Nutrient Neutrality and Sustainable Drainage for New Developments
Designated sites in England and Wales are protected under the Water Framework Directive Regulations (2017) and the Conservation of Habitats and Species Regulations (2017). This means that all developments in the affected catchment will have to demonstrate what is known as Nutrient Neutrality.
Nutrient Neutrality refers to the nutrients (nitrogen and/or phosphorus) in water. These nutrients from all surface water run-off and wastewater, generated by developments in the affected catchment, must be less than or equal to the nutrients generated by the existing land use.