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Don Pedro Project Relicensing

Don Pedro Project Relicensing. Modesto Irrigation District | Turlock Irrigation District FERC Project No . 2299. Instream Flow Studies: Current. Procedural Background July 16, 2009 FERC Order – IFIM and Water Temperature Modeling Study Plan

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Don Pedro Project Relicensing

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  1. Don Pedro Project Relicensing Modesto Irrigation District | Turlock Irrigation District FERC Project No. 2299

  2. Instream Flow Studies: Current • Procedural Background • July 16, 2009 FERC Order – IFIM and Water Temperature Modeling Study Plan • Draft IFIM Study Plan provided to Agencies September 3, 2009 • Agency comments addressed • October 14, 2009 – Districts filed Final Study Plan with FERC • Agency Follow-Up Comments • May 2, 2010 FERC Order – Study Plan Implementation • Included staff conclusions regarding methodology and test flows • July 21, 2010 FERC Order – Revised Implementation Schedule • December 11, 2010 and July 31, 2011 Progress Reports • April 28, 2012 Final Report Deadline 2 Don Pedro Project Relicensing, FERC Project No. 2299 April 20, 2011

  3. Instream Flow Studies: Historical • 1981 CDFG IFIM Study • 19 transects over primary spawning Reach RM 50.5-42 • Flow simulation range of 20-600 cfs • Site-specific HSC for spawning Chinook salmon • 1991 TID/MID Re-Analysis of CDFG Data • Chinook spawning HSC revised, fry and juvenile HSC from literature • O. mykiss fry and juvenile HSC from literature • 1995 USFWS IFIM Study • 25 transects over RM 52.2-0 (23 used) • Flow simulation range of 25-1,200 cfs • Site-specific HSC for Chinook spawning (1991) and fry (1988), with Stanislaus data used for juveniles (1989) • O. mykiss fry and juvenile HSC from literature 3 Don Pedro Project Relicensing, FERC Project No. 2299 April 20, 2011

  4. Instream Flow Studies • 2011 IFIM Study • 40 transects over RM 49.3-29.7 • Flow simulation range of 150-1,200 cfs • Use site-specific HSC for spawning Chinook salmon • Existing literature-based HSC for fry/juvenile Chinook salmon and O. mykiss, with site-specific verification • Effective WUA predictions based on suitable temperatures • 2011 High Flow Study • 3 sites selected (RM 48.5, RM 48.0, RM 45) for detailed survey • Flow simulation range of 1,000-5,000 cfs • 2D modeling of velocity and depth on floodplain • Literature based HSC for juvenile salmon and predators 4 Don Pedro Project Relicensing, FERC Project No. 2299 April 20, 2011

  5. Instream Flow Studies 5 Don Pedro Project Relicensing, FERC Project No. 2299 April 20, 2011

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