Chlorination has been used for years to eliminate bacteria, iron, and other deposits from wells. If your well tests positive for fecal coliform or E. coli, you need to chlorinate your well. The presence of fecal coliform and/or E. coli indicate the possibility that more harmful bacteria may be present in your water.
Chlorination is also used to remove iron deposits from your well pump system. Depending on the type and quantity of the contamination, chlorination is often recommended to remove buildup. Removing buildup preserves the well pump and other associated equipment. In areas with high iron content, chlorination is recommended every 6 months.
Note: We recommend that you test your well water for E. coli and coliform bacteria a minimum once per year.