What is Nitrate-N?

Nitrogen is an essential part of every living thing. Nitrate-N is formed when nitrogen combines with oxygen or ozone. However, nitrate-N easily dissolves in water and does not adhere to the soil which allows it to be easily carried into groundwater, making it one of the most common groundwater pollutants in Portage County and across the state of Wisconsin.

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1. What is Nitrate-N?
2. Where does Nitrate-N come from?
3. How do I know if Nitrate-N is elevated in my drinking water?
4. What can I do about elevated nitrate-N in my drinking water?