Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2024
ProjectMcNary
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 (Apr 1 - Oct 31)
Total Number of Fish Observed113521
Percent of Total Run Analyzed [Number Observed]100 % [113521]
Tailrace TDG Percent Exposure Index105.59 %
Percent of Fish Exposed [Number Exposed]1 % [1157]
Number of Days Fish Exposed25
Middle 80% of Run Period (Aug 7 - Oct 11)
Number of Fish Observed91581
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [91581]
Tailrace TDG Percent Exposure Index104.67 %
Percent of Fish Exposed [Number Exposed]0.4 % [446]
Number of Days Fish Exposed2
Middle 50% of Run Period (Sep 4 - Sep 28)
Number of Fish Observed58586
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [58586]
Tailrace TDG Percent Exposure Index103.48 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunApr 1
5% of Run passedJul 15
10% of Run passedAug 7
50% of Run passedSep 19
90% of Run passedOct 11
95% of Run passedOct 19
Last Day of RunOct 31
Date(s) When Tailrace TDG Percent Crosses 120 %
May 14, May 25, May 30, Jun 2, Jun 4, Jun 15, Jul 26, Jul 28, Aug 3, Aug 4, Aug 5, Aug 6, Aug 8, Aug 9, Aug 14, Aug 15