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Iron in well water usually does not present a health problem. In fact, iron is needed to transport oxygen in the blood. The human body requires approximately 1 to 3 additional milligrams of iron per day (mg/day). The average intake of iron is approximately 16 mg/day, virtually all from food such as green leafy vegetables, red meat, and iron-fortified cereals. The amount of iron in water is usually low, and the chemical form of the iron found in water is not readily absorbed by the body. Iron bacteria, that may be associated with iron in water, are not a health problem.Iron may present some concern if certain bacteria have entered a well, since some pathogenic (harmful) organisms require iron to grow, and the presence of iron particles makes elimination of the bacteria more difficult.
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