Fertilizers contain large amounts of phosphorus and nitrogen which can cause algal blooms in aquatic areas. These blooms deplete the oxygen in water, resulting in fish kills.


  • Sweep and collect any fertilizer from driveways and walkways. Do not wash these materials into storm drains.
  • Avoid overusing fertilizers. Determine the mineral needs of your soil and apply the necessary amendments. Contact the NJDEP for assistance.
  • Never apply fertilizer before it rains.
  • Donate unwanted fertilizer to a friend, local garden club, or other organization that can use it up.
  • Save unusable fertilizer for a household hazardous waste collection.