November 24-Month Study Date: November 14, 2019 · November 24-Month Study projects an annual release of 8.23 maf in water year 2020. Consistent with Section 2.B.5 of the Interim

November 24-Month Study Date: November 10, 2020

From: Water Resources Group, Salt Lake City To: All Colorado River Annual Operating Plan (AOP) Recipients Current Reservoir Status

Reservoir

October Inflow

(unregulated) (acre-feet)

Percent of Average

(%)

November 8, Midnight Elevation

(feet)

November 8, Midnight Reservoir Storage

(acre-feet) Fontenelle 31,500 65 6,490.31 229,200 Flaming Gorge 26,200 44 6,025.38 3,174,300 Blue Mesa 20,000 52 7,463.63 394,000 Navajo 7,200 15 6,038.74 1,099,300 Powell 91,400 18 3,590.73 10,886,700

_______________________________________________________________________ Expected Operations

The operation of Lake Powell and Lake Mead in this November 2020 24-Month Study is pursuant to the December 2007 Record of Decision on Colorado River Interim Guidelines for Lower Basin Shortages and the Coordinated Operations of Lake Powell and Lake Mead (Interim Guidelines), and reflects the 2020 Annual Operating Plan (AOP) and draft 2021 AOP. Pursuant to the Interim Guidelines, the August 2020 24-Month Study projections of the January 1, 2021, system storage and reservoir water surface elevations set the operational tier for the coordinated operation of Lake Powell and Lake Mead during 2021.

The August 2020 24-Month Study projected the January 1, 2020, Lake Powell elevation to be below the 2021 Equalization Elevation of 3,659 feet and above elevation 3,575 feet. Consistent with Section 6.B of the Interim Guidelines, Lake Powell will operate in the Upper Elevation Balancing Tier for water year 2021, with an initial water year release volume of 8.23 maf and the potential for an April adjustment to equalization or balancing releases in April 2021. This November 2020 24-Month Study indicates that, consistent with Section 6.B.4 of the Interim Guidelines, an April adjustment to balancing releases is projected to occur and the contents of Lake Powell and Lake Mead will be balanced by the end of the water year, but not more than 9.0 maf and not less than 8.23 maf shall be released from Lake Powell. Based on the most probable inflow forecast, this November 24-Month Study projects a balancing release of 8.234 maf in water year 2021.

Consistent with Section 2.B.5 of the Interim Guidelines, the Intentionally Created Surplus (ICS) Surplus Condition is the criterion governing the operation of Lake Mead for calendar years 2020 and 2021. In addition, Section III.B of Exhibit 1 to the Lower Basin Drought Contingency Plan (DCP) Agreement is also governing the operation of Lake Mead in calendar years 2020 and 2021.

The 2021 operational tier determinations for Lake Powell and Lake Mead will be documented in the 2021 AOP, which is currently in development.

The 2020 AOP is available for download at: https://www.usbr.gov/lc/region/g4000/aop/AOP20.pdf.

The draft 2021 AOP is available for download at: https://www.usbr.gov/uc/water/rsvrs/ops/aop/AOP21_draft.pdf.

The Interim Guidelines are available for download at: https://www.usbr.gov/lc/region/programs/strategies/RecordofDecision.pdf.

The Colorado River DCPs are available for download at: https://www.usbr.gov/lc/region/programs/dcp.html.

Fontenelle Reservoir As of November 2, 2020, the Fontenelle Reservoir pool elevation is 6490.80 feet, which amounts to 67 percent of live storage capacity. Inflows for the month of October totaled 31,500 acre-feet (af) or 65 percent of average.

Fontenelle releases are currently 900 cfs. Due to scheduled maintenance releases have been switched from power generation to bypass until early November.

The November final forecast for unregulated inflows into Fontenelle for the next three months projects below average conditions. November, December, and January inflow volumes amount to 35,000 af (83 percent of average), 28,000 af (88 percent of average), and 27,000 af (89 percent of average), respectively.

The 2021 water year unregulated inflow volume is forecasted to be 837,000 af (77 percent of average). This is a decrease when compared to the October forecast when the unregulated inflow volume was forecasted to be 890,000 af (82 percent of average).

The August 27, 2020, Fontenelle Working Group meeting minutes are available online on USBR’s website at https://www.usbr.gov/uc/water/crsp/wg/ft/ftcurrnt.html. The next Fontenelle Working Group meeting is scheduled for April 22, 2021. The meeting will be held at 10:00am at the Seedskadee National Wildlife Refuge. Depending on the COVID-19 (Coronavirus) situation we may need to change it to a virtual meeting using WebEX. The Fontenelle Working Group is an open public forum for information exchange between Reclamation and other parties associated with the operation of Fontenelle Reservoir.

https://www.usbr.gov/lc/region/programs/dcp.html

Flaming Gorge -- As of November 3, 2020 Flaming Gorge Reservoir pool elevation is 6025.39 feet, which amounts to 85 percent of live storage capacity. Unregulated inflows for the month of October is approximately 26,000 acre-feet (af), which is 44% of the average October unregulated inflow volume and corresponds to an 94% exceedance value.

The October observed unregulated inflow calculates to a dry hydrologic classification. Operations will remain at a moderately dry hydrologic condition operation per the Flaming Gorge 2020-2021 Operation Plan.

The summer base flow period ended on September 30, 2020. Autumn average daily releases will meet moderately dry hydrologic condition lower targets in Reach 2 (1,100 cfs to 1,500 cfs includes flows from the Yampa River). The daily average release of 900 cfs will be maintained through November.

The November final forecast for unregulated inflows into Flaming Gorge for the next three months projects below average conditions. November, December, and January forecasted unregulated inflow volumes amount to 40,000 af (78 percent of average), 30,000 af (86 percent of average) and 35,000 af (87 percent of average), respectively. The 2021 water year unregulated inflow volume is projected to be 1,036,170 af (71 percent of average). This is notably decreased from October when the unregulated inflow volume was projected to be 1,115,000 af (77 percent of average).

Reclamation is planning to hold the next Flaming Gorge Working Group meeting on March 18, 2021 in Price, Utah or via WebEx. The place and in-person meeting TBD. The Flaming Gorge Working Group is an open public forum for information exchange between Reclamation and the stakeholders of Flaming Gorge Dam. The public is encouraged to attend and comment on the operations and plans presented by Reclamation at these meetings. Meeting notes from past Working Group meetings are posted on the Working Group webpage. For more information on this group and these meetings please contact Dale Hamilton at 801-379-1186.

Aspinall Unit Reservoirs – As of November 4, 2020 releases from Crystal Dam are approximately 400 cfs. Gunnison Tunnel diversions have been terminated for the irrigation season. There will be periodic diversions to refill Fairview Reservoir about every 2 weeks throughout the winter months. Flows in the Black Canyon are about 380 cfs.

Blue Mesa did not fill in 2020. On June 19, 2020, the elevation of Blue Mesa was 7492.87 feet above sea level corresponding to a live storage of 603,855 af (72.8 percent of capacity). This was the peak elevation achieved after the spring runoff during 2020. As of November 4, 2020, the elevation of Blue Mesa was 7463.47 feet corresponding to a live storage of 392,975 af (47.4 percent of capacity).

The unregulated inflow volume in October to Blue Mesa was 20,053 af (53 percent of average). Unregulated Inflow volumes forecasted for Blue Mesa for the next three

months (November, December and January) are projected to be: 20,000 af (65 percent of average), 19,000 af (73 percent of average) and 17,000 af (71 percent of average), respectively. The November 24-Month Study is reflective of these new forecasts. The 2021 water year unregulated inflow volume is projected to be 650,054 af (68 percent of average). This is notably decreased from October when the unregulated inflow volume was projected to be 755,000 af (79 percent of average).

The Aspinall Unit Working Group is an open public forum for information exchange between Reclamation and the stakeholders of the Aspinall Unit. The public is encouraged to attend and comments on the operations and plans presented by Reclamation at these meetings. Meeting notes from past working Group meetings are posted on the Working Group webpage. For more information on this group and these meetings please contact Erik Knight in the Grand Junction Area Office at (970) 248-0629.

