Public Water-supplies: Requirements, Resources, and the Construction of Works

amount aqueduct arrangement artesian average bacteria basins capacity cast-iron cent cholera cities coagulant coefficient concrete considerable construction consumption core-wall cost Croton Dam cubic curve depth determined diameter disease effect embankment Engineering estimated experiments feet filter filtered water filtration flow formula friction gallons gallons per day gravel ground-water hydraulic impervious inches increase intake iron joints Jour Lake layer less loss of head lower masonry dam material maximum method miles million gallons operation organic matter percolation pipe pipe-line placed plant pollution porosity porous pounds pressure pumps purification quantity rainfall Record reservoir River sand sedimentation sewage slope slow sand filter soil square mile steel storage strainer stratum streams Sudbury River supply surface surface-waters suspended matter Table thickness tion Trans tunnel turbidity typhoid typhoid fever usually valves various velocity W. W. Assn Water Purification Water-supply Water-works weir yield