Iron is one of the earth's most plentiful resources, making up at least five percent of the earth's crust. Rainfall seeping through the soil dissolves iron in the earth's surface and carries it into almost every kind of natural water supply, including well water. The present recommended limit of iron in water, 0.3mg/L (ppm), is based on taste and appearance rather than any detrimental health effect. The Human Health standard for Total Iron is not to exceed 1.5mg/L.
But first, a few facts about Iron.
Iron is one of the earth's most plentiful resources, making up at least five percent of the earth's crust |