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Caption: Average monthly stream flows were estimated in Americano Creek at Valley Ford by Questa Engineering Corporation for the City of Santa Rosa and U.S. Army Corps of Engineers, using a water balance analysis. Estimated average flows are presented for dry, normal, and wet rainfall years. A dry rainfall year is considered to be the lowest 30 percent of rainfall years, and a wet rainfall year the highest 30 percent of rainfall years. Note that estimates do not take into account diversion of water for agricultural use and therefore may be higher then actual values. See Picture for a map showing Valley Ford, as well as the location of the rainfall gauging stations used in the water balance analysis.
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