Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Chinook Query Parameters
Year2018
ProjectLittle Goose
River ParameterTailrace TDG Percent
Critical Tailrace TDG Percent Value120 %
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates3/15 - 6/15
Total Run Period (Apr 4 - Jun 15)
Total Number of Fish Observed31834
Percent of Total Run Analyzed [Number Observed]100 % [31834]
Tailrace TDG Percent Exposure Index118.34 %
Percent of Fish Exposed [Number Exposed]46 % [14675]
Number of Days Fish Exposed15
Middle 80% of Run Period (May 15 - Jun 8)
Number of Fish Observed26720
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [26720]
Tailrace TDG Percent Exposure Index118.93 %
Percent of Fish Exposed [Number Exposed]53.8 % [14376]
Number of Days Fish Exposed13
Middle 50% of Run Period (May 22 - Jun 4)
Number of Fish Observed17210
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [17210]
Tailrace TDG Percent Exposure Index120.24 %
Percent of Fish Exposed [Number Exposed]76.7 % [13206]
Number of Days Fish Exposed11
Run Dates
First Day of RunApr 4
5% of Run passedMay 14
10% of Run passedMay 15
50% of Run passedMay 31
90% of Run passedJun 8
95% of Run passedJun 12
Last Day of RunJun 15
Date(s) When Tailrace TDG Percent Crosses 120 %
May 10, May 12, May 19, May 20, May 21, Jun 2