Uncontrolled Spill Flows below 3000 cfs Sample Clauses

Uncontrolled Spill Flows below 3000 cfs. Except during emergencies, up- Ramping Rates will, within limits as discussed herein, match the rise occurring in the East Branch of the North Fork Feather River at the time that the flow capacity of the generating units is exceeded. Physical limitations of existing gates and controls, dam safety considerations, and other limitations may prevent an exact match of rates. Down-ramping will be at the rate of fall of the East Branch of the North Fork Feather River provided that as the flow approaches the point that spill can be eliminated, Licensee will make a Good Faith effort to not exceed the basic down-ramp rate specified in Section 5.A above when increasing powerhouse flow. During Pulse Flow events as defined in the flow schedule, Licensee may hold the generating unit(s) constant below maximum capacity or reduce the generation to produce the required Pulse Flow. The up-Ramping Rate resulting from reduction in generation plus the observed rise in the East Branch of the North Fork Feather River shall not exceed the basic Ramping Rates under Section 5.A above. Pulse events can be terminated when East Branch flow is constant (flow rate is not fluctuating more than +/- 100 cfs/hr.) at which time normal operations resume and spill may be reduced at the basic down- ramp rate.