stockton and vallejo cistern |
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| navigate by keyword : 175 about all and are around auxiliary awss brick case circles cistern cisterns city citywide crop down exact fact fire franciscos innercity just locations major nknown not nother patterns properly random red san scattered stockton supply system systems there these underground used vallejo versions water |
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| Not just random patterns, or inner-city versions of crop circles, these red brick circles are in fact the exact locations of San Francisco`s underground cisterns. Known properly as Auxiliary Water Supply System, there are about 175 of these AWSS scattered around the city. To be used in case of nother, major, city-wide fire and all the water systems are down, each one of these tanks cn hold about 172,000 gallons of water. |
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