Navajo Dam Project Notices

Navajo Dam

Project Notices

To be added to the email list for these notices, please email westcoloareaoffice@usbr.gov

Project notices are for the current water year (WY2022). For previous WY posted notices please email westcoloareaoffice@usbr.gov

 

 



BUREAU OF RECLAMATION
NAVAJO DAM RELEASES

SENT VIA E-MAIL
April 15th, 2022

In response to a warmer weather forecast and increasing runoff, the Bureau of Reclamation has scheduled a decrease in the release from Navajo Dam from 500 cubic feet per second (cfs) to 300 cfs for Monday, April 18th, at 4:00 AM.

Releases are made for the authorized purposes of the Navajo Unit, and to attempt to maintain a target base flow through the endangered fish critical habitat reach of the San Juan River (Farmington to Lake Powell). This release change is calculated as the minimum required to maintain the target baseflow.

The San Juan River Basin Recovery Implementation Program recommends a target base flow of between 500 cfs and 1,000 cfs through the critical habitat area. The target base flow is calculated as the weekly average of gaged flows throughout the critical habitat area from Farmington to Lake Powell.

This scheduled release change is subject to changes in river flows and weather conditions. If you have any questions, please contact Susan Behery (sbehery@usbr.gov or 970-385-6560), or visit Reclamation’s Navajo Dam website at https://www.usbr.gov/uc/water/crsp/cs/nvd.html.

BUREAU OF RECLAMATION
NAVAJO DAM RELEASES

SENT VIA E-MAIL
April 11th, 2022

In response to increasing irrigation and decreasing flows in the critical habitat reach, the Bureau of Reclamation has scheduled an increase in the release from Navajo Dam from 300 cubic feet per second (cfs) to 500 cfs for Tuesday, April 12th, at 4:00 AM.

Releases are made for the authorized purposes of the Navajo Unit, and to attempt to maintain a target base flow through the endangered fish critical habitat reach of the San Juan River (Farmington to Lake Powell). This release change is calculated as the minimum required to maintain the target baseflow.

The San Juan River Basin Recovery Implementation Program recommends a target base flow of between 500 cfs and 1,000 cfs through the critical habitat area. The target base flow is calculated as the weekly average of gaged flows throughout the critical habitat area from Farmington to Lake Powell.

This scheduled release change is subject to changes in river flows and weather conditions. If you have any questions, please contact Susan Behery (sbehery@usbr.gov or 970-385-6560), or visit Reclamation’s Navajo Dam website at https://www.usbr.gov/uc/water/crsp/cs/nvd.html.

BUREAU OF RECLAMATION
NAVAJO DAM RELEASES

SENT VIA E-MAIL
April 4th, 2022

In response to increasing flows in the critical habitat reach, the Bureau of Reclamation has scheduled a decrease in the release from Navajo Dam from 350 cubic feet per second (cfs) to 300 cfs for Tuesday, April 5th, at 4:00 AM.

Releases are made for the authorized purposes of the Navajo Unit, and to attempt to maintain a target base flow through the endangered fish critical habitat reach of the San Juan River (Farmington to Lake Powell). This release change is calculated as the minimum required to maintain the target baseflow.

The San Juan River Basin Recovery Implementation Program recommends a target base flow of between 500 cfs and 1,000 cfs through the critical habitat area. The target base flow is calculated as the weekly average of gaged flows throughout the critical habitat area from Farmington to Lake Powell.

This scheduled release change is subject to changes in river flows and weather conditions. If you have any questions, please contact Susan Behery (sbehery@usbr.gov or 970-385-6560), or visit Reclamation’s Navajo Dam website at https://www.usbr.gov/uc/water/crsp/cs/nvd.html.

BUREAU OF RECLAMATION
NAVAJO DAM RELEASES

SENT VIA E-MAIL
March 16th, 2022

In response to decreasing flows in the critical habitat reach, the Bureau of Reclamation has scheduled an increase in the release from Navajo Dam from 350 cubic feet per second (cfs) to 400 cfs for Thursday, March 17th, at 4:00 AM.

Releases are made for the authorized purposes of the Navajo Unit, and to attempt to maintain a target base flow through the endangered fish critical habitat reach of the San Juan River (Farmington to Lake Powell). This release change is calculated as the minimum required to maintain the target baseflow.

