. 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 . Ca/cu/erf/oos fronj A/fap F-53 ~e 7 S 9 To 77 72 73 74 75 Thousancf Mi//ion Oa//ons. £/ei/af/or? 37?oiv/?-r?7/hiys6^ = Datum. APPROVED BY Bv ) DRAWN .?. TRACED CeZ^&if6^:&n<. DATE .J5ep/ CAPACITY AND AREA CURVESSAN ANTONIO RESERVOIR SUPERSEDES _.,.SUPERSEDED Br. SPRINS VALLEY WATER SYSTEM WATER WILL BE STORED IN CLOSE PROXIMITY TO THE SUNOL GRAVELS. 46. Plate 13 ^ ^^ I I 47 48 THE FUTURE W
. 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 . Ca/cu/erf/oos fronj A/fap F-53 ~e 7 S 9 To 77 72 73 74 75 Thousancf Mi//ion Oa//ons. £/ei/af/or? 37?oiv/?-r?7/hiys6^ = Datum. APPROVED BY Bv ) DRAWN .?. TRACED CeZ^&if6^:&n<. DATE .J5ep/ CAPACITY AND AREA CURVESSAN ANTONIO RESERVOIR SUPERSEDES _.,.SUPERSEDED Br. SPRINS VALLEY WATER SYSTEM WATER WILL BE STORED IN CLOSE PROXIMITY TO THE SUNOL GRAVELS. 46. Plate 13 ^ ^^ I I 47 48 THE FUTURE WATER SUPPLY OP SAN FRANCISCO. reservoir occurred four times, one of which waslarge and the other three small. The surpluswaters are as follows: Season. Amount, M. G. 1892-93 900 1893-94 1,100 1894-95 2,800 1896-97 300 Total 5,100 The reservoir was just empty at the begin-ning of the floods of 1905-6, at which time thestorage increased rapidly in spite of the draftupon it, and was practically fuU at the end ofthe floods of 1910-11. The gTOss draft from the San Antonio Reser-voir imder these conditions is found to M. G. D. By deducting an evaporation loss of 48 peryear over the area of the water surface of thereservoir the net safe yield becomes M. G. D. Surplus Water From San Antonio Reservoir Enters Sunol Gravels. The surplus waters in the seasons above enu-merated will be discharged into the Sunol GravelReservoir, where they will assist in maintainingthe draft from the Sunol gravels. The San Antonio Reservoir and the SunolGravel Reserv
Size: 1213px × 2061px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade, booksubjectwatersupply, bookyear1912
