MODESTO IRRIGATION DISTRICT | TURLOCK IRRIGATION DISTRICT

FERC PROJECT NO. 2299

Don Pedro Project Don Pedro Project RelicensingRelicensing

Instream Flow Studies: CurrentInstream 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

April 20, 2011Don Pedro Project Relicensing, FERC Project No. 2299

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Instream Flow Studies: HistoricalInstream 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

April 20, 2011Don Pedro Project Relicensing, FERC Project No. 2299

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Instream Flow StudiesInstream 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

April 20, 2011Don Pedro Project Relicensing, FERC Project No. 2299

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Instream Flow StudiesInstream Flow Studies

April 20, 2011Don Pedro Project Relicensing, FERC Project No. 2299

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In-Channel IFIM Study Progress Milestones

Study Planning and Site Selection Completed Aug and Oct 2010

Revised Mesohabitat Mapping Completed September 16, 2010

Cross Section Placement Completed November 18, 2010

HSC Consultation In progress (essentially complete)

Field Data Collection (Hydraulic) July – September 2011*

Field Data Collection (Fry and Juvenile HSC) February – June 2012*

PHABSIM Modeling/Analysis September – December 2011

Over-Bank High Flow Study Progress Milestones

High Flow Stage Discharge Data Collection January – June 2011

2D Hydraulic Modeling/Analysis July 2011 – December 2011

Draft Report for Resource Agency Review February 2012

Final Report to Commission April 28, 2012