Who is affected . Levels of nitrate in Columbus drinking water pose no threat to the majority of people. Only infants less than six months of age are affected when the level of nitrate is above the standard. Pregnant or nursing women need not be concerned about the levels of nitrate in Columbus water. Many vegetables and processed meats contain nitrates.
Water is generally a minor source of nitrate in the diet.
Water suppliers are required to notify the public when nitrate levels are more than 10 parts per million in the drinking water. Occasionally, the water from the Dublin Road Water Plant exceeds this standard. Water Quality Assurance Laboratory routinely tests surface water samples and determines when nitrate levels are rising. A Nitrate Advisory is sent to newspapers and TV and radio stations when the nitrate level exceeds 10 parts per million. Through the media, parents of infants are notified of the specific area impacted and are advised to buy distilled water for the baby s needs until the advisory is lifted.