The San Juan River Basin Recovery Implementation Program recommends a target base flow of between 500 cfs and 1,000 cfs through the critical habitat area. The target base flow is calculated as the weekly average of gaged flows throughout the critical habitat area from Farmington to Lake Powell.

This scheduled release change is subject to changes in river flows and weather conditions. If you have any questions, please contact Susan Behery (sbehery@usbr.gov or 970-385-6560), or visit Reclamation’s Navajo Dam website at https://www.usbr.gov/uc/water/crsp/cs/nvd.html.

BUREAU OF RECLAMATION
NAVAJO DAM RELEASES

SENT VIA E-MAIL
February 25th, 2022

In response to decreasing flows in the critical habitat reach, the Bureau of Reclamation has scheduled an increase in the release from Navajo Dam from 350 cubic feet per second (cfs) to 400 cfs for tomorrow, Saturday, February 26th, at 4:00 AM.

Releases are made for the authorized purposes of the Navajo Unit, and to attempt to maintain a target base flow through the endangered fish critical habitat reach of the San Juan River (Farmington to Lake Powell). This release change is calculated as the minimum required to maintain the target baseflow.

The San Juan River Basin Recovery Implementation Program recommends a target base flow of between 500 cfs and 1,000 cfs through the critical habitat area. The target base flow is calculated as the weekly average of gaged flows throughout the critical habitat area from Farmington to Lake Powell.

This scheduled release change is subject to changes in river flows and weather conditions. If you have any questions, please contact Susan Behery (sbehery@usbr.gov or 970-385-6560), or visit Reclamation’s Navajo Dam website at https://www.usbr.gov/uc/water/crsp/cs/nvd.html.

BUREAU OF RECLAMATION
NAVAJO DAM RELEASES

SENT VIA E-MAIL
February 8th, 2022

In response to increasing flows in the critical habitat reach, the Bureau of Reclamation has scheduled a decrease in the release from Navajo Dam from 400 cubic feet per second (cfs) to 350 cfs for Wednesday, February 9th, at 4:00 AM.

Releases are made for the authorized purposes of the Navajo Unit, and to attempt to maintain a target base flow through the endangered fish critical habitat reach of the San Juan River (Farmington to Lake Powell). This release change is calculated as the minimum required to maintain the target baseflow.

The San Juan River Basin Recovery Implementation Program recommends a target base flow of between 500 cfs and 1,000 cfs through the critical habitat area. The target base flow is calculated as the weekly average of gaged flows throughout the critical habitat area from Farmington to Lake Powell.

This scheduled release change is subject to changes in river flows and weather conditions. If you have any questions, please contact Susan Behery (sbehery@usbr.gov or 970-385-6560), or visit Reclamation’s Navajo Dam website at https://www.usbr.gov/uc/water/crsp/cs/nvd.html.

BUREAU OF RECLAMATION
NAVAJO UNIT
OPERATIONS UPDATE

Sent via Email on
January 21st, 2022

Reclamation’s January 24-Month Study includes a minimum probable (90% chance of being exceeded), a most probable (50% chance of being exceeded) and a maximum probable (10% chance of being exceeded) forecast. While Reclamation operates to the most probable forecast, the range of outcomes in the forecast is tracked on a monthly basis.  Due largely to a significant snow event at the end of December, the latest forecast and projected operations no longer show a shortage to contract deliveries at the Navajo Unit for water year 2022 under the minimum probable forecast. This projection will continue to be updated monthly as the forecast evolves.

Any projected shortage volume is modeled as a proportional distribution to project users (as per PL-87-483 and PL-111-11) and downstream target base flows (pursuant to the Navajo Reservoir’s Record of Decision, 2006).

In anticipation of increasingly severe drought, the Upper Basin states and Reclamation entered into a Drought Response Operations Agreement in 2019. Under this agreement, Reclamation initiated delivery of supplemental water to Lake Powell from the upper CRSP units beginning in July 2021. A total of 20,000 acre-feet was previously scheduled to be released from Navajo Reservoir on top of normal releases in late December, but due to declining hydrology forecasts and low snowpack at the time in the San Juan River Basin, that operation was cancelled with no plans to reschedule at this time. Releases from Navajo Reservoir may be considered as part of the 2022 Drought Response Operations Plan currently being developed as we continue to closely monitor conditions and projections in the coming months.

