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<br />0024n <br /> <br />exclusive of surcharge capacity. (In those cases where the dead capacity has not been measured, specific <br />mention of this fact should be made). <br /> <br />'~Capacity.-The part of the total reservoir capacity from which water can be withdrawn by gravity. This <br />capacity is equal to the total capacity less the dead capacity. <br /> <br />Active Capacity.-The reservoir capacity normally usable for storage and regulation of reservoir inflows to meet <br />established reservoir operating requirement. It extends from the highest of (1) the top of exclusive flood <br />control capacity, (2) the top of joint use capacity, or (3) the top of active conservation capacity, to the <br />top of inactive capacity. It is also the total capacity less the sum of the inactive and dead capacities, <br /> <br />Exclusive Flood Control Capacity.-The reservoir capacity assigned to the sole purpose of regulating flood <br />inflows to reduce flood damage downstream, In some instances, the top of exclusive flood control <br />capacity is above the maximum controllable water surface elevation, <br /> <br />Joint Use Capacity.-The reservoir capacity assigned to flood control purposes during certain periods of the <br />year and to conservation purposes during other periods of the year. <br /> <br />Active Conservation Capacity.-The reservoir capacity assigned to regulate reservoir inflow for irrigation, <br />power, municipal and industrial use, fish and wildlife, navigation, recreation, water quality, and other <br />purposes. It does not include exclusive flood control or joint use capacity. It extends from the top of the <br />active conservation capacity to the top of the inactive capacity. <br /> <br />'~active Capacity.-The reservoir capacity exclusive of and above the dead capacity from which the stored <br />water is normally not available because of operating agreements or physical restrictions. Under <br />~ ' abnormal conditions, such as a shortage of water or a requirement for structural repairs, water may be <br />evacuated from this space (after obtaining proper authorization). The highest applicable water surface <br />elevation described below usually determines the top of inactive capacity. <br /> <br />. The lowest water surface elevation at which the planned minimum rate of release for water supply <br />purposes can be made to canals, conduits, the river, or other downstream conveyance systems. This <br />elevation is normally established during the planning and design phases and is the elevation at the <br />end of extreme drawdown periods. <br /> <br />. The established minimum water surface elevation for fish and wildlife purposes. <br /> <br />. The established minimum water surface elevation for recreation purposes. <br /> <br />. The minimum water surface elevation as set forth in compacts and/or agreements with political <br />sudivi sion. <br /> <br />. The minimum water surface elevation at which the powerplant is designed to operate. <br /> <br />. The minimum water surface elevation to which the reservoir can be drawn down using established <br />operating procedures without endangering the dam, appurtenant structures, or reservoir shoreline. <br /> <br />. The minimum water surface elevation or top of inactive capacity established by legislative action, <br /> <br />Dead Capacity.-The reservoir capacity from which stored water cannot be evacuated by gravity, <br />