Columbia Basin Performance Measures
Adult Passage Exposure Results
| Year | 2025 |
|---|---|
| Project | Lower Monumental |
| River Parameter | Tailrace TDG Percent |
| Critical Tailrace TDG Percent Value | 120 % |
| Calculate Exposure | Above Critical Value |
| River Parameter Data Fill | No |
| Query Dates | 3/15 - 6/15 |
| Total Number of Fish Observed | 47764 |
|---|---|
| Percent of Total Run Analyzed [Number Observed] | 100 % [47764] |
| Tailrace TDG Percent Exposure Index | 119.69 % |
| Percent of Fish Exposed [Number Exposed] | 49.3 % [23579] |
| Number of Days Fish Exposed | 25 |
| Number of Fish Observed | 38348 |
|---|---|
| Percent of Middle 80% of Run Analyzed [Number Observed] | 100 % [38348] |
| Tailrace TDG Percent Exposure Index | 119.95 % |
| Percent of Fish Exposed [Number Exposed] | 54.5 % [20932] |
| Number of Days Fish Exposed | 15 |
| Number of Fish Observed | 25135 |
|---|---|
| Percent of Middle 50% of Run Analyzed [Number Observed] | 100 % [25135] |
| Tailrace TDG Percent Exposure Index | 119.51 % |
| Percent of Fish Exposed [Number Exposed] | 41.1 % [10342] |
| Number of Days Fish Exposed | 8 |
| First Day of Run | |
|---|---|
| 5% of Run passed | |
| 10% of Run passed | |
| 50% of Run passed | |
| 90% of Run passed | |
| 95% of Run passed | |
| Last Day of Run |