(TAF

)

Water Year

YTD Total Demand in OCWD

Groundwater MWD+OCWD In Lieu CUP Withdrawals Import Recycled Water

Page 6 of 10

0

50

100

150

200

250

300

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

Rec

harg

e (T

AF)

Annual Forebay Recharge

2017-18 2018-19 2019-20

0

50

100

150

200

250

300

350

00-0

1

01-0

2

02-0

3

03-0

4

04-0

5

05-0

6

06-0

7

07-0

8

08-0

9

09-1

0

10-1

1

11-1

2

12-1

3

13-1

4

14-1

5

15-1

6

16-1

7

17-1

8

18-1

9

19-2

0

Rec

harg

e (T

AF)

Water Year

YTD Artificial Recharge by OCWD

SAR & Santiago Purchases CUP Direct GWRS

RIVER SYSTEM 106 cfs per day averageDESILTING SYSTEMOFF-RIVER SYSTEM SARWARNER SYSTEM SAROLIVE BASIN Passive SystemANAHEIM LAKE SARMINI-ANA LAKE SARMILLER BASIN SARKRAEMER BASIN SARLA PALMA BASINMIRA LOMA did not use, all GWRS flow to La PalmaLA JOLLA BASINPLACENTIA BASINRAYMOND BASINFIVE COVES BASIN SARBURRIS BASINRIVER VIEW BASINFLETCHER BASINSANTIAGO BASINSSANTIAGO CREEKTOTALS5-YR AVERAGE

Imperial Headgates (estimated) 13,984 Est'd SAR flow past Chapman Ave. 0GWRS 5,259OC-28 (MWD) 0 Est'd Santiago Cr. flow to SAR 0OC-28a (MWD) 0 Est'd flows past Raymond Basin 0CB-11 0CB-18 0Est'd local Forebay inflow below Imperial 23 Calc'd evap (inches) Estimated 6.27Est'd local Santiago inflow (estimated) 58 Est'd evaporative losses 366Irvine lake releases (OC-13 MWD) 0Villa Park Dam releases (estimated) 0Precip at Warner Basin (inches) 0.04Precip direct to open water surfaces 2TOTAL INFLOW 19,326 TOTAL LOSSES

Facility Begin End Net

Deep basins 10,966 10,655 -311 TOTAL INFLOW 19,326Santiago Pits 5,910 5,084 -826 TOTAL LOSSES 366River 0 STORAGE CHANGE -1,137Off-river 0 CALC'D PERCOLATION 20,098

Irvine LakeTOTAL 16,876 15,739 -1,137

Page 7 of 10

STORAGE CHANGES (AF) SUMMARY (AF)

FLOWS TO RECHARGE AREAS (AF) LOSSES FROM RECHARGE AREAS (AF)

366

20,321

1,121

0402na480na

1,4140

8850

20,098

5,256

0

1,256

RECHARGE AREAS REPORTJune 2020

Percolation (AF) Remarks6,326

na489978na

1,245246

Facility Storage Storage Maximum Total Max Avg Avg W.S.

Start End Storage Perc Perc Perc Elev

Desilting Ponds 230 230 230 na na na na

Fos-Huckleberry 564 555 630 na na na na

Conrock Basin 597 586 660 na na na na

Warner Basins 2,899 2,842 2,810 978 na na 238

Olive Pit 84 80 183 na na na 220

Anaheim Lake 2,271 2,181 2,300 1,245 60 41 222

Mini-Anaheim Lk 12 6 21 246 na na 223

Miller Basin 371 342 340 1,256 77 42 219

Kraemer Basin 1,026 1,018 1,050 1,121 60 37 216

La Palma Basin 9 16 105 5,256 184 175 213

Mira Loma 0 0 62 0 0 0 210

La Jolla Basin 18 19 36 402 17 13 203

Placentia Basin 0 0 350 na na na na

Raymond Basin 200 200 370 480 na na na

Five Coves Basins 213 213 350 na na na na

Burris Pit 2,472 2,366 2,670 1,414 52 47 171

River View Basin 0 0 12 0 0 0 na

Fletcher Basin 0 0 15 0 0 0 na

Santiago (Bond) 4,182 3,683 8,690 885 44 29 230

Santiago (Blu Dia) 1,728 1,401 5,240 - - - -

Totals 16,876 15,739 26,124 13,283

Prado Dam 9,032 1,482 25,000

Page 8 of 10

DEEP BASINS MONTHLY STATUSJune 2020

(values in acre-feet)

