Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2019
ProjectLower Granite
River ParameterTailrace TDG Percent
Critical Tailrace TDG Percent Value120 %
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Total Run Period (Mar 1 - Dec 30)
Total Number of Fish Observed35094
Percent of Total Run Analyzed [Number Observed]100 % [35094]
Tailrace TDG Percent Exposure Index99.04 %
Percent of Fish Exposed [Number Exposed]0.4 % [144]
Number of Days Fish Exposed8
Middle 80% of Run Period (Jul 26 - Oct 30)
Number of Fish Observed28275
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [28275]
Tailrace TDG Percent Exposure Index97.93 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (Sep 24 - Oct 17)
Number of Fish Observed17916
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [17916]
Tailrace TDG Percent Exposure Index96.88 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunMar 1
5% of Run passedApr 2
10% of Run passedJul 26
50% of Run passedOct 4
90% of Run passedOct 30
95% of Run passedNov 7
Last Day of RunDec 30
Date(s) When Tailrace TDG Percent Crosses 120 %
Apr 10, Apr 12, Apr 21, Apr 27, May 18, May 19, Jun 2, Jun 3