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Tuesday, April 22, 2014

Lake Level Predictions



Scott A. Tolentino, Fisheries Biologist

Utah Division of Wildlife Resources
1030 N. Bear Lake Blvd.
Box 231
Garden City, UT  84028
(435) 946-8501 phone & fax

I attended the Bear Lake Preservation Advisory Committee Meeting  where Rocky Mountain Power (PacifiCorp) releases the projected lake levels and the irrigation allocation. 

For this year: Current Elevation: 5913.45', which is about 50% of the storage capacity of Bear Lake.  Not the total capacity of Bear Lake, just 50% of the top 21' of storage capacity.

Projected high for 2014:  5915.50'  (range of 5914.1 - 5917.1)  The two values in the "range" are 90% probability of 'not' happening.  In other words there is a 90% chance we will exceed 5914.1' and a 90% chance we will not get higher than 5917.1.

Current inflow into Bear Lake from Bear River is 250 cubic feet per second (CFS). Since the anticipated peak elevation (5915.5') is greater than 5914.7' (point at which conservation begins to take place), the irrigators have been granted a 100% allotment for 2014.  This amounts to 245,000 acre/feet. 



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