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Naturally occurring iron deposits have been stirred up within the water main system, this is often a result of water main flushing, which occurs in April and October. Another way this can happen is when a fire hydrant is used, either in the event of a fire near your home or unauthorized hydrant use. Whenever water is moved rapidly through the water mains, the iron deposits that settle to the bottom of the pipe get stirred up. We have also noticed a trend during hot weather, when a large number of irrigation systems are running and creating high water demand, the iron in the system can be stirred up.
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Human bodies require iron to function properly, but iron, like many substances, is toxic at high dosages. However, you could not consume enough water to cause toxic levels of iron in your body.
The Environmental Protection Agency considers iron in drinking water as a secondary contaminant, which means it does not have a direct impact on health. Although it won’t harm your health, iron will stain clothes and plumbing fixtures. You can stop the iron, before it enters your home, with an iron filter and water softener.