The next scheduled working group meeting will be in January of 2021 but no date has been set at this time. More details will be posted as they become available.

Navajo Reservoir – On November 4th, the daily average release rate from Navajo Dam was approximately 400 cfs while reservoir inflow was averaging approximately 182 cfs. The water surface elevation was 6039.1 feet above sea level. At this elevation the live storage is 1,100,751 maf (65 percent of live storage capacity) and the active storage is 0.439 maf (42 percent of active storage capacity). NIIP has shut down for the season. The San Juan-Chama project is not currently diverting from the basin above the reservoir. The river flow measured at the Animas River at Farmington USGS gage was at 216 cfs. River flow at the San Juan River at Four Corners USGS gage was 730 cfs. Releases from Navajo Dam are made for authorized purposes of the Navajo Unit and are pursuant to the Record of Decision for the Navajo Reservoir Operations. Releases target the San Juan River Recovery Implementation Program's recommended downstream baseflow range of 500 cfs to 1,000 cfs through the critical habitat reach of the San Juan River (Farmington, NM to Lake Powell). Current modeling shows the release will most likely vary between 250 and 500 cfs to accomplish this for the remainder of fall and early winter. Navajo was at 6039.1 ft of pool elevation and 1,103,003 acre-ft of storage by the end of October, which was 82% of average for the end of the month. The release averaged 690 cfs and totaled 42,549 af, which was 101% of average for the month. Preliminary modified unregulated inflow (MUI) into Navajo was 7,189 af. Calculated evaporation for the month was 1,490 af. Navajo had a net storage loss of 48,429 af in October. The most probable inflow forecast for November, December and January, is 12,000 af (37% of average), 13,000 af (52% of average), and 12,000 af (55% of average), respectively. The 2021 water year modified unregulated inflow volume is projected to be 610,000 af (57 percent of average). This is a decrease from October when the modified unregulated inflow volume was projected to be 705,000 af (66 percent of average).

Reclamation conducts Public Operations Meetings three times per year to gather input for determining upcoming operations for Navajo Reservoir. Input from individuals, organizations, and agencies along with other factors such as weather, water rights, endangered species requirements, flood control, hydro power, recreation, fish and wildlife management, and reservoir levels, will be considered in the development of these reservoir operation plans. In addition, the meetings are used to coordinate activities and exchange information among agencies, water users, and other interested parties concerning the San Juan River and Navajo Reservoir. The next meeting will be conducted either (in-person or virtually, depending on the local and governmental guidance at the time) in late January of 2021. Glen Canyon Dam / Lake Powell Current Status

The unregulated inflow volume to Lake Powell during October was 91 thousand acre-feet (kaf) (18 percent of average). The release volume from Glen Canyon Dam in October was 640 kaf. The end of October elevation and storage of Lake Powell were 3591.72 ft (108 feet from full pool) and 10.98 maf (45 percent of full capacity), respectively.

Current Operations The operating tier for water year 2021 (September 2020 through October 2021) was established in August 2020 as the Upper Elevation Balancing Tier, consistent with Section 6.B of the Interim Guidelines. Consistent with Section 6.B of the Interim Guidelines, Lake Powell’s operations in water year 2021 will be governed by the Upper Elevation Balancing Tier. With an 8.23 million acre-foot (maf) release from Lake Powell in water year 2021, the November 2020 24-Month Study projects the end of water year elevation at Lake Powell to be above 3,575 feet, and the end of water year elevation at Lake Mead to be below 1,075 feet. Therefore, in accordance with Section 6.B.4 of the Interim Guidelines, an April adjustment to balancing releases is projected to occur and the contents of Lake Powell and Lake Mead will be balanced by the end of the water year, but not more than 9.0 maf and not less than 8.23 maf shall be released from Lake Powell. Based on the most probable inflow forecast, this November 24-Month Study projects a balancing release of 8.234 maf in water year 2021. In November, the release volume will be approximately 640 kaf, with fluctuations anticipated between about 7,021 cfs in the nighttime to about 12,781 cfs in the daytime, and consistent with the Glen Canyon Dam, Record of Decision (dated December 2016). The anticipated release volume for December is 720 kaf with daily fluctuations between approximately 8,027 cfs and 14,507 cfs. The expected release for January is 760 kaf. In addition to daily scheduled fluctuations for power generation, the instantaneous releases from Glen Canyon Dam may also fluctuate to provide 40 megawatts (mw) of system regulation. These instantaneous release adjustments stabilize the electrical generation and transmission system and translate to a range of about 1,100 cfs above or below the hourly scheduled release rate. Under system normal conditions, fluctuations

for regulation are typically short lived and generally balance out over the hour with minimal or no noticeable impacts on downstream river flow conditions. Releases from Glen Canyon Dam can also fluctuate beyond scheduled releases when called upon to respond to unscheduled power outages or power system emergencies. Depending on the severity of the system emergency, the response from Glen Canyon Dam can be significant, within the full range of the operating capacity of the power plant for as long as is necessary to maintain balance in the transmission system. Glen Canyon Dam currently maintains 30 mw (approximately 800 cfs) of generation capacity in reserve in order to respond to a system emergency even when generation rates are already high. System emergencies occur fairly infrequently and typically require small responses from Glen Canyon Dam. However, these responses can have a noticeable impact on the river downstream of Glen Canyon Dam.

Inflow Forecasts and Model Projections The forecast for water year 2020 unregulated inflow to Lake Powell, issued on November 1, 2021, by the Colorado Basin River Forecast Center, projects that the most probable (median) unregulated inflow volume this year will be 6.79 maf (63 percent of average). This is notably decreased from October when the unregulated inflow volume was projected to be 7.9 maf (73 percent of average).

There is significant uncertainty regarding next season’s snowpack development and resulting runoff into Lake Powell. Reclamation updates the minimum and maximum probable forecasts four times a year: January, April, August and October. The October forecast for water year 2021 ranges from a minimum probable of 5.17 maf (48 percent of average) to a maximum probable of 16 maf (148 percent of average). There is a 10 percent chance that inflows could be higher than the current maximum probable forecast and a 10 percent chance that inflows could be lower than the minimum probable forecast. Based on the current forecast of 6.79 maf unregulated inflow, the November 24-Month Study projects Lake Powell elevation will end water year 2021 near 3,575.04 feet with approximately 9.5 maf in storage (39 percent of capacity). Note that projections of elevation and storage for water year 2021 have significant uncertainty at this point in the season. Projections of end of water year 2021 elevation and storage using the minimum and maximum probable inflow forecast from October 2020 are 3,563.36 feet (8.58 maf, 35 percent of capacity) and 3,649.33 feet (17 maf, 70 percent of capacity), respectively. Under these scenarios, there is a 10 percent chance that inflows will be higher, resulting in higher elevation and storage, and 10 percent chance that inflows will be lower, resulting in lower elevation and storage. The annual release volume from Lake Powell during water year 2021 is projected to be 8.234 maf under the November most probable scenario, and 8.23 maf under the October minimum and maximum probable inflow scenarios. Upper Colorado River Basin Hydrology Upper Colorado River Basin regularly experiences significant year to year hydrologic variability. During the 21-year period 2000 to 2020, however, the unregulated inflow to

Lake Powell, which is a good measure of hydrologic conditions in the Colorado River Basin, was above average in only 4 out of the past 19 years. The period 2000-2020 is the lowest 21-year period since the closure of Glen Canyon Dam in 1963, with an average unregulated inflow of 8.62 maf, or 80 percent of the 30-year average (1981-2010). (For comparison, the 1981-2010 total water year average is 10.83 maf.) The unregulated inflow during the 2000-2020 period has ranged from a low of 2.64 maf (24 percent of average) in water year 2002 to a high of 15.97 maf (147 percent of average) in water year 2011. In water year 2018 unregulated inflow volume to Lake Powell was 4.6 maf (43 percent of average), the third driest year on record above 2002 and 1977. Under the current most probable forecast, the total water year 2021 unregulated inflow to Lake Powell is projected to be 6.79 maf (63 percent of average).