Page 9 of 10

0

5

10

15

20

25

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

Rai

nfal

l (In

ches

)

Cumulative Anaheim Field HQ Rainfall

Avg. Rain Since 1986 2018-19 2019-20

54

59

64

69

74

79

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

Tem

pera

ture

(F˚)

Temperature at Santa Ana Fire Station

15-yr. Avg. 2018-19 2019-20

Page 10 of 10

2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021-40

-30

-20

-10

0

10

20

30

40W

ater

Lev

el E

leva

tion

(Fee

t MS

L)

0

1,000

2,000

3,000

Talb

ert B

arrie

r In

ject

ion

(A-f

t)

Talbert/Lambda Aquifer Mergence ZonePerforated Interval: 71 - 135 ft. bgs

Talbert Barrier Injection

Protective Level to Prevent Seawater Intrusion

TALBERT BARRIER MONITORING WELL OCWD-M26

9,000

6,000

3,000

0

Gro

undw

ater

Pro

duct

ion

(A-f

t)

Fountain Valley Groundwater Production

IRWD Groundwater Production

Mesa Water Groundwater Production

Huntington Beach Groundwater Production

Newport Beach Groundwater Production

Orange County Rainfall ReportJune 5, 2020

0.00 20.00 40.00 60.00

Villa Park

Santiago Peak

Santa Ana

Laguna NiguelPark

Costa Mesa

0.02

0.00

0.01

0.00

0.00

14

30

15

17

12

23

54

22

21

17

14

30

15

17

12

AVERAGE TO DATE

LAST YEAR TO DATE

THIS YEAR TO DATE

CURRENT STORM

6,000 IRWD&Serrano for IL

6,000

[1]

[2] GW for consumptive use only. Excludes In-Lieu water deliveries and CUP water extraction that are counted with Import. BPP in FY '19-20 is 77%.[3] [4] Total water usage includes IRWD groundwater agricultural use and usage by non-retail water agencies.

Imported water for consumptive use. Includes "In-Lieu" deliveries and CUP water extraction. Excludes "Direct Replenishment" deliveries of spreading water and deliveries into Irvine Lake.

MWDOC's estimate of monthly demand is based on the projected 5 Year historical retail water demand and historical monthly demand patterns.

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.00

10,000

20,000

30,000

40,000

50,000

60,000

Jul-1

9

Aug-

19

Sep-

19

Oct

-19

Nov

-19

Dec

-19

Jan-

20

Feb-

20

Mar

-20

Apr-2

0

May

-20

Jun-

20

Rai

nfal

l (In

ches

)

ACR

E-FE

ET

Fig. 1 OC Water Usage, Monthly by Supplywith projection to end of fiscal year

Surface Water Non-OCWD GroundwaterRecycled (Non Potable) Import [1]projected [3] OCWD Basin [2]Rainfall

6,000 IRWD&Serrano for IL

6,000

[1] Sum of Imported water for consumptive use (includes "In-Lieu" deliveries; excludes "Direct Replenishment "and "Barrier Replenishment") and Local water for consumptive use (includes recycled and non-potable water and excludes GWRS production) Recent months numbers include some estimation.

