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Matches in Harvard for { ?s ?p SOURCES OF WATER POLLUTION: Natural pollution -- Human-induced pollution -- DOMESTIC WATER-SUPPLY-SYSTEM CONSTRUCTION: Ground water systems -- Wells - Springs and seeps -- Surface water -- SIGNIFICANCE OF WATER-QUALITY CONSTITUENTS: Dissolved solids -- Specific electric conductance -- Sodium -- Potassium -- Calcium -- Magnesium -- Hardness -- Bicarbonate and carbonate -- Sulfate -- Chloride -- Silica (silicon dioxide) -- Iron -- Manganese -- Nitrate -- Fluoride -- pH -- Gases -- Trace elements -- Odor -- Organisms -- SAMPLING AND ANALYZING WATER: Why sample and analyze water for a domestic supply? -- Safety of the water supply -- Biological safety of water -- Chemical safety of water -- Organic compounds -- How to obtain a sample for water-quality analysis -- How to collect, preserve, package, identify, and ship sample bottles and containers for bacteriological analysis -- Tracing the source of water contamination -- . }

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