Interim Flows  Non-interactive line graphic Seepage Hotline: 916-978-4398

Interim Flow water releases began from Friant Dam into the San Joaquin River on October 1, 2009. After stopping on November 20th, 2009, Interim Flow releases resumed February 1, 2010 (Photo 1 | Photo 2 ). Full Restoration Flows start no later than January 1, 2014.

Non-interactive spacer Interim Flow Update:
  • On Tuesday, June 8, 2010, Interim Flows decreased to 350 cfs. Flows decreased to 325 cfs on Wednesday, August 18, 2010. Flows increased to 350 cfs at noon on Friday, August 27, 2010.
  • Water Safety - San Joaquin River Parkway & Conservation Trust Message - April 2010
  • Downstream Flow Information
  • Click on the Flow Monitoring link on the left navigation bar to see Interim Flow Monitoring data, or click on the links below.

 


Non-interactive spacerLandowners - concerned about potential seepage related to Interim Flows?

  • Call the Seepage Hotline: 916-978-4398
  • or
  • Click on InterimFlows@restoresjr.net and send us the following information:
    • Your name, phone number, and the best time to contact you
    • Description of the potential seepage location(s)
  • Program staff will follow up with you to discuss further and arrange a site visit, if needed.
  • Visit the Groundwater Monitoring Page to see recent groundwater level measurements.

Non-interactive spacerInterim Flows Environmental Compliance

  • Fall 2009 Water Quality Monitoring Results as required by WY 2010 Water Rights Order - January 2010
Water Year 2011 Interim Flows
Draft Supplemental Environmental Assessment - June 11, 2010
Water Year 2010 Interim Flows
Environmental Assessment - September 25, 2009
Biological Assessment - May 2009

Public Comment Period: June 11 - July 9, 2010

Comment Period extended to July 23, 2010

(close of business, 5 p.m. PDT)

  • The Water Year (WY) 2010 Interim Flows Draft EA was available for public review through July 20, 2009 (extended from July 6).  This is a joint document that describes the direct, indirect and cumulative effects of the proposed WY 2010 Interim Flows Project.
  • The Settlement identifies the releases of both Interim Flows and Restoration Flows. The Settlement stipulates the release of Interim Flows beginning October 1, 2009, and continuing until full Restoration Flows begin.
  • The purpose of the Interim Flows is to allow the Implementing Agencies to collect relevant data concerning flows, temperatures, fish needs, seepages losses, recirculation, recapture and reuse of flows. 
  • This Water Year 2010 EA/IS describes and evaluates potential environmental consequences of the range of flows potentially released as Interim Flows in the San Joaquin River beginning October 1, 2009, to September 30, 2010. 
  • The EA/IS also describes the potential locations and mechanisms for recapturing WY 2010 Interim Flows within the San Joaquin River from Friant Dam to the confluence of the Merced River (Restoration Area), and in the Sacramento-San Joaquin Delta (Delta). In addition, associated actions that may be undertaken to collect relevant data during WY 2010 are discussed.

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September 8, 2010

 

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