The Village does not soften water during the treatment process, however we recommend residents purchasing a water softener and utility staff will be happy to help set it at the appropriate level. The EPA requires us to maintain certain levels of calcium and magnesium - minerals that cause hard water. They protect customers from exposure to lead from internal plumbing systems. The water should be depositing a fine layer of calcium on the pipes. If the water is too soft, it can corrode or break down pipes and fixtures, releasing lead and copper from your plumbing.