News & Operations Blog

Change Order

Posted on Tuesday, April 17th, 2018

Date: Tue, Apr 17, 2018 at 9:07 AM

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

Date         Time    From (cfs)      To (cfs)

4/18/18       2100      5,000            4,900

4/18/18       2200      4,900            4,800
4/18/18       2300      4,800            4,700

4/19/18       0000      4,700            4,600
4/19/18       0100      4,600            4,500


4/19/18       2100      4,500            4,400

4/19/18       2200      4,400            4,300
4/19/18       2300      4,300            4,200

4/20/18       0000      4,200            4,100
4/20/18       0100      4,100            4,000


4/20/18       2100      4,000            3,900

4/20/18       2200      3,900            3,800
4/20/18       2300      3,800            3,700

4/21/18       0000      3,700            3,600
4/21/18       0100      3,600            3,500


4/21/18       2100      3,500            3,400

4/21/18       2200      3,400            3,300
4/21/18       2300      3,300            3,200

4/22/18       0000      3,200            3,100
4/22/18       0100      3,100            3,000


4/22/18       2100      3,000            2,900

4/22/18       2200      2,900            2,800
4/22/18       2300      2,800            2,700

4/23/18       0000      2,700            2,600
4/23/18       0100      2,600            2,500

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


Change Order

Posted on Friday, March 16th, 2018

Project:  Nimbus Dam

Please make the following release change to the American River.

date              time             from (cfs)          to (cfs)

3-18-18         2100           1750                  1650

3-18-18         2300           1650                  1550

3-19-18         0100           1550                  1450

3-19-18         0300           1450                  1350


3-19-18         2100           1350                  1250

Comment:   Storage conservation, ramping down to March FMS flow

Issued by:  P, Manza

Water Forum Comment: Current Minimum Release Requirement (MRR) as calculated by Reclamation is 1,250 cfs.  

Lions, and Tigers, and Wolves – Oh My!

Posted on Thursday, February 8th, 2018

Local Cub Scouts Spend an Afternoon at Cordova Creek

Local cub scouts and CivicSpark Fellows Cassie and Kat gather to learn about the history of the Cordova Creek Naturalization Project


December 10, 2017:

On an unseasonably warm December afternoon, 13 Cub Scouts and their

Cub scouts excitedly gather to admire Cordova Creek

families joined the CivicSpark Fellows (Water Forum) and Mary Maret (Sacramento County Regional Parks) for an afternoon of service and hiking along Cordova Creek, our recent restoration site in Rancho Cordova. Prior to the restoration project, Cordova Creek was nothing more than a concrete-lined storm drainage running through an abandoned agricultural field. The Water Forum and many partners (including Sacramento County Regional Parks, Soil Born Farms, and others) worked together to remove the concrete-lined storm drain and modify it to mirror a naturalized, meandering creek with CA native plants growing along and adjacent to the creek.


The scouts, all aged between 6-7 years old, spent the first half hour of their visit learning about the history

The scouts gather around Mary to learn how to plant acorns

of Cordova Creek, different aspects of riverine ecosystems, and the value of conservation and restoration. Then the group walked along the creek and discussed the importance of planting native vs. non-native plants. As soon as they reached the midway point of Cordova Creek, the scouts excitedly raced to the water’s edge and admired the creek.


After the fellows regained the scouts’ attention, the scouts were separated into two groups to begin their service work! Half the group planted acorn with Mary Maret and CivicSpark Fellow Kat Perkins. The remaining scouts and their families followed Cassie and worked together to remove the metal pins securing the irrigation lines in place that had begun to pinch and cause leaks in the water hoses. After an hour, the groups switched places so that everyone could experience each service event.


Both projects required teamwork and patience, and their successful efforts resulted in the planting of 48 acorns and the removal of 354 irrigation pins! We appreciate all the scouts’ hard work and look forward to seeing them again next year!

The cub scouts and CivicSpark Fellow Cassie gather near Cordova Creek for an end of the day group picture

Welcome New CivicSpark Fellows

Posted on Monday, January 22nd, 2018

  Welcome, New CivicSpark Fellows!