505560657075808590

0

10,000

20,000

30,000

40,000

50,000

60,000Ju

l-19

Aug-

19

Sep-

19

Oct

-19

Nov

-19

Dec

-19

Jan-

20

Feb-

20

Mar

-20

Apr-2

0

May

-20

Jun-

20 Aver

age

Hig

h Te

mpe

ratu

re (F

)

ACR

E-FE

ET

Fig. 1B OC Water Usage, Monthly by Supplywith projection to end of fiscal year

Surface Water Non-OCWD GroundwaterRecycled (Non Potable) Import [1]OCWD Basin [2] projected [3]Projected FY 17‐18

 ‐

 100,000

 200,000

 300,000

 400,000

 500,000

 600,000

 700,000

'69‐70

'71‐72

'73‐74

'75‐76

'77‐78

'79‐80

'81‐82

'83‐84

'85‐86

'87‐88

'89‐90

'91‐92

'93‐94

'95‐96

'97‐98

'99‐00

'01‐02

'03‐04

'05‐06

'07‐08

'09‐10

 11‐12

 13‐14

 15‐16

 17‐18

 19‐20

 21‐22

 23‐24

 25‐26

 27‐28

 29‐30

 31‐32

 33‐34

 35‐36

 37‐38

 39‐40

O.C. A

nnual W

ater Usage (A

F)

Fiscal Year

Fig. 1B O.C. Historical Water Usage

Hi, Avg and Low from O.C. Water Reliability Study

-

10,000

20,000

30,000

40,000

50,000

60,000

70,000

Jul

Aug

Sep

Oct

Nov

Dec Jan

Feb

Mar Ap

r

May Jun

ACR

E-FE

ET

Fig. 2 OC Monthly Water Usage [1]: Comparison to Last 4 FiscalYears

FY 15-16 FY 16-17 FY 17-18 FY 18-19 FY 19-20

June 2020

0

100,000

200,000

300,000

400,000

500,000

600,000

700,000

ACR

E-FE

ET

YTD Totals

Partial Year Subtotals

Accumulated Precipitationfor the Oct.‐Sep.  water year, early August 2020

* The date of maximum snowpack accumulation (April 1st in Northern Calif. ,  April 15th in the Upper Colorado Basin) is used for year to year comparison.  

0

10

20

30

40

50

60

70

ORANGE COUNTY 

(SANTA ANA)

RIVERSIDE (AIRPORT)

N. SIERRAS 8‐STATION INDEX

NORTHERN CALIF. 

SNOWPACK

UPPER BASIN COLORADO PRECIP.

UPPER BASIN COLORADO SNOWPACK

116%82%

65%

71% 83% 100%

Inches

This Year to date Average to date Average End of Year

CA Snowpack on 4/8/2020

ColoradoSnowpack

on4/6/2020

% = Percent of Average to Date

Jul‐18 Aug‐18 Sep‐18 Oct‐18 Nov‐18 Dec‐18 Jan‐19 Feb‐19 Mar‐19 Apr‐19 May‐19 Jun‐19AO (AF) 285,494     296,106     308,748     312,758     312,782     305,367     289,860     267,879     251,876     243,604     234,048     236,005    

AO w/CUP removed (AF) 285,494     296,106     308,748     312,758     312,782     305,367     289,860     267,879     251,876     243,604     234,048     236,005    Jul‐19 Aug‐19 Sep‐19 Oct‐19 Nov‐19 Dec‐19 Jan‐20 Feb‐20 Mar‐20 Apr‐20 May‐20 Jun‐20

AO (AF) 244,057     256,239     258,445     261,464     261,645     248,909     249,051     231,354     231,354     216,098     196,677     198,754    AO w/CUP removed (AF) 244,057     256,239     258,446     261,464     261,645     248,909     249,051     231,354     231,354     216,098     196,677     198,754    

* Source ~ OCWD Monthly Board of Directors Packet

0

50,000

100,000

150,000

200,000

250,000

300,000

350,000

400,000

450,000

500,000

550,000 Jul‐13Sep‐13Nov‐13

Jan‐14Mar‐14

May‐14

Jul‐14Sep‐14Nov‐14

Jan‐15Mar‐15

May‐15

Jul‐15Sep‐15Nov‐15

Jan‐16Mar‐16

May‐16

Jul‐16Sep‐16Nov‐16

Jan‐17Mar‐17

May‐17

Jul‐17Sep‐17Nov‐17

Jan‐18Mar‐18

May‐18

Jul‐18Sep‐18Nov‐18

Jan‐ 19Mar‐19

May‐19

Jul‐19Sep‐19Nov‐19

Jan‐20Mar‐20

May‐20

Acre Feet

Accumulated Overdraft of the OCWD Groundwater Basin as of June 2020

Accumulated Overdraft (AO) AO with CUP RemovedThreshold for Mitigation Against Increasing AO Bottom of Basin Operating Range

Full

Recommended Target Overdraft 

Source of data = OCWD monthly Water Resources Report in Board meeting packet

Final 2017:  ???

