The USEPA and the State of Wisconsin have set a Maximum Contamination Level (MCL) of 10 ppm (mg/L) nitrate for public drinking water supplies and as a guide for private water supplies. A MCL is the highest level of a contaminant that is allowed in drinking water. Nitrates are dangerous especially to infants under the age of 6 months. Some symptoms include shortness of breath and blue-baby syndrome.  Most adults are not overly affected by nitrates.

Water Care Specialist, Plumbers, and Well Installers are all good sources for treatment systems for nitrates. There are several systems available to treat water for nitrates, and these professionals will be able to suggest the best system for your needs.