Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Chinook Query Parameters
Year2024
ProjectLower Granite
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 9 - May 1)
Total Number of Fish Observed194
Percent of Total Run Analyzed [Number Observed]100 % [194]
Tailrace TDG Percent Exposure Index121.5 %
Percent of Fish Exposed [Number Exposed]96.3 % [187]
Number of Days Fish Exposed18
Middle 80% of Run Period (Apr 19 - May 1)
Number of Fish Observed178
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [178]
Tailrace TDG Percent Exposure Index121.56 %
Percent of Fish Exposed [Number Exposed]100 % [178]
Number of Days Fish Exposed13
Middle 50% of Run Period (Apr 24 - May 1)
Number of Fish Observed148
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [148]
Tailrace TDG Percent Exposure Index121.76 %
Percent of Fish Exposed [Number Exposed]100 % [148]
Number of Days Fish Exposed8
Run Dates
First Day of RunApr 9
5% of Run passedApr 15
10% of Run passedApr 19
50% of Run passedApr 28
90% of Run passedMay 1
95% of Run passedMay 1
Last Day of RunMay 1
Date(s) When Tailrace TDG Percent Crosses 120 %
Apr 14