At the beginning of water year 2021, total system storage in the Colorado River Basin was 28.88 maf (48 percent of 59.6 maf total system capacity). This is a decrease of 2.77 maf over the total storage at the beginning of water year 2020 when total system storage was 31.64 maf (53 percent of capacity). Since the beginning of water year 2000, total Colorado Basin storage has experienced year to year increases and decreases in response to wet and dry hydrology, ranging from a high of 94 percent of capacity at the beginning of 2000 to the now current level of 48 percent of capacity at the beginning of water year 2021. Based on current inflow forecasts, the current projected end of water year total Colorado Basin reservoir storage for water year 2021 is approximately 26.12 maf (44 percent of total system capacity). The actual end of water year 2021 system storage may vary from this projection, primarily due to uncertainty regarding this season’s runoff and reservoir inflow.

TO ALL ANNUAL OPERATING PLAN RECIPIENTS MAILED FROM UPPER COLORADO REGION WATER RESOURCES GROUP ATTENTION UC-430 125 SOUTH STATE STREET, ROOM 8100 SALT LAKE CITY, UT 84138-5571 PHONE 801-524-3709 ******************************************************************************** RUNOFF AND INFLOW PROJECTIONS INTO UPPER BASIN RESERVOIRS ARE PROVIDED BY THE COLORADO RIVER FORECASTING SERVICE THROUGH THE NATIONAL WEATHER SERVICES'S COLORADO BASIN RIVER FORECAST CENTER AND ARE AS FOLLOWS : Obs sep Forecast : jul aug sep oct %Avg nov dec jan GLDA3:Lake Powell 290 -19.85 47 91 18%: 250/ 250/ 240/ GBRW4:Fontenelle 145 41 25 31 64%: 35/ 28/ 27/ GRNU1:Flaming Gorge 158 35 28 26 44%: 40/ 30/ 35/ BMDC2:Blue Mesa 46 26 23 20 53%: 20/ 19/ 17/ MPSC2:Morrow Point 47 27 23 21 52%: 22/ 20/ 18/ CLSC2:Crystal 48 27 25 23 49%: 24/ 23/ 21/ TPIC2:Taylor Park 7.7 4.1 5.7 4.3 65%: 3.8/ 3.5/ 3.2/ VCRC2:Vallecito 11.2 5.4 4.1 2.6 17%: 2.9/ 2.6/ 2.5/ NVRN5:Navajo 3.3 -15.04 -7.36 7.4 16%: 14/ 13/ 12/ LEMC2:Lemon 2.3 1.38 0.69 0.37 12%: 0.4/ 0.4/ 0.3/ MPHC2:McPhee 8.9 7.9 8.1 1.49 17%: 2.0/ 2.2/ 2.4/ RBSC2:Ridgway 10.4 3.8 3.2 3.4 44%: 3.4/ 3.2/ 2.9/ YDLC2:Deerlodge 28 4.4 5.2 14 40%: 23/ 20/ 20/ DRGC2:Durango 28 13.8 9.9 7.3 26%: 8.0/ 8.0/ 7.5/

Most Probable Inflow*November 2020 24-Month Study

Fontenelle Reservoir

OPERATION PLAN FOR COLORADO RIVER SYSTEM RESERVOIRS

Reservoir ElevEnd of Month

(Ft)

LiveStorage

(1000 Ac-Ft)

TotalRelease

(1000 Ac-Ft)

RegulatedInflow

(1000 Ac-Ft)Date

EvapLosses

(1000 Ac-Ft)

PowerRelease

(1000 Ac-Ft)

BypassRelease

(1000 Ac-Ft)

46 63 6491.39 2361 63 0Nov 2019*36 64 6487.01 2081 64 0Dec 2019H34 64 6481.89 1771 64 0Jan 2020I32 60 6476.34 1471 60 0Feb 2020S54 65 6473.94 1361 65 0Mar 2020T83 73 6475.89 1451 73 0Apr 2020O

161 101 6486.37 2031 101 0May 2020R288 180 6501.43 3092 107 73Jun 2020I145 121 6504.12 3303 99 23Jul 2020C41 74 6499.62 2952 74 0Aug 2020A25 61 6494.55 2582 26 35Sep 2020L

996 99315 856 137WY 2020

32 55 6490.95 2331 0 55Oct 2020*

35 54 6487.98 2151 54 0Nov 202028 55 6483.55 1871 55 0Dec 202027 55 6478.36 1581 55 0Jan 202125 50 6473.09 1330 50 0Feb 202142 58 6469.44 1170 58 0Mar 202165 60 6470.60 1221 60 0Apr 2021110 62 6480.32 1691 62 0May 2021225 96 6499.56 2962 96 0Jun 2021150 105 6505.03 3383 101 4Jul 202158 67 6503.64 3272 67 0Aug 202140 60 6500.88 3062 19 40Sep 2021

837 77515 676 99WY 2021

42 61 6498.13 2851 61 0Oct 202142 71 6493.92 2551 71 0Nov 202133 74 6487.69 2131 74 0Dec 202131 74 6480.53 1701 74 0Jan 202229 67 6472.75 1311 67 0Feb 202253 69 6468.87 1140 69 0Mar 202282 73 6470.96 1231 73 0Apr 2022

169 91 6485.54 1991 91 0May 2022278 176 6499.96 2992 103 73Jun 2022164 137 6503.11 3233 102 35Jul 202271 65 6503.49 3262 65 0Aug 202244 60 6501.23 3082 60 0Sep 2022

1037 101915 911 108WY 2022

45 61 6498.85 2901 61 0Oct 2022

* Based on the Colorado River Basin Forecast Center's Most Probable Water Supply Forecast Model Run ID: 3130 Processed On: 11/5/2020 3:58:22PM


Flaming Gorge Reservoir



(Ft)

LiveStorage

(1000 Ac-Ft)

TotalRelease

(1000 Ac-Ft)

EvapLosses

(1000 Ac-Ft)Date

BankStorage

(1000 Ac-Ft)

PowerRelease

(1000 Ac-Ft)

UnregInflow

(1000 Ac-Ft)

JensenFlow

(1000 Ac-Ft)

BypassRelease

(1000 Ac-Ft)

RegInflow

(1000 Ac-Ft)81 6030.9981 11533871364 0Nov 2019* 63 79

128 6029.43128 16933271342 0Dec 2019H 39 67133 6028.03133 16832741322 0Jan 2020I 49 80124 6026.75124 15732251302 0Feb 2020S 47 76119 6026.61119 22832201303 0Mar 2020T 106 117112 6026.26112 30832071295 0Apr 2020O 114 10498 6026.81129 67232281308 31May 2020R 218 158

157 6027.76188 530326313110 31Jun 2020I 343 23690 6028.5590 131329313313 0Jul 2020C 158 134112 6027.10112 124323813012 0Aug 2020A 35 6798 6025.9398 112319512911 0Sep 2020L 28 64

1333 1395 282580 62WY 2020 1253 1251

64 6025.3964 8531751287 0Oct 2020* 26 50

54 6025.4354 7731761283 0Nov 2020 40 5961 6025.2861 8131711282 0Dec 2020 30 5761 6025.2861 8131711282 0Jan 2021 35 6356 6025.3456 7631731282 0Feb 2021 35 6064 6026.1664 12632031293 0Mar 2021 83 9962 6027.0062 22732351305 0Apr 2021 105 10070 6027.4970 49532531318 0May 2021 145 97

125 6027.24125 545324413110 0Jun 2021 255 12665 6028.4165 130328813213 0Jul 2021 170 12592 6027.6792 112326013113 0Aug 2021 67 7689 6026.7589 104322613011 0Sep 2021 45 65

864 864 214179 0WY 2021 1036 975

62 6026.7762 9632261307 0Oct 2021 50 7064 6027.0364 9832361303 0Nov 2021 48 78

101 6026.29101 12832081292 0Dec 2021 33 74101 6025.76101 12831881282 0Jan 2022 40 8392 6025.4592 11631771282 0Feb 2022 44 8282 6026.1382 16132021293 0Mar 2022 95 11179 6026.9479 28732321305 0Apr 2022 125 11678 6029.0578 59233121338 0May 2022 246 169

