The nitrogen footprint calculator is a means for each homeowner to assess how much nitrogen they are contributing to our groundwater. In using the calculator, you will see that decisions made regarding how often we fertilize our yards, how much natural vs cleared space we have, and how many people we have in our homes effects our household nitrogen footprint. In the near future, Suffolk County will be approving the use of innovative and advanced septic systems that will reduce nitrogen discharges by more than 50%, creating the potential for nitrogen footprints to be reduced even further.
See FAQ section for helpful information on how you can help
Over fertilization of lawns can lead to contamination of groundwater, and nitrogen loading into local surface waters. It is important to know when to use or not use fertilizers and which fertilizers to use to decrease the amount of nitrogen that reaches local water ways, and help keep the groundwater safe for drinking.