10%10%

15%30%

45%

60% 60% 60%

20%20%

45%

60%

60%

85% 85% 85%

15%15%

15%

20%

20%

30%35% 35%

10%

10%15%

35%

70% 70% 70%75%

10% 10%15% 15%

15%15%

20% 20%

Nov. Dec. Jan. Feb. Mar. Apr. May Jun.

SWP TABLE A ALLOCATIONFOR STATE WATER PROJECT CONTRACTORS

Water Year 2016 Water Year 2017 Water Year 2018 Water Year 2019 Water Year 2020

Final  2016:   60%1.15 MAF to MWD

Final  2017:   85%1.62 MAF to MWD

Final 2018:  35%0.67 MAF to MWD

Final 2020:  20%0.38 MAF to MWD

Final 2019: 75%1.43 MAF to MWD

prepared by the Municipal Water District of Orange County*Number are Subuject to Change

0

5

10

15

20

25

51% 75%Million  Acre‐Feet

Lake Powell

0.00.51.01.52.02.5

47% 73%

Million  Acre‐Feet

San Luis Resv.

0.00.51.0 88%

Diamond Valley

0.0

1.0

2.0

3.0

4.0

5.0

58% 82%Million  Acre‐Feet

Lake Shasta

0.01.02.03.04.0

52% 73%

Million  Acre‐Feet

Lake Oroville

State Water Project, Colorado River, and MWD Reservoir Storage  as of August 3, 2020

0

5

10

15

20

25

40% 54%Million  Acre‐Feet

Lake Mead

% of Capacity % of Historical Avg. 

0.00.51.0 85%Lake Mathews

58%

172%

43%

147%

98%

5%24%

48%

76%

173%

127%

88%

107%

48%

144%

119%103%

84%98%

Average = 28 Inches

0

10

20

30

40

50

60

2020201920182017201620152014201320122011201020092008200720062005200420032002

Snow

 Water Equ

ivalen

t (Inches)

Historical Northern California April 1st Peak Snow Water Equivalent

97%

128%

74%

108%

79%

54%

105%

78%

53%

132%

90%

112%

126%

78%

112%120%

84%85%

51%

Average = 20 Inches

0

5

10

15

20

25

30

2020201920182017201620152014201320122011201020092008200720062005200420032002

Snow

 Water Equ

ivalen

t (Inches)

Historical Colorado Basin April 15th Peak Snow Water Equivalent

Shortage Trigger = 1,075 ft

Spillway Elevation = 1,221 ft

Surplus Trigger = 1,145 ft

1,030

1,055

1,080

1,105

1,130

1,155

1,180

1,205

1,230

Elevation (Ft)

Lake Mead Levels:  Historical and Projectedprojection per USBR 24‐Month Study

Historical Projected

Spillway Elevation = 3,715 ft

3,530

3,555

3,580

3,605

3,630

3,655

3,680

3,705

Elevation (Ft)

Lake Powell Levels:  Historical and Projectedprojection per USBR 24‐Month Study

Historical Projected

Historic Peak July 1983 @ 1,225 Feet

Historical Low (Since Filled) June 2016 @ 1,071 Feet

Shortage Trigger 1,075 Feet

Dead Pool 895 Feet

675

725

775

825

875

925

975

1,025

1,075

1,125

1,175

1,225

Elevation Ab

ove Sea Level (Feet)

Lake Mead Historical Water Elevation Level

Hoover Dam

Intake Tower