CivicSpark Central Inland Regional Team during their 50 Bikes for 50 Kids Service Event — The Water Forum’s Fellows are Kat Perkins (Top row, second from left) and Cassie Miller (Top Row, second from right)

The Water Forum is excited to introduce our two new CivicSpark Fellows who joined our team in November, and will work with us during their 11-month fellowship!


What is CivicSpark?

Map illustrating placement sites of CivicSpark Fellows

CivicSpark was launched in 2014 as a Governor’s Initiative AmeriCorps program as a dedicated way to build capacity for local Californian governments to address climate change and water management issues. The program, administered by the Local Government Commission in partnership with the Governor’s Office of Planning and Research, offers two Fellowship tracks: CivicSpark Climate (50 fellows) and CivicSpark Water (20 fellows). The fellows working at the Water Forum are both members of the Water track.

The 70 Fellows are placed in 7 regions across California, extending from urban centers to rural areas, north to south, and coastal to inland. The Fellows work with local governments to assist their agency’s response to climate change and water management through direct agency support, fostering regional partnerships, and supporting community engagement. Over the course of the service year, the Fellows complete research, planning and implementation of much needed climate and water-focused projects while striving to build long-term capacity to ensure that their work is sustained past their service year.

Meet Our Fellows

Cassandra Miller


Growing up in arid New Mexico, Cassie Miller developed an appreciation for the importance of water from a very young age. Cassie went on to pursue a degree in Biology with a concentration in Environmental Studies from Grinnell College and graduated in May 2016. Post-graduation, Cassie pursued her love of arid ecology and science accessibility by completing an 11-month Grinnell Corps Service Fellowship at Gobabeb Training and Research Centre, Namibia. At Gobabeb, Cassie developed and lead arid ecology programs for visitors and students, and assisted in the maintenance of the center’s long-term research. Living in the heart of the Namib Desert re-sparked Cassie’s interest in water resource management, thus leading to her current work with the Water Forum.

Projects at the Water Forum:

In addition to assisting in the exciting day-to-day at the Water Forum, which includes salmon carcass surveys and SGMA implementation, Cassie will be leading the continued maintenance effort for the Cordova Creek Naturalization project. She will coordinate and lead invasive species management and native plantings around the creek and work to develop a sustainable volunteer group in Rancho Cordova to increase awareness and use of the creek.

Why you applied to CivicSpark:

Cassie was attracted to the CivicSpark Fellowship because of its focus on creating links between environmental science and policy. Through this experience, Cassie hopes to gain a larger understanding of ways that science can guide policy to create solutions for a more sustainable future.

What are you most excited about this service year:

Cassie is excited to learn about the water world and the inner-workings of water resource management! She is eager to expand her understanding of aquatic science and is looking forward to transferring what she learns this year to policy work in her home state of New Mexico. She’s grateful to be in California and take advantage of the opportunity to explore new ecosystems and be in Sacramento, the nation’s leading actor on climate change policy!

Katherine Perkins


Kat Perkins graduated from UC Davis this past Spring with a degree in Sustainable Agriculture and Food Systems. Her passion for ecological stewardship extends back to her grade school days when she and her mom relocated thousands of spadefoot tadpoles from a stream near their inland San Diego County home threatened by suburban development. During college, Kat served as treasurer of her non-profit co-operative housing association and interned in educational gardens and farms. Before becoming a CivicSpark fellow, she worked as a technician on a study investigating the relationship between climate change and grapevine phenology. After shifting her focus to the terrestrial world, Kat has returned to a riverine ecosystem like the salmon she is now studying. She would like to continue working in social and environmental science, policy and planning, and to eventually earn an advanced degree, possibly in geography.

Projects at the Water Forum:

During her fellowship, Kat’s concentration will be on developing a methodology for aerial redds counts. She will take the lead on other GIS-related work like her current project of creating a triptych of the river for the conference room. Kat will also assist Cassie with the development of the Friends of Cordova Creek program and take on office tasks and fieldwork when needed.

Why you applied to CivicSpark:

Kat sees her fellowship as a prime opportunity to hone her project management and mapping skills while serving a region she has come to know and love over the last four years.

What are you most excited about this service year:

Kat is most looking forward to collaborating with and learning from Water Forum stakeholders and scientists as well as growing a powerful network of like-minded peers through the CivicSpark fellow community.


The Water Forum is excited to work with our Fellows and mentor them throughout the year! 😊