180 6030.75180 578337813611 0Jun 2022 360 25865 6032.6765 138345313914 0Jul 2022 184 15890 6031.9990 114342613813 0Aug 2022 80 75

100 6030.86100 114338213611 0Sep 2022 50 661095 1095 255381 0WY 2022 1356 1339

79 6030.4679 11233671357 0Oct 2022 54 71



Taylor Park Reservoir



(Ft)

LiveStorage

(1000 Ac-Ft)

TotalRelease

(1000 Ac-Ft)

RegulatedInflow

(1000 Ac-Ft)Date* Nov 2019 5 6 9313.66 76H Dec 2019 5 6 9313.35 75I Jan 2020 4 6 9312.52 74S Feb 2020 4 6 9311.72 73T Mar 2020 5 6 9310.81 71O Apr 2020 7 6 9311.67 73R May 2020 24 10 9319.44 86I Jun 2020 22 16 9322.93 92C Jul 2020 8 17 9317.91 83A Aug 2020 4 14 9311.83 73L Sep 2020 6 9 9309.62 69

WY 2020 101 113

* Oct 2020 4 5 9308.95 68

Nov 2020 4 5 9308.15 67Dec 2020 4 5 9307.04 65Jan 2021 3 5 9305.71 63Feb 2021 2 5 9304.08 61Mar 2021 3 5 9302.55 59Apr 2021 6 10 9299.66 55

May 2021 20 14 9303.94 61Jun 2021 32 20 9311.74 73Jul 2021 14 24 9305.64 63

Aug 2021 7 19 9297.00 51Sep 2021 5 18 9286.13 39WY 2021 104 135

Oct 2021 5 12 9279.60 32Nov 2021 5 5 9279.04 32Dec 2021 5 5 9278.46 31Jan 2022 4 5 9277.41 31Feb 2022 4 5 9276.46 30Mar 2022 5 5 9275.61 29Apr 2022 9 10 9274.38 28

May 2022 27 12 9290.16 43Jun 2022 42 16 9309.49 69Jul 2022 16 16 9309.30 69

Aug 2022 9 16 9304.70 62Sep 2022 7 16 9298.46 53WY 2022 137 123

Oct 2022 7 12 9294.28 48



Blue Mesa Reservoir



(Ft)

LiveStorage

(1000 Ac-Ft)

TotalRelease

(1000 Ac-Ft)

RegulatedInflow

(1000 Ac-Ft)Date

EvapLosses

(1000 Ac-Ft)

PowerRelease

(1000 Ac-Ft)

BypassRelease

(1000 Ac-Ft)

UnRegInflow

(1000 Ac-Ft)* Nov 2019 32 72 7497.63 6420 54 031H Dec 2019 30 85 7490.79 5880 70 030I Jan 2020 28 61 7486.45 5540 44 026S Feb 2020 25 41 7484.20 5370 30 023T Mar 2020 36 38 7483.85 5340 38 034O Apr 2020 49 73 7480.49 5101 73 050R May 2020 140 99 7485.88 5501 82 17153I Jun 2020 131 85 7491.64 5941 83 3139C Jul 2020 55 92 7486.61 5551 92 146A Aug 2020 36 95 7478.53 4951 95 026L Sep 2020 26 82 7470.42 4391 80 223

WY 2020 620 9098 805 26608

* Oct 2020 21 66 7463.47 3930 66 020

Nov 2020 21 20 7463.66 3940 20 020Dec 2020 21 21 7463.64 3940 21 019Jan 2021 19 21 7463.37 3920 21 017Feb 2021 17 17 7463.36 3920 17 015Mar 2021 27 19 7464.56 4000 0 1925Apr 2021 54 40 7466.66 4141 0 4050

May 2021 139 45 7480.10 5071 6 39145Jun 2021 183 91 7492.07 5981 91 0195Jul 2021 85 76 7492.94 6041 76 075

Aug 2021 56 80 7489.71 5791 80 044Sep 2021 38 70 7485.29 5451 70 025WY 2021 681 5678 469 98650

Oct 2021 36 68 7480.90 5130 68 029Nov 2021 28 14 7482.84 5270 14 028Dec 2021 27 15 7484.41 5390 15 027Jan 2022 26 15 7485.76 5490 15 025Feb 2022 24 14 7487.05 5590 14 023Mar 2022 38 17 7489.78 5800 17 037Apr 2022 79 38 7494.87 6201 38 078

May 2022 184 213 7491.09 5901 207 6199Jun 2022 236 40 7514.38 7841 40 0262Jul 2022 99 80 7516.24 8012 80 098

Aug 2022 66 83 7514.21 7831 83 059Sep 2022 46 81 7510.10 7471 81 038WY 2022 888 6789 672 6902

Oct 2022 43 81 7505.59 7081 81 038



Morrow Point Reservoir



(Ft)

TotalRelease

(1000 Ac-Ft)

Blue MesaRelease

(1000 Ac-Ft)Date

SideInflow

(1000 Ac-Ft)

PowerRelease

(1000 Ac-Ft)

BypassRelease

(1000 Ac-Ft)

UnregInflow

(1000 Ac-Ft)

LiveStorage

(1000 Ac-Ft)

TotalInflow

(1000 Ac-Ft)72 1087148.857171172 0Nov 2019* 3185 1087149.108585185 0Dec 2019H 3061 1077147.476363161 0Jan 2020I 2741 1077147.884141041 0Feb 2020S 2340 1067145.654242238 0Mar 2020T 3677 1077147.107676473 0Apr 2020O 54

109 1077146.721091091099 0May 2020R 16289 1117152.138585485 0Jun 2020I 14293 1117152.069393192 0Jul 2020C 4796 1107151.269795195 0Aug 2020A 2783 1097149.878480182 0Sep 2020L 23

933 93391724909 0WY 2020 632

67 1107151.066666166 0Oct 2020* 21

22 1077147.942424220 0Nov 2020 2222 1077147.942222121 0Dec 2020 2022 1077147.942222121 0Jan 2021 1819 1077147.941919217 0Feb 2021 1722 1077147.942222319 0Mar 2021 2850 1077147.9450501040 0Apr 2021 6060 1077147.9460601545 0May 2021 160

101 1077147.941011011091 0Jun 2021 20581 1077147.948181576 0Jul 2021 8082 1077147.948282280 0Aug 2021 4673 1077147.947373370 0Sep 2021 28

622 62262255567 0WY 2021 705

71 1077147.947171368 0Oct 2021 3216 1077147.941616214 0Nov 2021 3017 1077147.941717215 0Dec 2021 2818 1077147.941818215 0Jan 2022 2716 1077147.941616214 0Feb 2022 2520 1077147.942020417 0Mar 2022 4149 1077147.9449491138 0Apr 2022 89

234 1077147.9423423421213 0May 2022 22058 1077147.9458581840 0Jun 2022 28084 1077147.948484480 0Jul 2022 10286 1077147.948585283 0Aug 2022 6284 1077147.948383281 0Sep 2022 40

750 74974972678 0WY 2022 975

84 1077147.948484381 0Oct 2022 40



Crystal Reservoir



(Ft)

LiveStorage

(1000 Ac-Ft)

TotalRelease

(1000 Ac-Ft)

MorrowRelease

(1000 Ac-Ft)Date

TotalInflow

(1000 Ac-Ft)

BypassRelease

(1000 Ac-Ft)

Below TunnelFlow

(1000 Ac-Ft)

UnregInflow

(1000 Ac-Ft)

TunnelFlow

(1000 Ac-Ft)

PowerRelease

(1000 Ac-Ft)

SideInflow

(1000 Ac-Ft)76 26746.9076 72157571 0Nov 2019* 35 489 06746.4089 86158985 0Dec 2019H 35 458 16745.6167 64156763 9Jan 2020I 31 424 16748.7143 43164441 19Feb 2020S 26 345 116754.3846 33174742 1Mar 2020T 42 681 556754.3781 26178176 0Apr 2020O 59 599 656754.46121 5417121109 14May 2020R 174 1292 626747.3493 32159185 0Jun 2020I 148 694 656750.2094 32169593 0Jul 2020C 48 297 646750.0997 35169797 0Aug 2020A 27 159 596749.9885 28168584 27Sep 2020L 25 1

