Author Archives: Kat Perkins

Change Order

Posted on Friday, May 4th, 2018

Date: Thu, May 3, 2018 at 9:34 AM
Subject: Nimbus Dam – Change Order

Please make the following release changes to the American River at Nimbus:

Date             Time           From (cfs)           To (cfs)
5/07/18        2100           2,000                   1,900
5/07/18        2200           1,900                   1,800
5/07/18        2300           1,800                   1,750

5/10/18        0800           1,750                   2,500
5/10/18        0900           2,500                   3,500

5/11/18        2100           3,500                   3,400
5/11/18        2200           3,400                   3,300
5/11/18        2300           3,300                   3,200
5/12/18        0000           3,200                   3,100
5/12/18        0100           3,100                   3,000

5/12/18        2100           3,000                   2,900
5/12/18        2200           2,900                   2,800
5/12/18        2300           2,800                   2,700
5/13/18        0000           2,700                   2,600
5/13/18        0100           2,600                   2,500

5/13/18        2100           2,500                   2,400
5/13/18        2200           2,400                   2,300
5/13/18        2300           2,300                   2,200
5/14/18        0000           2,200                   2,100
5/14/18        0100           2,100                   2,000

5/14/18        2100           2,000                   1,900
5/14/18        2200           1,900                   1,800
5/14/18        2300           1,800                   1,750

Comment: pulse flow operation, coordinated with fisheries agencies

Issued by: Peggy Manza

The pulse flow accompanies the May 10th hatchery release of juvenile Chinook. This schedule results in a net water balance by dropping to the minimum river release (MRR) before and after the pulse.

Change Order

Posted on Friday, April 27th, 2018

Date: Fri, Apr 27, 2018 at 10:23 AM
Subject: Nimbus Dam – Change Order

Please make the following release changes to the American River at Nimbus:

Date            Time             From (cfs)        To (cfs)
5/01/18       0000             2,500                2,400
5/01/18       0100             2,400                2,300
5/01/18       0200             2,300                2,200
5/01/18       0300             2,200                2,100
5/01/18       0400             2,100                2,000

Comment: conserve storage

Issued by: Peggy Manza

Change Order

Posted on Thursday, April 26th, 2018

Date: Wed, Apr 25, 2018 at 9:44 AM
Subject: Nimbus Dam – Change Order

Please make the following release changes to the American River at Nimbus:

Date              Time         From (cfs)    To (cfs)
4/27/18         2100         2,500           2,400
4/27/18         2200         2,400           2,300
4/27/18         2300        2,300            2,200
4/28/18        0000         2,200            2,100
4/28/18        0100         2,100            2,000

Comment: conserve storage

Issued by: Peggy Manza

Change Order

Posted on Monday, April 9th, 2018

Date: Mon, Apr 9, 2018 at 9:25 AM
Subject: Nimbus Dam – Change Order – DOCUMENTATION of Previous Order
This order is documenting release changes that were made at Nimbus Dam on Sunday Night.
Please make the following release changes to the American River at Nimbus:

Date Time From (cfs) To (cfs)
4/8/18 2100 25,000 22,500
4/8/18 2300 22,500 20,000

Comment: Decreasing inflows

Issued by: Liz Kiteck

______________________________________

Date: Mon, Apr 9, 2018 at 9:51 AM
Subject: Nimbus Dam – Change Order

Please make the following release changes to the American River at Nimbus:

Date Time From (cfs) To (cfs)
4/9/18 2100 20,000 18,650
4/9/18 2300 18,650 17,300
4/10/18 0100 17,300 16,000

4/10/18 2100 16,000 15,000
4/10/18 2300 15,000 14,000
4/11/18 0100 14,000 13,000

4/11/18 2100 13,000 12,300
4/11/18 2300 12,300 11,600
4/12/18 0100 11,600 11,000

4/12/18 2100 11,000 10,500
4/12/18 2300 10,500 10,000
4/13/18 0100 10,000 9,500

4/13/18 2100 9,500 9,100
4/13/18 2300 9,100 8,700
4/14/18 0100 8,700 8,300

4/14/18 2100 8,300 7,950
4/14/18 2300 7,950 7,600
4/15/18 0100 7,600 7,300

4/15/18 2100 7,300 7,000
4/15/18 2300 7,000 6,700
4/16/18 0100 6,700 6,400

4/16/18 2100 6,400 6,150
4/16/18 2300 6,150 5,900
4/17/18 0100 5,900 5,650

4/17/18 2100 5,650 5,400
4/17/18 2300 5,400 5,150
4/18/18 0100 5,150 5,000

Comment: Decreasing inflows

Issued by: Peggy Manza

Change Order

Posted on Thursday, April 5th, 2018

Date: Thu, Apr 5, 2018 at 11:30 AM
Subject: Nimbus Dam – Change Order

Project: Nimbus Dam

Please make the following release changes to the American River:
date               time          from (cfs)     to (cfs)
4-06-18         0800          20,000          22,500
4-06-18         0900          22,500          25,000

