Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2024
ProjectLower Monumental
River ParameterTemperature Tailrace
Critical Temperature Tailrace Value15 C
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Total Run Period (Apr 1 - Jul 1)
Total Number of Fish Observed821
Percent of Total Run Analyzed [Number Observed]100 % [821]
Temperature Tailrace Exposure Index13.53 C
Percent of Fish Exposed [Number Exposed]45.6 % [375]
Number of Days Fish Exposed19
Middle 80% of Run Period (Apr 7 - Jun 30)
Number of Fish Observed685
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [685]
Temperature Tailrace Exposure Index13.68 C
Percent of Fish Exposed [Number Exposed]45.9 % [315]
Number of Days Fish Exposed18
Middle 50% of Run Period (Apr 15 - Jun 28)
Number of Fish Observed457
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [457]
Temperature Tailrace Exposure Index13.96 C
Percent of Fish Exposed [Number Exposed]44.6 % [204]
Number of Days Fish Exposed16
Run Dates
First Day of RunApr 1
5% of Run passedApr 3
10% of Run passedApr 7
50% of Run passedMay 9
90% of Run passedJun 30
95% of Run passedJul 1
Last Day of RunJul 1
Date(s) When Temperature Tailrace Crosses 15 C
Jun 13