905 447984 535984933 72WY 2020 683 51

49 426751.3967 25166866 19Oct 2020* 23 2

27 06749.6327 27162624 0Nov 2020 24 225 06749.6325 25162522 0Dec 2020 23 325 06749.6325 25162522 0Jan 2021 21 322 06749.6322 22162219 0Feb 2021 20 328 56749.6328 23162822 0Mar 2021 34 660 426749.6360 18166050 0Apr 2021 70 1080 626749.6380 18168060 0May 2021 180 20

126 616749.63126 6516126101 0Jun 2021 230 2586 656749.6386 21168681 0Jul 2021 85 586 656749.6386 21168682 0Aug 2021 50 452 556749.6380 25168073 28Sep 2021 35 7

664 397711 314712622 47WY 2021 795 90

78 306749.6378 48167871 0Oct 2021 39 721 06749.6321 21162116 0Nov 2021 35 522 06749.6322 22162217 0Dec 2021 33 522 06749.6322 22162218 0Jan 2022 31 419 06749.6319 19161916 0Feb 2022 29 426 56749.6326 21162620 0Mar 2022 47 660 426749.6360 18166049 0Apr 2022 100 12

136 626749.63260 19816260234 124May 2022 247 2789 616749.6389 28168958 0Jun 2022 311 3292 656749.6392 27169284 0Jul 2022 110 992 656749.6392 27169285 0Aug 2022 68 748 556749.6389 34168983 41Sep 2022 46 6

705 385871 486871749 165WY 2022 1097 122

90 556749.6390 35169084 0Oct 2022 47 6



Vallecito Reservoir



(Ft)

LiveStorage

(1000 Ac-Ft)

TotalRelease

(1000 Ac-Ft)

RegulatedInflow

(1000 Ac-Ft)Date* Nov 2019 4 2 7644.14 73H Dec 2019 4 2 7645.07 75I Jan 2020 5 2 7646.26 78S Feb 2020 4 2 7647.01 80T Mar 2020 6 2 7648.55 84O Apr 2020 16 4 7653.32 95R May 2020 66 37 7664.35 124I Jun 2020 38 48 7660.61 114C Jul 2020 11 38 7649.57 86A Aug 2020 5 36 7635.21 54L Sep 2020 4 28 7620.77 30

WY 2020 167 213

* Oct 2020 3 2 7620.99 30

Nov 2020 3 1 7622.03 32Dec 2020 3 0 7623.52 34Jan 2021 3 0 7624.88 36Feb 2021 2 0 7625.89 38Mar 2021 3 0 7627.41 41Apr 2021 10 0 7632.72 50

May 2021 40 29 7638.19 61Jun 2021 50 40 7642.58 70Jul 2021 20 39 7633.05 51

Aug 2021 14 36 7619.35 28Sep 2021 13 28 7605.00 13WY 2021 163 177

Oct 2021 11 15 7600.12 9Nov 2021 8 2 7607.37 15Dec 2021 7 2 7612.42 20Jan 2022 6 2 7615.78 24Feb 2022 5 2 7618.59 27Mar 2022 9 2 7623.84 35Apr 2022 23 2 7635.72 56

May 2022 69 31 7652.46 93Jun 2022 68 43 7662.00 118Jul 2022 24 42 7655.06 100

Aug 2022 17 38 7646.35 79Sep 2022 18 29 7641.25 67WY 2022 266 209

Oct 2022 14 17 7639.67 64



Navajo Reservoir



(Ft)

LiveStorage

(1000 Ac-Ft)

TotalRelease

(1000 Ac-Ft)

AzoteaTunnel Div

(1000 Ac-Ft)Date

RegInflow

(1000 Ac-Ft)

EvapLosses

(1000 Ac-Ft)

NIIPDiversion

(1000 Ac-Ft)

Mod UnregInflow

(1000 Ac-Ft)

FarmingtonFlow

(1000 Ac-Ft)13 13486060.0425 4601015Nov 2019*15 13266058.2536 5911017Dec 2019H14 13086056.8131 4411016Jan 2020I15 12956055.7624 3731017Feb 2020S30 12926055.5726 3552235Mar 2020T60 12976055.9229 372521180Apr 2020O

142 13676061.4832 12237427199May 2020R64 13546060.4931 96414865Jun 2020I29 12856054.9947 5947413Jul 2020C16 12026048.0152 494430-15Aug 2020A17 11496043.3247 472120-7Sep 2020L

429 411 6782302748431WY 2020

7 11036039.0943 459107Oct 2020*

12 10916037.9724 3201014Nov 202011 10816037.0120 2801013Dec 202010 10686035.7523 3001012Jan 202114 10646035.4017 2401016Feb 202141 10796036.8019 3061245Mar 202163 10976038.5721 47222780Apr 2021

134 11746045.4918 10337320165May 2021127 12256049.9818 11353418155Jun 202158 11936047.2129 71574140Jul 202153 11666044.8229 57483132Aug 202147 11596044.2225 48262133Sep 2021

577 286 6282582450612WY 2021

41 11716045.2318 3892138Oct 202120 11726045.3918 3401026Nov 202120 11736045.4818 3401025Dec 202118 11726045.3718 3201022Jan 202226 11816046.1317 2901030Feb 202279 12356050.7618 4161996Mar 2022113 13066056.6518 6822218152Apr 2022193 14336066.5326 16637435266May 2022160 15066071.8030 18254527212Jun 202264 14766069.6731 90585248Jul 202249 14426067.1631 64484230Aug 202251 14056064.4458 88263241Sep 2022

834 300 8692602896987WY 2022

47 14106064.8031 5492043Oct 2022



Lake Powell



(Ft)

BankStorage

(1000 Ac-Ft)

TotalRelease

(1000 Ac-Ft)

RegulatedInflow

(1000 Ac-Ft)Date

EvapLosses

(1000 Ac-Ft)

BypassRelease

(1000 Ac-Ft)

LeesFerry Gage(1000 Ac-Ft)

UnregInflow

(1000 Ac-Ft)

EOMStorage

(1000 Ac-Ft)

PowerPlantRelease

(1000 Ac-Ft)626 128553611.23626 630508234466 0Nov 2019* 404750 126043608.74750 756506227506 0Dec 2019H 353760 122813605.48760 76850368419 0Jan 2020I 277675 120113602.72675 68750159393 0Feb 2020S 288700 118183600.71700 719499915505 0Mar 2020T 475630 116853599.32630 652498923510 0Apr 2020O 475629 122393605.05629 6515033271253 0May 2020R 1541650 127933610.62650 6635077451293 0Jun 2020I 1453750 123573606.25750 774504253332 0Jul 2020C 290833 117233599.72833 865499251200 0Aug 2020A -20602 113713595.98602 628496346267 0Sep 2020L 47

8230 8230 84253726543 0WY 2020 5848

640 109773591.72640 671493231246 0Oct 2020* 91

640 106133587.69640 642490329276 0Nov 2020 250720 101943582.95720 725486923291 0Dec 2020 250760 97443577.70760 77148337281 0Jan 2021 240680 93803573.35680 69048047294 0Feb 2021 270710 90893569.77710 723478112406 0Mar 2021 450640 89573568.14640 656477018516 0Apr 2021 600630 93583573.08630 6464802211085 0May 2021 1350660 101963582.97660 6774869361601 0Jun 2021 1900750 100573581.37750 774485844644 0Jul 2021 700800 97143577.34800 820483143472 0Aug 2021 365604 95203575.04604 617481539434 0Sep 2021 325

8234 8234 84133106545 0WY 2021 6791

480 94813574.57480 489481227465 0Oct 2021 424500 93923573.49500 502480526430 0Nov 2021 437600 92013571.16600 605479021414 0Dec 2021 364720 89033567.45720 73147666404 0Jan 2022 355640 86983564.86640 65047506425 0Feb 2022 399675 85783563.32675 689474011556 0Mar 2022 653600 87153565.07600 616475117765 0Apr 2022 945600 98893579.41600 6164845221890 0May 2022 2213630 112063594.21630 6474950382090 0Jun 2022 2595710 112473594.65710 734495348803 0Jul 2022 898760 109893591.85760 780493348530 0Aug 2022 445565 109113590.99565 579492744524 0Sep 2022 386

