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<br />- Releases are not made (as long as flood storage remains) <br />which would contribute to flooding at one or more specified downstream <br />locations during a predetermined number of future periods except to <br />satisfy minimum flow and rate-of-change of release criteria. <br />- Releases are made, where possible. to maintain downstream <br />fiows at channel capacity (for flood operation) or for minimum desired <br />or required flows (for conservation operation), In making a release <br />determination. local (intervening area) flows can be multiplied by a <br />contingency allowance (greater than 1 for flood control and less than <br />1 for conservation) to account for uncertainty in forecasting these <br />flows. <br />Operational criteria for keeping a reservoir system in balance <br />are as follows: <br />- Where two or more reservoirs are in parallel operation above <br />a common control point. the reservoir that is at the highest index <br />level. will be operated first to try to increase the flows in the <br />downstream channel to the target flow. Then the remaining reservoirs <br />will be operated in a priority established by index levels to attempt <br />to fill any remaining space in the downstream channel without causing <br />flooding during any of a specified number of future periods. <br />- If one of two parallel reservoirs has one or more reservoirs <br />upstream whose storage should be considered in determining the priority <br />of releases from the two parallel reservoirs. then an equivalent index <br /> <br />10 <br />