evidence: If nitrate is detected in your well water, there may be other contaminants in the water as well. Drinking water with levels of nitrate above 10 mg/L can lead to immediate health problems for infants below the age of six months and people with certain health problems. If nitrate is detected in your water at levels above 10 mg/L, follow these steps: - Get your drinking water from a safe alternative source, such as bottled water. This is especially important if there are any babies under six months old drinking the water or formula made with water. Boiled water is not a safe alternative if there is nitrate in your water; boiling water will make nitrate more concentrated. [...] - A licensed well contractor inspected your well and determined it is working properly; and - No babies under six months old drink the water (this is a safety precaution in the event the water treatment fails).