BUREAU OF RECLAMATION
NAVAJO DAM RELEASES

SENT VIA E-MAIL
January 12th, 2022

In response to decreasing flows in the critical habitat reach, the Bureau of Reclamation has scheduled an increase in the release from Navajo Dam from 350 cubic feet per second (cfs) to 400 cfs for Thursday, January 13th, at 4:00 AM.

Releases are made for the authorized purposes of the Navajo Unit, and to attempt to maintain a target base flow through the endangered fish critical habitat reach of the San Juan River (Farmington to Lake Powell). This release change is calculated as the minimum required to maintain the target baseflow.

The San Juan River Basin Recovery Implementation Program recommends a target base flow of between 500 cfs and 1,000 cfs through the critical habitat area. The target base flow is calculated as the weekly average of gaged flows throughout the critical habitat area from Farmington to Lake Powell.

This scheduled release change is subject to changes in river flows and weather conditions. If you have any questions, please contact Susan Behery (sbehery@usbr.gov or 970-385-6560), or visit Reclamation’s Navajo Dam website at https://www.usbr.gov/uc/water/crsp/cs/nvd.html.

BUREAU OF RECLAMATION
NAVAJO DAM RELEASES

SENT VIA E-MAIL
January 3rd, 2022

In response to decreasing flows in the critical habitat reach, the Bureau of Reclamation has scheduled an increase in the release from Navajo Dam from 300 cubic feet per second (cfs) to 350 cfs for Tuesday, January 4th, at 4:00 AM.

Releases are made for the authorized purposes of the Navajo Unit, and to attempt to maintain a target base flow through the endangered fish critical habitat reach of the San Juan River (Farmington to Lake Powell). This release change is calculated as the minimum required to maintain the target baseflow.

The San Juan River Basin Recovery Implementation Program recommends a target base flow of between 500 cfs and 1,000 cfs through the critical habitat area. The target base flow is calculated as the weekly average of gaged flows throughout the critical habitat area from Farmington to Lake Powell. Note that due to low storage and forecast inflows in WY 2022, the minimum release of 250 cfs, as documented in the Navajo Record of Decision (2006), may be implemented this winter or spring as long as that release can satisfy the target baseflow.

This scheduled release change is subject to changes in river flows and weather conditions. If you have any questions, please contact Susan Behery (sbehery@usbr.gov or 970-385-6560), or visit Reclamation’s Navajo Dam website at https://www.usbr.gov/uc/water/crsp/cs/nvd.html.

BUREAU OF RECLAMATION
NAVAJO UNIT
OPERATIONS UPDATE

Sent via Email on
December 15, 2021

Reclamation’s December 24-Month Study includes a minimum probable (90% chance of being exceeded), a most probable (50% chance of being exceeded) and a maximum probable (10% chance of being exceeded) forecast. While Reclamation operates to the most probable forecast, the range of outcomes in the forecast is tracked on a monthly basis.  Due to low early season snowpack and dry soil moisture conditions, the latest forecast and projected operations show the potential for a 59,000 acre-ft shortage in contract deliveries at the Navajo Unit for water year 2022 under the minimum probable forecast.

The shortage volume is modeled as a proportional distribution to project users (as per PL-87-483 and PL-111-11) and downstream target base flows (pursuant to the Navajo Reservoir’s Record of Decision, 2006), and results in a potential 11% reduction in normal volumes for those users.  This projection will be updated monthly as the forecast evolves.

In anticipation of increasingly severe drought, the Upper Basin states and Reclamation entered into a Drought Response Operations Agreement in 2019. Under this agreement, Reclamation initiated delivery of supplemental water to Lake Powell from the upper CRSP units beginning in July 2021.  A total of 20,000 acre-feet was previously scheduled to be released from Navajo Reservoir on top of normal releases in late December, but due to declining hydrology forecasts in the San Juan River Basin, this operation has been cancelled with no plans to reschedule at this time. Releases from Navajo Reservoir may be considered as part of the 2022 Drought Response Operations Plan currently being developed as we continue to closely monitor conditions and projections in the coming months.

