DWR Study Finds Limited Value in Reoperating Existing System

  • by Teresa McGaffic
  • Aug 25, 2017
  • Water News

The California Department of Water Resources has released a report evaluating potential options for the reoperation of the state’s existing flood protection and water supply systems to provide increased benefits to water supply, ecosystem, and flood management.  It concludes that potential benefits are limited with the current system, but more significant benefits could be achieved with investment in new infrastructure.

The document, titled Assessment of Reoperation Strategies, reports Phase III of DWR’s System Reoperation Study. DWR defines system reoperation in the context of water resources as “changing the operational and management procedures of existing water system facilities to obtain water resources related benefits.”  The study examines potential opportunities to increase water supply reliability, flood protection and ecosystem enhancement.

Phase III focused on alternative reoperation strategies for Shasta Lake, Lake Oroville and Lake McClure, included  basing operations on five-day weather forecasts, managing reservoirs in closer alignment with groundwater storage (known as conjunctive use), and increasing river flows to benefit the ecosystem. The report also describes the potential benefits of operating the State Water Project and Central Valley Project as a single project, sharing storage and conveyance facilities.

DWR lists the following key findings of the study:

  • Reoperating Oroville, Shasta, and McClure individually would have limited benefits, mainly because the reservoirs and their associated projects already are significantly optimized to meet existing flood and regulatory requirements and contractual commitments.
  • Operating the SWP and CVP as a single project would provide incremental water supply reliability and ecosystem restoration benefits; combined average annual water deliveries could increase by 100-150 thousand acre-feet per year.
  • Reoperation benefits were evaluated under existing and new Delta conveyance, and under current and projected future climate conditions. Projected benefits of reoperation under these scenarios were similar.
  • Achieving additional benefits likely would require investment in new infrastructure.

More information is available at the following links:

System Reoperation Study Phase III Fact Sheet

System Reoperation Study Phase III Report

System Reoperation Study Overview

 

 

Suggested Resources

15 RESOURCES prev next
Water Professionals Appreciation Week Toolkit

Sorry, but only ACWA members have permission to view this content. Member login is required.

Coalition Comments on State Wetland Definition and Procedures for Discharges

Submitted to the State Water Resources Control Board on Sept. 18, 2017.

Ag Industry Comments on COMMENTS ON STATEWIDE PROCEDURES FOR DISCHARGES OF DREDGED OR FILL MATERIALS

Submitted to the State Water Resources Control Board on Sept. 18, 2017.

Member Comments on Statewide Procedures for Discharges of Dredged or Fill Materials

Submitted to the State Water Resources Control Board on Sept. 18, 2017.

Comments on Proposed Surface Water Augmentation Regulations

Submitted to the State Water Resources Control Board on Sept. 12, 2017.

Special Members-Only Webinar: ACWA’s Proposed Agriculture Committee

Sorry, but only ACWA members have permission to view this content. Member login is required.

High Priority Federal Legislation Chart

Sorry, but only ACWA members have permission to view this content. Member login is required.

Federal Legislative Matrix

Sorry, but only ACWA members have permission to view this content. Member login is required.

Federal Regulatory Chart

Sorry, but only ACWA members have permission to view this content. Member login is required.

Joint Comments on Preliminary Draft Regulations for Environmental Lab Accreditation

Submitted to the State Water Resources Control Board on Sept. 7, 2017.

Water Reliability: The Continued Value of Local Projects (Region 8)

Sorry, but only ACWA members have permission to view this content. Member login is required.

No Water Tax Toolkit

Sorry, but only ACWA members have permission to view this content. Member login is required.

Priority Issues Bulletin

Sorry, but only ACWA members have permission to view this content. Member login is required.

Joint Response to Comments Related to 1,2,3-TCP MCL

Submitted to the State Water Resources Control Board on July 14, 2017.

Comments on ALJ Ruling to Modify D-17-01-006

Submitted to California Public Utilities Commission on July 11, 2017.

Suggested News

15 Articles prev next
DWR to Host Online SGMA Grant Workshop Sept. 27

The California Department of Water Resources will hold an online workshop Sept. 27 to help groundwater managers complete grant applications […]

ACWA News: Sept. 22, 2017

Sorry, but only ACWA members have permission to view this content. Member login is required.

Faces of Water Q&A – September 2017

  Telling the stories of the people who work to deliver California’s water… 1.) Describe your job? I am responsible for […]

Moulton Niguel and OC Coastkeeper Bring Water Education to Schools

Orange County schoolkids will soon get their feet wet in water policy. In a first-of-its-kind partnership just in time to […]

California Establishes Annual Water Professionals Appreciation Week

California’s first-ever Water Professionals Appreciation Week will launch Oct. 7 as part of a new annual designation intended to highlight […]

ACWA Presents Findings of Water Storage Integration Study to California Water Commission

The California Water Commission on Wednesday heard from a panel of speakers on the benefits of integrated water operations and […]

PPIC Recommends Action to Protect Headwater Forests

A newly released report by the Water Policy Center of the Public Policy Institute of California urges new commitment and […]

Key Water-Related Bills Held at End of Legislative Session

The 2017-’18 Legislative Session has been challenging by all accounts. ACWA staff, working with members and other stakeholders, were a […]

Central Basin Awarded for Achieving Highest Standards in Financial Reporting

Commerce, CA – The Central Basin Municipal Water District has been awarded the Certificate of Achievement for Excellence in Financial […]

TID Takes Visual Approach to its Annual Report

With a focus on infographics, numbers and visuals instead of the traditional narrative approach, Turlock Irrigation District published its 2016 […]

Critical Long-Term Conservation Bills Held in the Legislature

After months of intense advocacy by ACWA, its members, and other stakeholders, two key long-term conservation bills – AB 1668 […]

CALFED Grants Awarded to Santa Margarita and Semitropic

The Santa Margarita Water District and Semitropic Water Storage District have been awarded CALFED Water Use Efficiency Grants, the U.S. Bureau of […]

Water Plan Plenary to be held Sept. 27

The California Department of Water Resources will hold its second annual plenary for Update 2018 of the California Water Plan […]

Importance of Water Reliability Explored at ACWA Region 8 Event

More than 80 ACWA members gathered August 24th for the one-day Region 8 event, “Water Reliability: The Continued Value of […]

ACWA Members Tour Mount Tam Watershed

ACWA Region 1 and the Marin Municipal Water District hosted a tour of the Mount Tam watershed on August 4. […]