Currently, England’s most fragile rivers have some protection under the Habitats Regulations. These rules have led to a requirement for “nutrient neutrality” which means a new housing development in a river catchment must not result in an increase of damaging phosphates and other nutrients into the river.
Developers are currently required to invest in new wetlands and other measures such as planting trees to create buffer zones in order to achieve this target of ensuring that no additional pressure is put on waterways that are already suffering from an overload of farm slurry and sewage.