B UREAU OF RECLAMATION
NAVAJO UNIT
OPERATIONS UPDATE

Sent via Email on
November 15th, 2021

Reclamation’s November 24-Month Study includes a minimum probable (90% chance of being exceeded), a most probable (50% chance of being exceeded) and a maximum probable (10% chance of being exceeded) forecast. While Reclamation operates to the most probable forecast, the range of outcomes in the forecast is tracked on a monthly basis.  The latest forecast and projected operations no longer show a shortage to contract deliveries at the Navajo Unit for water year 2022 under the minimum probable forecast. This projection will continue to be updated monthly as the forecast evolves.

Any projected shortage volume is modeled as a proportional distribution to project users (as per PL-87-483 and PL-111-11) and downstream target base flows (pursuant to the Navajo Reservoir’s Record of Decision, 2006).

In anticipation of increasingly severe drought, the Upper Basin states and Reclamation entered into a Drought Response Operations Agreement in 2019. Under this agreement, Reclamation initiated delivery of supplemental water to Lake Powell from the upper CRSP units beginning in July 2021.  The delivery from Navajo Reservoir, originally planned for late November through early December, has been postponed and is currently scheduled as a daily release of 1,300 cfs from December 20th to December 30th for a total of 20,000 acre-ft over our regular release. Reclamation will review this release plan after publication of the December 24-Month Study, currently anticipated mid-December.

We will continue to closely monitor conditions and projections as we work with the seven Colorado Basin states on a Drought Response Operations Plan in the coming months.

BUREAU OF RECLAMATION
NAVAJO DAM RELEASES

SENT VIA E-MAIL
November 1st, 2021

In response to decreasing irrigation and increasing flows in the critical habitat reach, the Bureau of Reclamation has scheduled a decrease in the release from Navajo Dam from 350 cubic feet per second (cfs) to 300 cfs for Tuesday, November 2nd, at 4:00 AM.

Releases are made for the authorized purposes of the Navajo Unit, and to attempt to maintain a target base flow through the endangered fish critical habitat reach of the San Juan River (Farmington to Lake Powell). This release change is calculated as the minimum required to maintain the target baseflow.

The San Juan River Basin Recovery Implementation Program recommends a target base flow of between 500 cfs and 1,000 cfs through the critical habitat area. The target base flow is calculated as the weekly average of gaged flows throughout the critical habitat area from Farmington to Lake Powell. Due to low storage and forecast levels in WY 2022, the minimum release of 250 cfs, as documented in the Navajo Record of Decision (2006), may be implemented this winter as long as that release can satisfy the target baseflow.

This scheduled release change is subject to changes in river flows and weather conditions. If you have any questions, please contact Susan Behery (sbehery@usbr.gov or 970-385-6560), or visit Reclamation’s Navajo Dam website at https://www.usbr.gov/uc/water/crsp/cs/nvd.html.

BUREAU OF RECLAMATION
NAVAJO UNIT
OPERATIONS UPDATE

Sent via Email on
October 26th, 2021

Reclamation’s October 24-Month Study includes a minimum probable (90% chance of being exceeded), a most probable (50% chance of being exceeded) and a maximum probable (10% chance of being exceeded) forecast. While Reclamation operates to the most probable forecast, the range of outcomes in the forecast is tracked on a monthly basis.  The latest forecast and projected operations show the potential for a 37,000 acre-ft shortage in contract deliveries at the Navajo Unit for water year 2022 under the minimum probable forecast.

The shortage volume is modeled as a proportional distribution to project users (as per PL-87-483 and PL-111-11) and downstream target base flows (pursuant to the Navajo Reservoir’s Record of Decision, 2006), and results in a potential 7% reduction in normal volumes for those users.  This projection will be updated monthly as the forecast evolves.

In anticipation of increasingly severe drought, the Upper Basin states and Reclamation entered into a Drought Response Operations Agreement in 2019. Under this agreement, Reclamation initiated delivery of supplemental water to Lake Powell from the upper CRSP units beginning in July 2021.  The delivery from Navajo is currently scheduled as a daily release of 1300 cfs from November 25 – December 5, 2021 for a total of 20,000 acre-ft over our regular release.
Currently Reclamation is reviewing the forecast operations with respect to the planned delivery of 20,000 acre-ft to Powell.

