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<br />002989 <br /> <br />1. Below Shoshone: Elk Creek Reservoir <br />J. Below Shoshone: Colony's Middle Fork Reservoir <br />k. Below Shoshone: Dry Hollow Reservoir <br />1. Below Shoshone: Kendig Reservoir <br />m. Below Shoshone: Main Stem Reservoir <br />n. Below Shoshone: Parachute Creek Reservoir <br />o. Below Shoshone: Starkey Gulch Reservoir <br />5. Power Plant Operations and Scheduling <br />a. East Slope Power Operations and Scheduling <br />b. Shoshone Power Plant <br />c. Grand Valley Power Plant <br />6. Other Alternatives <br />a. Insurance Pool Reservoir and/or Operations <br />b. Obtain Historic Irrigation Consumptive Use Credits <br /> <br />These alternatives are discussed in detail below and summarized in Table 1 at the end of this <br />report. <br /> <br />"C! <br /> <br />1'1 <br /> <br />3.2 <br /> <br />EXPANDED COORDINATED RESERVOIR OPERATIONS <br /> <br />Coordinated Reservoir Operations presently consist of the voluntary bypass of reservoir inflows <br />during the 7 to I 0 day spring peak. <br /> <br />Expanded Coordinated Reservoir Operations will attempt to increase peak enhancement <br />opportunities by removing some of the constraints that limit existing Coordinated Reservoir <br />Operations To increase spring hydro graph peaks beyond those achieved by the existing <br />Coordinated Reservoir Operations will require analysis and resolution of the issues identified by <br />the CROP group. The major issues are identified below. <br /> <br />E <br /> <br />. Flood Liability. Releases will not be made to supply additional water on the spring peak <br />in those years when the expected spring peak will exceed 26,600 cfs. This constraint on <br />releases will help insure that augmentation of spring peaks under this program will not <br />increase the magnitude of spring flooding. Augmenting spring peaks will, however, <br />increase the frequency and perhaps the duration of high water during the spring runoff <br />period. <br /> <br />The legal liability for flooding resulting from peak enhancement releases from <br />participating facilities needs to be addressed. Participating reservoir owners and <br />operators must know the real liability implications of operating their facilities for peak <br /> <br />p:\data\gen\Ocwcb\ IBI33\report\phase-l \chap- 3 .doc <br /> <br />3-3 <br />