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
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
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
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
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
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