7480 7480 76383149296 0WY 2022 10114

640 107893589.66640 640491730539 0Oct 2022 474



Hoover Dam - Lake Mead



(Ft)

BankStorage

(1000 Ac-Ft)

SNWPUse

(1000 Ac-Ft)

Side InflowGlen to Hoover

(1000 Ac-Ft)Date

EvapLosses

(1000 Ac-Ft)

TotalRelease

(1000 Ac-Ft)

TotalRelease

(1000 CFS)

GlenRelease

(1000 Ac-Ft)

EOMStorage

(1000 Ac-Ft)

DownstreamRequirements(1000 Ac-Ft)

553 103331083.85575 6729.740116626Nov 2019* 13214 108991090.49220 7083.637118750Dec 2019H 7404 112651094.68405 7326.63175760Jan 2020I 9550 114051096.27557 7419.72968675Feb 2020S 9568 116101098.59593 7559.633156700Mar 2020T 12847 114151096.39862 74214.54183630Apr 2020O 181054 109711091.321057 71317.24633629May 2020R 32973 106051087.07973 68916.45519650Jun 2020I 31901 103981084.63902 67614.76835750Jul 2020C 36845 103491084.04847 67313.87269833Aug 2020A 36645 102791083.21646 66810.95957602Sep 2020L 29817582635538638230WY 2020 256

729 101671081.88730 66111.94336640Oct 2020* 23

681 101451081.61681 65911.44368640Nov 2020 9457 104141084.81457 6777.43764720Dec 2020 4518 106911088.07518 6958.43195760Jan 2021 11604 108231089.60604 70310.928101680Feb 2021 9957 106321087.39957 69115.63291710Mar 2021 15991 103151083.65991 67116.73969640Apr 2021 17953 99981079.84953 65015.54449630May 2021 20921 97041076.26921 63115.55328660Jun 2021 28828 96071075.07828 62413.56573750Jul 2021 33772 96221075.26772 62512.66991800Aug 2021 34700 95201074.00700 61911.85775604Sep 2021 30911091115398408234WY 2021 231

515 94961073.70515 6178.44175480Oct 2021 25621 93931072.43621 61110.44168500Nov 2021 15529 94781073.47529 6168.63564600Dec 2021 10534 97041076.26534 6318.72995720Jan 2022 11536 98631078.21536 6419.727101640Feb 2022 9927 96691075.84927 62815.13091675Mar 2022 15957 93481071.87957 60816.13769600Apr 2022 17939 90171067.69939 58615.34249600May 2022 21936 86831063.40936 56415.75028630Jun 2022 29828 85511061.68828 55613.56173710Jul 2022 33776 85281061.37776 55412.66591760Aug 2022 34683 84081059.80683 54611.55375565Sep 2022 31878187815138787480WY 2022 250

478 85001061.01478 5527.8390640Oct 2022 26



Davis Dam - Lake Mohave



(Ft)

EOMStorage

(1000 Ac-Ft)

TotalRelease

(1000 Ac-Ft)

SideInflow

(1000 Ac-Ft)Date

EvapLosses

(1000 Ac-Ft)

PowerRelease

(1000 Ac-Ft)

SpillRelease

(1000 Ac-Ft)

HooverRelease

(1000 Ac-Ft)

TotalRelease

(1000 CFS)7.7 1675642.13457045711-4575Nov 2019*4.0 1638640.77248024890220Dec 2019H6.2 1653641.323800380100405Jan 2020I9.1 1674642.10523052310-3557Feb 2020S8.9 1708643.325490549133593Mar 2020T

14.5 1696642.918610861174862Apr 2020O16.7 1703643.1710250102522-21057May 2020R15.7 1708643.34933093225-10973Jun 2020I14.4 1696642.91884088425-4902Jul 2020C13.4 1688642.61822082223-10847Aug 2020A13.3 1525636.507910791181646Sep 2020L

806308063198-518263WY 2020

11.8 1503635.65725072515-12730Oct 2020*

9.9 1564638.00590059010-19681Nov 20206.7 1591639.0140904099-12457Dec 20206.7 1666641.80412041210-21518Jan 2021

10.5 1666641.80584058410-10604Feb 202114.6 1700643.05898089813-12957Mar 202116.2 1699643.00964096417-12991Apr 202115.0 1699643.00921092122-10953May 202114.8 1699643.00881088125-15921Jun 202113.3 1671642.00819081925-12828Jul 202112.0 1671642.00737073723-12772Aug 202112.1 1618640.01721072118-15700Sep 2021

866008660197-1619111WY 2021

10.9 1434633.00673067315-10515Oct 20219.1 1486635.00541054110-19621Nov 20216.3 1604639.5138903899-12529Dec 20217.2 1666641.80441044110-21534Jan 20229.3 1666641.80516051610-10536Feb 2022

14.1 1700643.05868086813-12927Mar 202215.6 1699643.00929092917-12957Apr 202214.7 1699643.00907090722-10939May 202215.0 1699643.00895089525-15936Jun 202213.3 1671642.00819081925-12828Jul 202212.1 1671642.00742074223-12776Aug 202211.8 1618640.01704070418-15683Sep 2022

842408424197-1598781WY 2022

10.5 1434633.006460646150478Oct 2022



Parker Dam - Lake Havasu



(Ft)

EOMStorage

(1000 Ac-Ft)

TotalRelease

(1000 Ac-Ft)

EvapLosses

(1000 Ac-Ft)Date

CAPDiversion

(1000 Ac-Ft)

MWDDiversion

(1000 Ac-Ft)

Flow ToMexico

(1000 CFS)

DavisRelease

(1000 Ac-Ft)

Flow ToMexico

(1000 Ac-Ft)

TotalRelease

(1000 CFS)

SideInflow

(1000 Ac-Ft)5.0 118449.10300 2.06011259 16Nov 2019* 457 222.6 109448.16159 1.8583727 46Dec 2019H 248 205.1 106446.50311 1.7552756 17Jan 2020I 380 16.9 138448.15400 2.4583758 3Feb 2020S 523 -37.4 198446.04455 3.2543949 43Mar 2020T 549 15

10.8 171447.41642 2.956914811 55Apr 2020O 861 2912.2 132447.51752 2.157118013 61May 2020R 1025 -711.8 142447.85700 2.457710315 94Jun 2020I 933 -511.4 156447.58700 2.55726917 95Jul 2020C 884 210.6 131448.03649 2.15816117 79Aug 2020A 822 19.1 116446.61542 2.055416415 92Sep 2020L 791 5

15856041 1319139 631WY 2020 8063 99

7.3 71447.77448 1.257616412 94Oct 2020* 725 23

6.0 91447.50359 1.55711439 96Nov 2020 590 164.0 89446.50249 1.4552917 99Dec 2020 409 224.3 102446.50264 1.7552606 97Jan 2021 412 207.2 127446.50401 2.35521398 40Feb 2021 584 10

10.5 168446.70648 2.75551489 86Mar 2021 898 512.0 154448.70712 2.659314411 57Apr 2021 964 811.3 127448.70693 2.159315413 64May 2021 921 1511.9 140448.70710 2.45939016 63Jun 2021 881 1111.4 151448.00703 2.55805417 64Jul 2021 819 1810.1 116447.50618 1.95715417 64Aug 2021 737 178.9 112447.50530 1.957012015 63Sep 2021 721 17

14506335 1361139 888WY 2021 8660 182

7.7 73447.50472 1.257114312 64Oct 2021 673 245.7 91447.50340 1.55701419 63Nov 2021 541 163.9 96446.50239 1.65521057 75Dec 2021 389 224.3 99446.50262 1.65521006 88Jan 2022 441 207.2 123446.50402 2.2552948 16Feb 2022 516 10

10.5 162446.70646 2.65551179 88Mar 2022 868 512.0 148448.70714 2.559311711 47Apr 2022 929 811.5 124448.70706 2.059312913 62May 2022 907 1512.2 138448.70724 2.35939416 60Jun 2022 895 1111.4 148448.00700 2.45805917 62Jul 2022 819 1810.2 114447.50625 1.95715317 62Aug 2022 742 178.9 110447.50531 1.957010615 60Sep 2022 704 17

