The Dalles Dam
June 2026
| Day of Month | Total Generation MWh | Average Generation MW | Station Use MWh | Inflow kcfs | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Midnight Reservoir Elevation | Average Forebay Elevation | Average Tailwater Elevation | Average Head feet |
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| 1 | | | | 226.40 | 230.60 | 134.90 | 89.90 | 157.49 | 158.24 | 79.14 | 79.10 |
| 2 | | | | 231.90 | 234.00 | 136.20 | 92.00 | 157.06 | 158.07 | 78.88 | 79.19 |
| 3 | | | | 233.40 | 231.20 | 131.50 | 94.00 | 157.43 | 158.34 | 79.07 | 79.27 |
| 4 | | | | 198.80 | 202.30 | 104.00 | 92.50 | 156.80 | 157.56 | 77.75 | 79.81 |
| 5 | | | | 232.80 | 227.20 | 140.40 | 81.00 | 157.86 | 157.67 | 78.54 | 79.13 |
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| TOT | | | | | | | | | | | |
| AVG | | | | 224.66 | 225.06 | 129.40 | 89.88 | 157.33 | 157.98 | 78.68 | 79.30 |
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| MAX | | | | 233.40 | 234.00 | 140.40 | 94.00 | 157.86 | 158.34 | 79.14 | 79.81 |
| MIN | | | | 198.80 | 202.30 | 104.00 | 81.00 | 156.80 | 157.56 | 77.75 | 79.10 |