Municipal Drinking Water Iron Removal Société Nationale de Distribution et d’Exploitation des Eaux (SONEDE), Tunisia Process The secondary maximum contaminant level (MCL) for iron is 0.3 milligrams per liter (mg/l). Iron in excess of the suggested maximum contaminant level (MCL) usually results in discolored water and laundry. Because iron can be present in water in several forms, each form requires a different method treatment for remov

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