Impurities in Water Supply Systems

Typiclal limits for impurities in drinking water.

Impurity	Limit (ppm)
Color	20
Copper	3.0
Fluoride	1.0
Hardness, Ca and Mg salts	100
Lead	0.1
Magnesium	125
Iron plus manganese	0.3
Solids	500
Turbidity	10

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Impurities in Water Supply Systems

Typiclal limits for impurities in drinking water.

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