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

2. Water Temperature Modeling
Procedural Background
July 16, 2009 FERC Order –IFIM and Water Temperature Modeling Study Plan
October 14, 2009 – Districts Final Study Plan to FERC
Includes Agency Comments on Draft Plan and resolution
May 2, 2010 FERC Order – Study Plan Implementation
Staff conclusions regarding Agency Comments
July 21, 2010 FERC Order – Revised Implementation Schedule
November 9, 2010 Progress Report
March 12, 2011 Final Report Deadline
September 3, 2009 – Districts Draft Study Plan to Agencies
October 5, 2009 – Agency Comments to Districts regarding methodology and process
November 5, 2009 – Agency Comments of Final Study Plan
December 18, 2009 – Districts Response to Agency Comments 2
Don Pedro Project Relicensing, FERC Project No. 2299
April 20, 2011

3. Water Temperature Modeling
Water Temperature Modeling Study Progress Milestones
Validate Existing Water Temperature Model
Completed August 10, 2010
Initial Scenario Development and Evaluation
Completed September 9, 2010
Model Simulations and Analysis
Completed October 25, 2010
Progress Report
Completed November 9, 2010
Agency Review Draft Report Preparation
Completed December 10, 2010
Agency Review Comment Period
Completed January 10, 2011
Final Report to Commission
Completed March 12, 2011
Instream Flow and Effective Habitat Evaluations*
September – December 2011 3
Don Pedro Project Relicensing, FERC Project No. 2299
April 20, 2011

4. Water Temperature Modeling
Study Questions from July 16, 2009 FERC Order:
Flows needed to meet MWAT of 68°F (20°C) from La Grange Dam (RM 53) to Roberts Ferry Bridge (RM 39.5) in summer
Relationship between flow and water temperature at various time periods in the lower Tuolumne River
Agency Study Questions – Flows needed to meet:
MWAT of 64.4°F (18°C) from La Grange Dam (RM 52) to Roberts Ferry Bridge (RM 39.5) in summer
MWAT of 18ºC (64.4ºF) from La Grange Dam (RM 52) to the San Joaquin River (RM 0) from October 15 to December 1st
MWAT of 13ºC (55.4ºF) from La Grange Dam (RM 52) to Roberts Ferry Bridge (RM 39.5) from October 15, to February 15
MWAT of 15ºC (59.0ºF) from La Grange Dam (RM 52) to San Joaquin River (RM 0) from March 20 to May 15
September 3, 2009 – Districts Draft Study Plan to Agencies
October 5, 2009 – Agency Comments to Districts regarding methodology and process
November 5, 2009 – Agency Comments of Final Study Plan
December 18, 2009 – Districts Response to Agency Comments 4
Don Pedro Project Relicensing, FERC Project No. 2299
April 20, 2011