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1 <br />CHAPTER 3 <br />' RESULTS <br />1 3.1 INTRODUCTION <br />The technical investigation of the alternatives was reported as it was completed in a series of Technical <br />Memoranda which are attached to this report as Appendices A through L. These Technical <br />Memoranda were published in draft as the investigation of each alternative was completed, reviewed <br />by the Executive Committee and revised accordingly. After technical analysis of the alternatives was <br />completed, sensitivity analysis of the alternatives was carried out as originally directed: (1) in the <br />Ground Rules and Assumptions in the Phase 1 report and (2) by the Executive Committee at the <br />December 18, 2001 meeting. The results of this sensitivity analysis are included in the main body of <br />this report <br />A summary of study results is presented in Table 15 with more detailed description below. <br />3.2 SUMMARY OF RESULTS REPORTED IN TECHNICAL MEMORANDA <br />' NOS. 1-11 <br />1 3.2.1 General <br />Model results and data sets used in the course of this investigation are contained in Appendix P. <br />A summary of the investigation of the 19 alternatives for supplying the 20,000 acre-feet release to the <br />15-Mile Reach is presented in Table 15. Table 15, however, contains only a brief summary and the <br />j interested reader is directed to Technical Memoranda Nos. 1 through 11 (see Appendices A-L) for <br />details. <br />Important overall results include: <br />1. Supplying the 20,000 acre-feet to the 15-Mile Reach was not required every year. It <br />was necessary to supply the 20,000 acre-feet in only six, and possibly eight, years of <br />the 17 years for the 1975-91 study period. <br />1 2. Supplying the 20,000 acre-feet was not required during the very dry years of the <br />study period. For example, releases were not required in 1977 or 1981. Further <br />analysis indicates that supplying the 20,000 acre-feet would not have been required in <br />2001 and 2002. <br />3. Not having to supply the 20,000 acre-feet in dry years indicates that the 20,000 acre- <br />feet does not have to be supplied from firm yield. Instead, the 20,000 acre-feet can <br />be supplied from sources in a manner that minimizes or eliminates effects on <br />reservoir firm yields. <br /> <br />PAData\GEN\CWCB\19665\Report Phase 2\FinalReport9.03\Final_CFOPS_Report(9-03).doc 32