. The future water supply of San Francisco; a report to the Honorable the secretary of the interior and the Advisory board of engineers of the United States army . e draftfrom the Sunol Gravel Reservoir. From this mass diagram it will be noted thatthe reservoir would be just empty at the begin-ning of the floods of 1905-6 and full again at theend of the floods of 1910-1911. In the summerof 1912, following the remarkably dry winter of1911-1912, the reservoir would still be about %full. The relation between the catchment area square miles and the storage in the Cala-veras Reservoir is a


. The future water supply of San Francisco; a report to the Honorable the secretary of the interior and the Advisory board of engineers of the United States army . e draftfrom the Sunol Gravel Reservoir. From this mass diagram it will be noted thatthe reservoir would be just empty at the begin-ning of the floods of 1905-6 and full again at theend of the floods of 1910-1911. In the summerof 1912, following the remarkably dry winter of1911-1912, the reservoir would still be about %full. The relation between the catchment area square miles and the storage in the Cala-veras Reservoir is almost ideal, as, even exclud-ing the surplus water, about 921/2 % of the totalrun-off is conserved. Rarely is such an exten-sive and favorable reservoir site available belowsuch a large and productive catchment area andin such proximity to a metropolis. Plate 8 shows the storage capacity and areaof water surface for different depths in the Cala-veras Reservoir. Plate 9 shows a topographicalmap of Calaveras Reservoir and section of dam. San Antonio Reservoir FavorablyLocated with Regard toSunol Gravels. The San Antonio Reservoir is located on the 7^00i «A V. ss-e/ S7-S


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Keywords: ., bookcentury1900, bookdecade, booksubjectwatersupply, bookyear1912