Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Chinook Query Parameters
Year2024
ProjectLower Monumental
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 2 - Jun 15)
Total Number of Fish Observed46651
Percent of Total Run Analyzed [Number Observed]100 % [46651]
Tailrace TDG Percent Exposure Index120.23 %
Percent of Fish Exposed [Number Exposed]56.5 % [26360]
Number of Days Fish Exposed22
Middle 80% of Run Period (May 8 - Jun 5)
Number of Fish Observed39475
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [39475]
Tailrace TDG Percent Exposure Index120.4 %
Percent of Fish Exposed [Number Exposed]63.3 % [25002]
Number of Days Fish Exposed12
Middle 50% of Run Period (May 13 - May 23)
Number of Fish Observed23860
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [23860]
Tailrace TDG Percent Exposure Index121.33 %
Percent of Fish Exposed [Number Exposed]90.3 % [21561]
Number of Days Fish Exposed8
Run Dates
First Day of RunApr 2
5% of Run passedMay 6
10% of Run passedMay 8
50% of Run passedMay 17
90% of Run passedJun 5
95% of Run passedJun 8
Last Day of RunJun 15
Date(s) When Tailrace TDG Percent Crosses 120 %
Apr 16, Apr 18, Apr 27, May 1, May 13, May 21, May 30, Jun 1, Jun 4, Jun 6, Jun 9, Jun 12, Jun 13, Jun 14