Nitrates are compounds most often linked to fertilizers, animal waste and wastewater. They can seep into groundwater and private wells, especially in agricultural areas. Nitrates can transform into nitrites, which are more reactive and can affect the blood’s ability to carry oxygen. While you can’t see, taste or smell nitrates or nitrites in water, they can still pose risks.

State testing in Williams Bay, Wisconsin confirmed high nitrite levels in the local water supply. After two cases of blue baby syndrome were traced to the water, officials issued a “do not drink” order and began distributing bottled water to residents.

Because nitrates and nitrites can go undetected without professional testing, it’s important to understand what’s in your water and take steps to reduce the risk.

Culligan offers water treatment solutions designed to reduce nitrates and nitrites in your drinking water. Our Aquasential® Smart Reverse Osmosis Drinking Water System and whole home filtration options can effectively reduce nitrates, nitrites and over 90 other common contaminants*, including lead, PFAS and pharmaceuticals.

All Culligan filtration products are tested and certified by third-party organizations to meet industry standards, including NSF/ANSI Standard 58 for reverse osmosis and NSF/ANSI Standard 53 for contaminant reduction. Learn more about the benefits of Aquasential® filtration on nitrites and nitrates.

Culligan’s bottled water delivery also ensures safer drinking water for you and your family. Culligan's bottled water is tested regularly to meet or exceed EPA standards. We are also members of the Water Quality Association (WQA) and International Bottled Water Association (IBWA), maintaining the highest standards of quality and safety.