We will continue to closely monitor conditions and projections as we work with the seven Colorado Basin states on a Drought Response Operations Plan in the coming months.

BUREAU OF RECLAMATION
NAVAJO DAM RELEASES

SENT VIA E-MAIL
October 25th, 2021

In response to decreasing irrigation and increasing flows in the critical habitat reach, the Bureau of Reclamation has scheduled a decrease in the release from Navajo Dam from 400 cubic feet per second (cfs) to 350 cfs for Tuesday, October 26th, at 4:00 AM.

Releases are made for the authorized purposes of the Navajo Unit, and to attempt to maintain a target base flow through the endangered fish critical habitat reach of the San Juan River (Farmington to Lake Powell). This release change is calculated as the minimum required to maintain the target baseflow.

The San Juan River Basin Recovery Implementation Program recommends a target base flow of between 500 cfs and 1,000 cfs through the critical habitat area. The target base flow is calculated as the weekly average of gaged flows throughout the critical habitat area from Farmington to Lake Powell. Be advised, due to low storage and forecast levels in WY 2022, the minimum release of 250 cfs, as documented in the Navajo Record of Decision (2006), may be implemented this winter as long as that release can satisfy the target baseflow.

This scheduled release change is subject to changes in river flows and weather conditions. If you have any questions, please contact Susan Behery (sbehery@usbr.gov or 970-385-6560), or visit Reclamation’s Navajo Dam website at https://www.usbr.gov/uc/water/crsp/cs/nvd.html.

BUREAU OF RECLAMATION
NAVAJO DAM RELEASES

SENT VIA E-MAIL
October 15th, 2021

In response to decreasing irrigation and increasing flows in the critical habitat reach, the Bureau of Reclamation has scheduled a decrease in the release from Navajo Dam from 500 cubic feet per second (cfs) to 400 cfs for Monday, October 18th, at 4:00 AM.

Releases are made for the authorized purposes of the Navajo Unit, and to attempt to maintain a target base flow through the endangered fish critical habitat reach of the San Juan River (Farmington to Lake Powell). This release change is calculated as the minimum required to maintain the target baseflow.

The San Juan River Basin Recovery Implementation Program recommends a target base flow of between 500 cfs and 1,000 cfs through the critical habitat area. The target base flow is calculated as the weekly average of gaged flows throughout the critical habitat area from Farmington to Lake Powell. Be advised, due to low storage and forecast levels in WY 2022, the minimum release of 250 cfs, as documented in the Navajo Record of Decision (2006), may be implemented this winter as long as that release can satisfy the target baseflow.

This scheduled release change is subject to changes in river flows and weather conditions. If you have any questions, please contact Susan Behery (sbehery@usbr.gov or 970-385-6560), or visit Reclamation’s Navajo Dam website at https://www.usbr.gov/uc/water/crsp/cs/nvd.html.

BUREAU OF RECLAMATION
NAVAJO DAM RELEASES

SENT VIA E-MAIL
October 4th, 2021

In response to increasing flows in the critical habitat reach, the Bureau of Reclamation has scheduled a decrease in the release from Navajo Dam from 700 cubic feet per second (cfs) to 500 cfs today, October 4th, at 12:00 PM. During this change, the Auxilary 4x4 release will be closed and all flow will be through the power plant.

Releases are made for the authorized purposes of the Navajo Unit, and to attempt to maintain a target base flow through the endangered fish critical habitat reach of the San Juan River (Farmington to Lake Powell). The San Juan River Basin Recovery Implementation Program recommends a target base flow of between 500 cfs and 1,000 cfs through the critical habitat area. The target base flow is calculated as the weekly average of gaged flows throughout the critical habitat area from Farmington to Lake Powell.

This scheduled release change is subject to changes in river flows and weather conditions. If you have any questions, please contact Susan Behery (sbehery@usbr.gov or 970-385-6560), or visit Reclamation’s Navajo Dam website at https://www.usbr.gov/uc/water/crsp/cs/nvd.html.

 

 

Contact

Please contact the Operations Group via e-mail at ResourceMgr@usbr.gov for additional information.

Last Updated: 4/15/22