The Story of Man's Quest for Water

allowed amount Angeles aqueduct arches authorities bacteria Board bridge bring brought building built called capacity carried Catskill aqueduct caused cent changed chapter charge Chicago chlorine Company completed considerable construction contained continued cost Croton deaths diameter distribution drinking early effect engineer enter estimated expense Experiment fact feet Figure filter filtration finally flow fountains furnished gallons per day ground hills inches increased iron known lake land later less living located London lower mains matter means methods Michigan miles million nature needed obtained operation organic passed period person pipe plans plant pollution population possible present pressure pumping raised region reservoir River Roman sanitary says showed side sometimes sources springs story stream streets taken tion tunnel turn typhoid United valley waste water supply York