14276358 1256139 748WY 2022 8424 183

7.5 71447.50460 1.257110512 62Oct 2022 646 0



Hoover Dam - Lake Mead



(Ft)

HooverGross Energy

MKWH

HooverStatic Head

(Ft)

PowerRelease

(1000 CFS)Date

Percent ofUnits

Available KWH/AF

Change InStorage

(1000 Ac-Ft)

PowerRelease

(1000 Ac-Ft)

EOMStorage

(1000 Ac-Ft)

Hoover GenCapacity

MW1192.0103331083.85 386.0221.9104 759.7575Nov 2019* 438.74838.0108991090.49 371.481.6567 523.6220Dec 2019H 448.421152.1112651094.68 395.1160.0366 706.6405Jan 2020I 451.06962.0114051096.27 402.6224.2140 579.7557Feb 2020S 452.311136.0116101098.59 399.6237.0205 699.6593Mar 2020T 450.961138.0114151096.39 407.4351.1-194 6914.5862Apr 2020O 447.371385.0109711091.32 401.5424.4-444 8517.21057May 2020R 443.681511.0106051087.07 393.9383.4-366 9416.4973Jun 2020I 438.871502.1103981084.63 389.9351.6-207 9414.7902Jul 2020C 437.221502.1103491084.04 388.2328.8-50 9413.8847Aug 2020A 438.651264.0102791083.21 387.6250.3-70 8110.9646Sep 2020L 441.07

3256.38263WY 2020

1154.0101671081.88 390.2284.7-111 7411.9730Oct 2020* 439.76

1303.0101451081.61 387.4263.7-23 8511.4681Nov 2020 433.901363.1104141084.81 384.4175.7269 877.4457Dec 2020 434.041291.1106911088.07 392.7203.5277 808.4518Jan 2021 436.691104.0108231089.60 393.1237.5132 6710.9604Feb 2021 439.581133.1106321087.39 402.9385.7-190 7015.6957Mar 2021 438.561109.0103151083.65 398.3394.8-317 7016.7991Apr 2021 435.211377.099981079.84 389.6371.1-318 8815.5953May 2021 429.561536.097041076.26 382.8352.5-294 10015.5921Jun 2021 424.591536.096071075.07 383.0317.3-97 10013.5828Jul 2021 422.561553.096221075.26 379.9293.215 10012.6772Aug 2021 422.381553.095201074.00 377.0263.8-102 10011.8700Sep 2021 422.50

3543.39111WY 2021

1398.194961073.70 382.2196.7-25 918.4515Oct 2021 424.96797.093931072.43 393.8244.6-102 5210.4621Nov 2021 430.65

1009.094781073.47 376.6199.184 658.6529Dec 2021 427.02913.097041076.26 379.2202.4226 588.7534Jan 2022 427.43

1026.098631078.21 384.0205.9159 659.7536Feb 2022 428.341332.096691075.84 385.2357.1-194 8515.1927Mar 2022 425.561062.493481071.87 385.5368.8-321 7016.1957Apr 2022 423.611312.790171067.69 378.0354.9-331 8815.3939May 2022 417.691472.486831063.40 371.9348.0-334 10015.7936Jun 2022 412.201462.885511061.68 370.9307.3-132 10013.5828Jul 2022 409.561461.085281061.37 367.8285.6-24 10012.6776Aug 2022 408.881452.184081059.80 363.6248.5-120 10011.5683Sep 2022 408.59

3318.88781WY 2022

1327.985001061.01 368.5176.092 917.8478Oct 2022 411.63



Davis Dam - Lake Mohave



(Ft)

DavisGross Energy

MKWH

DavisStatic Head

(Ft)

PowerRelease

(1000 CFS)Date

Percent ofUnits

Available KWH/AF

Change InStorage

(1000 Ac-Ft)

PowerRelease

(1000 Ac-Ft)

EOMStorage

(1000 Ac-Ft)

Davis GenCapacity

MW153.01675 121.755.6103 607.7457Nov 2019* 143.18642.13156.31638 123.330.5-37 614.0248Dec 2019H 141.96640.77156.31653 131.349.915 616.2380Jan 2020I 141.95641.32156.51674 131.668.921 619.1523Feb 2020S 139.59642.10164.51708 122.667.433 658.9549Mar 2020T 142.51643.32253.31696 127.4109.7-11 9914.5861Apr 2020O 137.62642.91255.01703 125.3128.57 10016.71025May 2020R 140.19643.17255.01708 125.8117.35 10015.7932Jun 2020I 140.36643.34255.01696 126.7112.0-12 10014.4884Jul 2020C 139.88642.91255.01688 126.5104.0-8 10013.4822Aug 2020A 141.10642.61255.01525 123.998.1-163 10013.3791Sep 2020L 133.32636.50

1015.18063WY 2020

215.51503 119.186.4-22 8511.8725Oct 2020* 134.17635.65

168.31564 121.671.862 669.9590Nov 2020 135.01638.00153.01591 124.450.927 606.7409Dec 2020 138.12639.01153.01666 126.152.075 606.7412Jan 2021 139.99641.80156.61666 125.973.50 6110.5584Feb 2021 139.73641.80205.71700 125.1112.334 8114.6898Mar 2021 138.81643.05214.21699 125.1120.6-1 8416.2964Apr 2021 138.87643.00255.01699 125.5115.50 10015.0921May 2021 139.26643.00255.01699 125.5110.50 10014.8881Jun 2021 139.32643.00255.01671 125.5102.8-27 10013.3819Jul 2021 139.35642.00255.01671 125.592.50 10012.0737Aug 2021 139.35642.00255.01618 124.689.8-54 10012.1721Sep 2021 138.31640.01

1078.68660WY 2021

227.01434 121.081.4-183 8910.9673Oct 2021 134.27633.00159.81486 119.464.651 639.1541Nov 2021 132.52635.00154.71604 123.448.0118 616.3389Dec 2021 137.02639.51156.31666 126.255.762 617.2441Jan 2022 140.02641.80156.61666 126.365.20 619.3516Feb 2022 140.24641.80194.11700 125.2108.734 7614.1868Mar 2022 138.99643.05249.91699 125.3116.4-1 9815.6929Apr 2022 139.06643.00255.01699 125.5113.80 10014.7907May 2022 139.34643.00255.01699 125.4112.30 10015.0895Jun 2022 139.24643.00255.01671 125.5102.8-27 10013.3819Jul 2022 139.35642.00255.01671 125.593.10 10012.1742Aug 2022 139.32642.00255.01618 124.787.8-54 10011.8704Sep 2022 138.42640.01

1049.88424WY 2022

227.01434 121.178.3-183 8910.5646Oct 2022 134.44633.00



Parker Dam - Lake Havasu



(Ft)

ParkerGross Energy

MKWH

ParkerStatic Head

(Ft)

PowerRelease

(1000 CFS)Date

Percent ofUnits

Available KWH/AF

Change InStorage

(1000 Ac-Ft)

PowerRelease

(1000 Ac-Ft)

EOMStorage

(1000 Ac-Ft)

Parker GenCapacity

MW92.0601449.10 67.220.225 775.0300Nov 2019* 84.29

100.6583448.16 59.19.4-18 842.6159Dec 2019H 81.6897.7552446.50 70.722.0-31 815.1311Jan 2020I 80.4797.2583448.15 70.028.031 816.9400Feb 2020S 82.44

120.0543446.04 65.930.0-39 1007.4455Mar 2020T 78.08120.0569447.41 69.244.425 10010.8642Apr 2020O 81.56120.0571447.51 68.951.82 10012.2752May 2020R 77.41120.0577447.85 69.748.86 10011.8700Jun 2020I 79.56120.0572447.58 69.348.6-5 10011.4700Jul 2020C 81.49120.0581448.03 69.345.08 10010.6649Aug 2020A 80.50120.0554446.61 69.637.7-27 1009.1542Sep 2020L 78.70