Comment: Forecasted storm operations

Issued by: Peggy Manza

Change Order

Posted on Thursday, April 5th, 2018

Date: Thu, Apr 5, 2018 at 9:34 AM
Subject: Nimbus Dam – Change Order

Project: Nimbus Dam

Please make the following release changes to the American River:
date                time          from (cfs)          to (cfs)
4-05-18          1000         10,000                12,500
4-05-18          1100         12,500                15,000
4-05-18          1300         15,000                17,500
4-05-18          1400         17,500                20,000

Comment: Increase in forecasted Folsom Inflows

Issued by: Peggy Manza

Change Order

Posted on Tuesday, April 3rd, 2018

Date: Thu, Mar 29, 2018 at 9:32 AM
Subject: Nimbus Dam – Change Order

 

Project:  Nimbus Dam

 

Please make the following release changes to the American River:

date              time             from (cfs)          to (cfs)

3-29-18         2100             10,000                9,750

3-29-18         2300               9,750                9,500

3-30-18         2100               9,500                9,100

3-30-18         2300               9,100                8,700

3-31-18         0100               8,700                8,300

4-03-18         2100               8,300                7,950

4-03-18         2300               7,950                7,600

4-04-18         0100               7,600                7,300

Comment:   Decreasing inflows

Issued by:  Peggy Manza

 

 

Date: Tue, Apr 3, 2018 at 2:52 PM
Subject: Nimbus Dam – Change Order

Project: Nimbus Dam

Please make the following release changes to the American River:

4-04-18         0800         8,300         9,300
4-04-18         0900         9,300         10,000

Comment: Preparing for storm expected at end of week.

Issued by: Peggy Manza

 

Water Forum Named Environmentalist of the Year for Salmonid Habitat Work by Environmental Council of Sacramento!

Posted on Thursday, December 21st, 2017

The Water Forum received an Environmentalist of the Year Award from the Environmental Council of Sacramento (ECOS), in recognition of their years of salmonid habitat restoration work on the lower American River.

Accepting the ECOS award: Mike Gonsalves, City of Sacramento Department of Utilities; John Hannon, U.S. Bureau of Reclamation; Mike Healey, California Department of Fish and Wildlife; Beth Campbell, U.S. Fish and Wildlife Service; Adam Strebel, City of Sacramento Department of Utilities; Lilly Allen, Water Forum; Gary Grey, City of Sacramento Department of Utilities

Yearly gravel restoration projects carried out by the Water Forum create essential spawning and rearing habitat for endangered Chinook salmon and Steelhead trout. Central Valley dams have critically reduced much of their habitat and prevented their spawning gravel from moving downstream. These fish need fist size gravel to create their nests, called redds, to spawn. When flows in the river rise, so does the energy of the river which washes these rocks further downstream. Without these restoration projects, new fist-sized rocks would not be replenished near the top of the dam, where the best habitat is located. It is important that the Water Forum and our partners continue replacing these rocks so the fish can thrive.

This Award celebrates Sacramento region’s outstanding environmental successes and recognizes the individuals and organizations who spearheaded them.  Since its formation in 1971, ECOS has convened Sacramento’s environmental leaders to create a visionary forum and an action-oriented coalition for the region. This year marked the 45th Environmentalist of the Year awards ceremony hosted by ECOS. ECOS is also a signatory on the landmark Water Forum Agreement, which was signed in 2000.

Over the past 9 years, the Water Forum has designed and built over 30 acres of salmonid habitat along the lower American River. They have accomplished this through a collaborative process engaging stakeholders and scientists and partnering with the U.S. Bureau of Reclamation, U.S. Fish and Wildlife Service, California Department of Fish and Wildlife, the National Marine Fisheries Service and Sacramento County Parks.  

The Water Forum is anticipating construction throughout the river. The NEPA document is located here.