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Our Whitianga office will be closed to the public on Wednesday, 22 January. To report air or water pollution, unsafe water activities in or on a river, lake or harbour, or make a general enquiry or information request during this time, we can be contacted 24/7 on 0800 800 401.

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Effluent application depth

Use the template below to help you calculate effluent application depth:


Amount of nitrogen to be applied in kilograms per hectare
 

Nitrogen content of effluent in kilograms per litre (0.04% = 0.0004 kg/L)  
 

1 Hectare = 10000 square metres  
 
  =  
  Depth in millimetres