416.06041WY 2020

90.0576447.77 68.930.922 757.3448Oct 2020* 81.85

90.0571447.50 65.223.4-5 756.0359Nov 2020 76.42116.1552446.50 62.115.4-19 974.0249Dec 2020 74.5694.8552446.50 62.816.60 794.3264Jan 2021 75.0792.1552446.50 65.026.00 777.2401Feb 2021 75.21

120.0555446.70 64.842.04 10010.5648Mar 2021 74.01120.0593448.70 65.846.938 10012.0712Apr 2021 75.08120.0593448.70 66.546.00 10011.3693May 2021 76.05120.0593448.70 66.647.30 10011.9710Jun 2021 76.05120.0580448.00 66.246.6-13 10011.4703Jul 2021 75.71120.0571447.50 65.540.5-9 10010.1618Aug 2021 75.13120.0570447.50 65.134.50 1008.9530Sep 2021 74.89

416.06335WY 2021

92.9571447.50 65.831.00 777.7472Oct 2021 76.1492.0570447.50 64.822.00 775.7340Nov 2021 76.19110.3552446.50 62.014.8-19 923.9239Dec 2021 74.8293.9552446.50 62.816.50 784.3262Jan 2022 75.1293.2552446.50 65.026.10 787.2402Feb 2022 75.15

120.0555446.70 64.841.84 10010.5646Mar 2022 74.01120.0593448.70 65.847.038 10012.0714Apr 2022 75.08120.0593448.70 66.546.90 10011.5706May 2022 76.05120.0593448.70 66.648.20 10012.2724Jun 2022 76.05120.0580448.00 66.246.3-13 10011.4700Jul 2022 75.71120.0571447.50 65.541.0-9 10010.2625Aug 2022 75.13120.0570447.50 65.134.50 1008.9531Sep 2022 74.89

416.26358WY 2022

91.9571447.50 65.830.30 777.5460Oct 2022 76.19



Upper Basin Power


FontenelleReservoir

1000 MWHR

CrystalReservoir

1000 MWHR

GlenCanyon

1000 MWHRDate

FlamingGorge

1000 MWHR

BlueMesa

1000 MWHR

MorrowPoint

1000 MWHR280 14 531 22 25Nov 2019*336 17 551 26 30Dec 2019H338 11 551 18 22Jan 2020I296 4 447 12 14Feb 2020S307 7 446 11 13Mar 2020T

1838 71 28258 115 131Winter 2020276 16 544 21 25Apr 2020O276 19 737 23 37May 2020R290 18 858 24 28Jun 2020I335 18 935 27 32Jul 2020C367 19 743 28 32Aug 2020A262 11 237 23 28Sep 2020L

1806 102 37254 146 182Summer 2020277 9 024 18 22Oct 2020*262 5 418 5 9Nov 2020291 4 421 6 8Dec 2020304 4 321 6 8Jan 2021269 4 319 5 7Feb 2021278 5 322 0 8Mar 2021

1681 31 17124 39 61Winter 2021250 10 321 0 18Apr 2021247 14 424 2 21May 2021263 21 742 26 36Jun 2021301 15 822 23 29Jul 2021319 15 531 24 29Aug 2021240 9 230 21 26Sep 2021

1619 83 28170 95 159Summer 2021190 13 521 20 25Oct 2021198 4 522 4 6Nov 2021236 4 534 4 6Dec 2021280 4 534 4 6Jan 2022248 3 431 4 6Feb 2022260 4 428 5 7Mar 2022

1412 32 27169 41 56Winter 2022231 10 427 11 17Apr 2022235 23 526 61 83May 2022255 15 761 12 21Jun 2022292 16 822 25 30Jul 2022312 16 531 26 30Aug 2022231 8 534 25 30Sep 2022

1324 80 30167 136 181Summer 2022262 15 527 25 30Oct 2022



Flood Control Criteria - Beginning of Month Conditions


NavajoKAFDate

FlamingGorgeKAF

BlueMesaKAF

LakePowell

KAF

Upper BasinTotalKAF

LakeMeadKAF

TotalKAF

FlamingGorgeKAF

BlueMesaKAF

NavajoKAF

LakePowell

KAF

Tot or MaxAllowKAF

LakeMeadKAF

TotalKAF

BOM SpaceRequired

KAF

MeadSched Rel

KAF

MeadFC Rel

KAF

SysContMAF

* * * * P R E D I C T E D S P A C E * * * * * * * * C R E D I T A B L E S P A C E* * * *685 437 593 13345 15060 17210 32269 685 437 593 1715 13345 17210 32269 3810 681 0 28.0Nov 2020703 435 605 13709 15452 17232 32684 703 435 605 1743 13709 17232 32684 4580 457 0 27.8Dec 2020736 435 615 14128 15915 16963 32878 736 435 615 1787 14128 16963 32878 5350 518 0 27.6Jan 2021

* * * * E F F E C T I V E S P A C E * * * *736 435 615 14128 15915 16963 32878 324 213 302 840 14128 16963 31931 5350 518 0 27.6Jan 2021765 437 628 14578 16409 16686 33095 351 217 315 882 14578 16686 32146 1500 604 0 27.4Feb 2021788 437 632 14942 16799 16554 33353 371 219 318 908 14942 16554 32404 1500 957 0 27.0Mar 2021774 430 617 15233 17054 16745 33799 352 213 296 862 15233 16745 32839 1500 991 0 26.6Apr 2021738 416 599 15365 17117 17062 34178 309 203 254 766 15365 17062 33192 1500 953 0 26.9May 2021672 323 522 14964 16481 17379 33860 234 103 138 475 14964 17379 32818 1500 921 0 27.8Jun 2021555 232 471 14126 15383 17673 33056 105 -1 29 132 14126 17673 31931 1500 828 0 27.5Jul 2021

* * * * C R E D I T A B L E S P A C E* * * *468 225 503 14265 15461 17770 33231 468 225 503 1196 14265 17770 33231 1500 772 0 27.1Aug 2021507 250 530 14608 15896 17755 33651 507 250 530 1288 14608 17755 33651 2270 700 0 26.6Sep 2021563 284 537 14802 16186 17857 34043 563 284 537 1384 14802 17857 34043 3040 515 0 26.3Oct 2021583 317 525 14841 16266 17881 34148 583 317 525 1425 14841 17881 34148 3810 621 0 26.2Nov 2021603 303 524 14930 16359 17984 34343 603 303 524 1429 14930 17984 34343 4580 529 0 26.1Dec 2021673 291 523 15121 16607 17899 34507 673 291 523 1486 15121 17899 34507 5350 534 0 26.1Jan 2022

* * * * E F F E C T I V E S P A C E * * * *673 291 523 15121 16607 17899 34507 417 291 496 1205 15121 17899 34225 5350 534 0 26.1Jan 2022736 281 524 15419 16960 17673 34633 479 281 497 1256 15419 17673 34349 1500 536 0 26.0Feb 2022786 271 515 15624 17196 17514 34710 527 271 488 1285 15624 17514 34423 1500 927 0 25.8Mar 2022778 250 461 15744 17233 17708 34941 514 250 427 1190 15744 17708 34642 1500 957 0 25.8Apr 2022738 210 390 15607 16946 18029 34974 468 210 331 1009 15607 18029 34645 1500 939 0 26.9May 2022582 240 263 14433 15518 18360 33878 300 240 163 703 14433 18360 33496 1500 936 0 28.3Jun 2022418 45 190 13116 13769 18694 32464 119 18 33 170 13116 18694 31981 1500 828 0 28.3Jul 2022

* * * * C R E D I T A B L E S P A C E* * * *318 28 220 13075 13642 18826 32467 318 28 220 566 13075 18826 32467 1500 776 0 27.9Aug 2022342 47 254 13333 13976 18849 32825 342 47 254 643 13333 18849 32825 2270 683 0 27.5Sep 2022403 83 291 13411 14188 18969 33158 403 83 291 777 13411 18969 33158 3040 478 0 27.2Oct 2022


Documents

November 24-Month Study Date: November 14, 2019 · November 24-Month Study projects an annual release of 8.23 maf in water year 2020. Consistent with Section 2.B.5 of the Interim