A Monthly Report of Project Operations and Flathead Lake Levels-November 1, 2016
Se̓liš Ksanka Ql̓ispe̓ Hydroelectric Project Operation for Flathead Lake
Representatives from Energy Keepers, Inc. (“EKI”), NorthWestern Energy (“NWE”), U.S. Army Corps of Engineers
The following is a table comparing EKI’s current outlook for outflow (cfs) compared to cumulative historical data from 1999-2015.
(“Corps”), the Confederated Salish and Kootenai Tribes (“CSKT’), and Bureau of Indian Affairs conferred on October 25, 2016 regarding current and projected operation of the Seli’š Ksanka Qlispe (formerly Kerr) Project. The current outflow is about 18,300 cubic feet per second (cfs) and the lake elevation, as of November 1st at midnight was 2,892.6 feet. In October, the natural streamflow was 338% of average (historical data from 1981-2010) and is forecasted to be 233% of normal in November. Precipitation accumulation was 347% of average as measured by the National Weather Service at the SKQ Dam. October was a very, very wet month in the Flathead Basin. Natural average inflow was ~11,906 cfs (cubic feet per second) while October is normally ~3,527 cfs. Although EKI started October ~.3′ lower than historical average at 2892.15′, this was still not enough to get us close to our Halloween target of 2891′ to mitigate shoreline erosion. To manage the lake elevation, EKI started spilling in the last week of October, with our end goal to hold the elevation at or less than 2892.6′. With a 2-unit operation, the turbines maxed out at ~9,850 cfs discharge. Our current outflow which includes spill is ~18,300 cfs. Current inflow is ~20,900 cfs. Flows into the Flathead Lake are forecasted to decline in the next few weeks, but November water supply outlook is still at 233% of normal. Our plan is to hold the current operation through the first week of December when our 3rd generator will hopefully be returned to service. By the end of December, we plan on being drafted down below 2891′.
|Outflow(cfs)||10th Percentile||Historical Average||90th Percentile||EKI
|Elevation||Avg. Elevation historical|
EKI is a Tribally-owned corporation with which CSKT has delegated the authority and responsibility to manage, operate and maintain the (formerly Kerr) Se̓liš Ksanka Ql̓ispe̓ Project on behalf of CSKT.
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