Winter: Operate to N/A Year Round: Operate Refill by about June September: Draft Hungry Horse VARQ flood control in order to maintain 30 if possible without during July-September rule curves with a 75% and project minimum excessive spill and to a draft limit of 3550 probability of meeting flow requirements. operate to help meet ft (10 ft from full) by the April 10 elevation Operate using ramping flow objectives September 30, except objective. rates to minimize without exceeding in the driest 20 adverse affects of flow TDG limits. percentile of water Spring: Refill by fluctuations and conditions limit draft about June 30 if maintain a steady to 3540 ft (20 ft from possible without outflow if possible for full). excessive spill and July September. – operate to help meet flow objectives. Draft during to a draft limit of 3550 ft (10 ft from full) by September 30, except in the driest 20 percentile of water conditions limit draft to 3540 ft (20 ft from full).
Hungry Horse Winter: Operate to VARQ flood control rule curves with a 75% probability of meeting the April 10 elevation objective. Spring: Refill by about June 30 if possible without excessive spill and operate to help meet flow objectives. N/A Year Round: Operate in order to maintain and project minimum flow requirements. Operate using ramping rates to minimize adverse affects of flow fluctuations and maintain a steady outflow if possible for July – September. Draft during to a draft limit of 3550 ft (10 ft from full) by September 30, except in the driest 20 percentile of water conditions limit draft to 3540 ft (20 ft from full). Refill by about June 30 if possible without excessive spill and operate to help meet flow objectives without exceeding TDG limits. September: Draft during July-September to a draft limit of 3550 ft (10 ft from full) by September 30, except in the driest 20 percentile of water conditions limit draft to 3540 ft (20 ft from full).
20130925_2014_WMP_Draft_Oct1_NWD.docx