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Salt River Project - Main Page
Project Water Supply
Historic Conditions:
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Normal |
7.66 in |
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Maximum - 1978 |
15.23 in |
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Minimum - 1977 |
3.16 in |
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Phoenix, Arizona 1961-1990 |
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Mean Annual |
72.4 °F |
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Daily Maximum - 06/26/1990 |
122 °F |
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Daily Minimum - 01/05/1950 |
17 °F |
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Phoenix, Arizona 1948-1996 |
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Growing Season |
304 days |
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Elevation of irrigable area |
900 - 1,300 ft |
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Drainage area at Roosevelt Dam |
5,824 mi2 |
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Annual discharge at Roosevelt Dam: |
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Maximum - 1916 |
2,729,200 acre-ft |
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Minimum - 1913 |
496,500 acre-ft |
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Average - |
1,007,285 acre-ft |
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Annual discharge at Mormon Flat Dam: |
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Maximum - 1928 |
787,410 acre-ft |
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Minimum - 1929 |
549,750 acre-ft |
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Average - |
619,186 acre-ft |
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Annual discharge at Stewart Mountain Dam: |
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Maximum - 1973 |
1,445,667 acre-ft |
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Minimum - 1952 |
248,127 acre-ft |
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Average - |
608,562 acre-ft |
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Drainage area at Bartlett Dam |
6,160 mi2 |
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Annual discharge: |
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Maximum - 1973 |
1,116,162 acre-ft |
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Minimum - 1961 |
126,291 acre-ft |
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Average - |
358,078 acre-ft |
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Project Water Quality
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